Computer generated transcript

Warning!
The following transcript was generated automatically from the content and has not been checked or corrected manually.

Interventional Radiology Curriculum for Medical Students Second Edition A brief overview common clinical C RSE handled by IRsMay 2019 Editorial Board Editor in Chief Christoph Binkert Editors Roberto Cazzato Jan Jaap Janssen Gregory Makris Arash Najafi Fatemeh Sakhinia CIRSE Central Office Neutorgasse 9/6 1010 Vienna Austria Phone: +43 1 904 2003 Fax: +43 1 904 2003 30 E-mail: info@cirse.org www.cirse.org © All rights reserved by the Cardiovascular and Interventional Radiological Society of Europe / 2019 TableofContents Introduction 2 IVascular 3 1.1 Peripheral Vascular Disease 3 An1.2rysms 4 Ve1. us 5 1.3.1 Venous Thromboembolic Disease 5 1.3.2 Chronic Venous Obstruction 5 1.4 Embolisation for Benign Conditions 6 1.4.1 Uterine Fibroid Embolisation 6 1.4.2 Prostate Artery Embolisation 6 1.4. trointesei ding 7 1.4.4 Gonadal Vein Embolisation 7 Ac1. ss 8 1.5.1 Central Venous Access 8 1.i.l ni 8 Non-Vascular 9 2.1 BiopsiesandDrainages 9 PBili dures 9 Gen.itoIninavyntions 10 Interv3nci lnal 11 AThl. i pies 11 3.1.1 Liver Tumour Ablation 11 3.1.2 Renal Tumour Ablation 11 3.1.3 Lung Tumour Ablation 12 3.2 LiverMalignancy Embolisation 13 MusculoInterlvealions 14 4.1 Vertebral Compression Fractures and Vertebral Augmentation 14 4.2 Lower Back Pain 15 References 16 CIRSE and Interventional Radiology 18 Supporting IR’s Next Generation 19Introduction In order to make medical students aware of the ever-increasing role of IR in hospital medicine and to provide guidance on the learning outcomes required to preparemedical students for their role during residency years, CIRSE published the first edition of the Interventional Radiology Curriculum for Medical Students in 2012. In recognition of the rapid growth that IR has experienced since then, CIRSE founded a Task Force chaired by Prof. Binkert to revise this document and develop an updated version. This revised curriculum highlights the main areas of IRand outlines a variety of the most common clinical conditions routinely handled by interventional radiologists. It aims to support medical students planning on pursuing a career in IR and those who may participate in amultidisciplinary approach to patient care in the future. In order to get a structured overview, each topic is examined under the following headings: • Clinicalpresentation • Imaging before the procedure • IR treatment options • Clinical care and follow-up For a comprehensive overview of IR, students are encouraged to view the CIRSE European Curriculum and Syllabus for Interventional Radiology. InterventionalRadiology–Acareerfitforthefuture Vascular IR 3 VascuR lar 1.1 PeripheralVascularDisease Clinical presentation includingclassification: • Peripheral vascular disease (PVD) is a disease of the arteries which affects the extremities, usually the lower limbs. The most common causeis atherosclerotic disease with risk factors such as cigarette smoking, hypertension, hypercholesterolaemia and diabetes mellitus. It can present with or without concomitant coronary artery disease or cerebrovascular disease. • PVD is classified based on the presentation of intermittent claudication (IC), which is pain usually found in the calves, buttocks or thighs when walking. It progresses to disabling claudication and eventually to critical limb ischaemia (CLI). CLIrepresents an advanced stage of the disease with pain that cannot be relieved by standard analgesia. It presents with pain when at rest for 2 weeks or more. It can appear with or without the presence of tissue loss, this includes ulceration and/or gangrene. Untreated CLI often leads to limb loss from amputation. • PVD can also be classified based on the ankle brachial pressure index (ABPI). The normal ABPI ranges from 0.9-1.1. An ABPI of <0.8 represents PVD with a reduction in ABPI with IC [1–2]. CLI is also defined with an ABPI of <0.3 or an absolute pressure of <50 mmHg at the ankle or a toe systolic pressure of <30 mmHg in a person with diabetes [3]. • Fontaine classification system categorises PVD based on clinical symptoms [4]. Flast icetion Grade Symptoms Stage I Asymptomatic, incomplete blood vessel obstruction Stage II Mild claudication pain in limb Stage IIA Claudication at a distance >200 m Stage IIB Claudication at a distance <200 m Stage III Rest pain, mostly in the feet Stage IV Necrosis and/or gangrene of the limb • The Rutherford classification categorises PVD into acute and chronic limb ischaemia and highlights the different treatmentalgorithms for each presentation [5]. RuClaerfioi tion Grade CategoryClini escription 0 0 Asymptomatic I 1 Ml d n I 2 Mode d n I 3 S d n II 4 Ischaemicrestpain III 5 Minor tissue loss – nonhealing ulcer, focal gangrene with diffuse pedal ischaemia III 6 Major tissue loss – extending above trans metatarsal level, frank gangrene Cardiovascular and Interventional Radiological Society of Europe4 Vascular IR Imagingfindingsbeforeintervention: • Duplex ultrasound is often the first modality of imaging. • CT or magnetic resonance angiography (MRA) are the next modalities of imaging. Digital subtraction angiography (DSA) is preferred for treatment with concomitant balloon angioplasty and/or stenting of narrowed or blocked blood vessels. IRtreatmentoptions: • Endovascular procedures areperformed through a small access in the groin. If needed, after recanalisation of the stenotic or occludedsegment, the artery is dilated with a balloon followed by a stent. Newer developments include drug-coated balloons to improve patency and atherectomy to debulk calcifications. Clinicalcareand/orfollow-up: • Follow up is conducted in a clinic to review symptoms, check medication (typically an antiplatelet drug and a statin), examine the leg perfusion and control the angioplasty result with Duplex ultrasound. 1A2eurysms Clinical presentation includingclassification: • Aneurysms are defined as the dilatation of ablood vessel, usually greater than 50% of the normal diameter [6]. • Aneurysms can be classified based upon location,such as in the aorta, iliac artery or popliteal artery. There is also a distinction made between true aneurysms which involve all 3 layers of the blood vessel, and false/pseudo aneurysms which arise due to trauma or infection. • Abdominal aortic aneurysms (AAA) are the most common aneurysms. They are seen more frequently in men than women (4:1) and typically affect older patients [6]. These are thought to be atherosclerotic in nature with cigarette smoking as a common risk factor. Imagingfindingsbeforeintervention: • Aneurysms are often asymptomatic and are detected incidentally on ultrasound (US) or CT scanning. To accurately determine the size of the aneurysm and plan treatment, the gold standard for imagining is multi-sliced CT angiography (CTA). • On CTA, aneurysm anatomy and morphology are studied to assess suitability for endovascular repair (EVAR) and device selection. • Aneurysms can also first present once they rupture. Ruptured aneurysms carry a high mortality rate of between 80-90% [6]. In the United States of America, screening with US for men between the ages of 65-75 who have smoked is offered, whereas in the United Kingdom and Sweden, all men at the age of 65 are offered AAA screening [7–8]. IRtreatmentoptions: • EVAR is an alternative to open surgery. Suitable anatomy is important to exclude the aneurysm. Special devices such as fenestrated or branched stent grafts can be used in difficult anatomy. Clinicalcareand/orfollow-up: • Follow-up after EVAR is important to detect possible leaks into the aneurysm which will need to be fixed. The most common modality is CTA at 1 month, 6 months and then yearly. Interventional Radiology Curriculum for Medical Students Vascular IR 5 13nDu iss ase 1.3.1 VenousThromboembolicDisease Clinical presentation includingclassification: • Sluggish blood flow, intimal injury and hypercoagulability can lead to a venous blood clot (thrombus). If the thrombus dislocates and travels in the blood it is called an embolus. The most common thrombus sites are the legsand the pelvis. Patients usually experience pain and swelling in the affected leg, or dyspnoea and haemodynamic instability if there is a thrombus dislocation to the pulmonary arteries. Imagingfindingsbeforeintervention: • Imaging modalities include US for peripheral and abdominal veins and CTA for pulmonary embolism. Sonographic features of acute thrombosis include dilatationand non-compressibility of the vein, hyperechoic endoluminal matter anda lack of Doppler signal. On CTA there is a partial or total filling defect of the vessel lumen. IRtreatmentoptions: • The standard treatment is anticoagulation. • For extended venous thrombosis, the thrombuscan be dissolved either mechanically or pharmacologically, or using a combination of both to minimize the risk of post-thrombotic syndrome [9]. • If anticoagulation is contraindicated, the blood can be filtered to prevent a pulmonary embolism using a vena cava filter. Clinicalcareand/orfollow-up: • Anticoagulation is generally needed even after successful thrombolysis. Clinical and Duplex ultrasound are performed at 2 weeks and 3 months. 1.3.2 ChronicVenousObstruction Clinical presentation includingclassification: • Clinical symptoms and presentations vary depending on the location of the obstruction or occlusion. Chronic venous obstruction may occur after venous thrombosis with insufficient recanalisation. This can be due to anatomical venous variants or mechanic/external compression of the vein (e.g. tumour, May-Thurner Syndrome) [10]. The extremity before the obstruction is typically swollen and painful. Imagingfindingsbeforeintervention: • Imaging modalities commonly include US for peripheral veins and CT venography for the inferior vena cava. Sonographic features of chronic thrombosis include obliteration and fibrosis of a vein which has a lack of Doppler signal. On CT venography, the occluded veins are small with strongly developed collaterals. IRtreatmentoptions: • Recanalisation of the occluded vein with percutaneous transluminal angioplasty (PTA) and stenting is needed in nearly all cases to avoid recoil [11]. Clinicalcareand/orfollow-up: • Medical anticoagulation for several weeks. Clinical follow-up including Duplex ultrasound after 3 months. Cardiovascular and Interventional Radiological Society of Europe6 Vascular IR 1.4 EmbolisationforBenignConditions 1.4.1 UterineFibroidEmbolisation Clinical presentation includingclassification: • Fibroids are common and treatment is only necessary if they cause symptoms. Symptoms include heavy menstrual bleeding or bulk symptoms (i.e. sensation of pressure in the pelvis or urinary frequency). Imagingfindingsbeforeintervention: • Fibroids are solid masses within the uterinewall, they can be submucosal or subserosal. The fibroids can show areas of cystic degeneration/necrosis or calcifications. Magnetic resonance imaging (MRI) is the preferred imaging modalityfor determining size, vascularity and location. MRA can assess potential collaterals mainly in the ovarian arteries. IRtreatmentoptions: • Embolisation of both uterine arteries with particles (efficacy ~ 80%) [12]. Clinicalcareand/orfollow-up: • Patients experience some pain for 1-2 weeks after the procedure. Thereafter, they are usually pain free with symptoms resolving within 3 months. Clinical outpatient visits are typically scheduled at 2 weeks and again at 3 months or 6 months. 1.4.2 ProstateArteryEmbolisation Clinical presentation includingclassification: • Men with benign prostate hyperplasia (BPH) present with lower urinary tract symptoms (LUTS) consisting of storage symptoms (i.e. frequency, urgency, nocturia, urinary incontinence) or voiding symptoms (i.e. slow or intermittent urinary stream, hesitancy, terminal dribbling). The severity of the symptoms is assessed using the international prostate symptom score (IPSS) [13]. Imagingfindingsbeforeintervention: • Imaging modalities include US and MRI to determine gland size and lack of malignant features. MRA or CTA helps to assess the variable prostatic vessel anatomy before the procedure. IRtreatmentoptions: • Selective embolisation of the prostatic arteries with small particles (efficacy ~ 80%) [14]. Clinicalcareand/orfollow-up: • Prostate artery embolisation (PAE) is typically performed as an outpatient procedure. The symptoms improve within several months. Clinical outpatient visits are usually scheduled at 3 months, 6 months and 12 months. Interventional Radiology Curriculum for Medical Students Vascular IR 7 1.4.Gastrointestinaeeding Clinical presentation includingclassification: • Depending on the vessel location, patients with gastrointestinal (GI) bleeding experience haematemesis and melena (usually indicates a bleed in the upper GI, proximal to ligament of Treitz) or haematochezia (indicates a bleed in the lower GI, distal to ligament of Treitz). Imagingfindingsbeforeintervention: • CTA can detect the active bleeding site if the bleeding rate exceeds 0.3 ml/min [15]. It is visible as focal hyperdense spots on the arterial phase or pooling of contrast agent on the portal venous phase. For intermittent bleeding, a scintigraphy with labelled red blood cells can be performed. IRtreatmentoptions: • Embolisation of bleeding site by blocking the bleeding artery. Depending on the location, the embolic agent can be temporary (e.g. gelatine sponge) or permanent (e.g. coils or glue). Clinicalcareand/orfollow-up: • Bleeding should stop immediately after embolisation. Short term follow-up with lab tests and clinical visits. If necessary, the embolisation can be repeated. 1.4.4 GonadalVeinEmbolisation Clinical presentation includingclassification: • Insufficiency of the gonadal veins can lead to testicular varicosities with subsequent pain and infertility in men, or vulvovaginal varicosities and pelvic congestion syndrome (i.e. pain, dysmenorrhea, deep dyspareunia and urinary urgency) in women. Imagingfindingsbeforeintervention: • A testicular varicocele can be diagnosed sufficiently by US. Salient findings are serpentine dilatation of the pampiniform plexus >2-3 mm and flow reversal on Doppler sonography with Valsalva manoeuvre [16]. Sarteschi classification grades testicular varicoceles [17]. • Ovarian varicosities are best visualised oncontrast-enhanced MRI. Sonography is only performed for assessment of lower extremity vein insufficiencies. IRtreatmentoptions: • Embolisation of gonadal veins with sclerosants, coils and/or plugs (efficacy ~ 95%) [18]. Clinicalcareand/orfollow-up: • Gonadal vein embolisation is usually performed as an outpatient procedure. If sclerosants are used there can be some pain in following days. • An outpatient visit should be scheduled several weeks after the procedure. Cardiovascular and Interventional Radiological Society of Europe8 Vascular IR 15cess 1.5.1 CentralVenousAccess Clinical presentation includingclassification: • Common indications for central venous access include, the administration of noxious medications (e.g. chemotherapy or parenteral nutrition), haemodialysis, inadequate peripheral venous access, etc. Imagingfindingsbeforeintervention: • Usually no imaging is needed beforehand. Vein puncture is typically performed under US-guidance. Handling of the wire and catheter is performed under fluoroscopy. IRtreatmentoptions: • Central venous access consists of tunnelled catheters or ports. In the latter, a reservoir is implanted subcutaneously. Another variant is peripherally inserted central lines (PICC) which are typically inserted through a superficial upper extremity vein. Clinicalcareand/orfollow-up: • Outpatient or bed-side visit the next day. Patients should be seen again if the access malfunctions. 1.5.DialySi unt Clinical presentation: • Haemodialysis is one of the most common forms of dialysis for end stage renal disease. • Arteriovenous fistulas (AVFs) are created preferably between the radial artery and the cephalic vein. Imagingfindingsbeforeintervention: • US is used initially to determine the most suitable vein and afterwards to assess malfunctioning fistulas. IRtreatmentoptions: • PTA of the stenosis can be performed with or without a drug-eluting balloon (efficacy 80-90%) [19]. Occasionally stent grafts are used. • Recently endovascular creation of AVFs has been introduced. Clinicalcareand/orfollow-up: • Patients on dialysis are generally seen 3 times per week during which the AVF or shunts are observed. Interventional Radiology Curriculum for Medical Students Non-Vascular IR 9 N2n-VascuR lar 2.1 BiopsiesandDrainages Clinical presentation: • Biopsy: patients in which tissue sampling isnecessary for determining the aetiology of a lesion before treatment. • Drainages: patients with infected fluid collections causing sepsis (e.g. abscess or empyema), or mechanical complaints (e.g. pleural effusion or ascites). Imagingfindingsbeforeintervention: • US, CT or MRI can show the extent of the lesions or fluid collections and also determine the best access for puncture. IRtreatmentoptions: • Image-guided access using US, CT or fluoroscopy can be used to: ascertain the cytology or histology for sampling the solid lesions, and enable the aspiration or drainage for sampling and/ or evacuation of fluid collections. They can also be used to place the drainage catheter in a one- step procedure or using the Seldinger technique. Clinicalcareand/orfollow-up: • Patients should be monitored post-procedure for several hours. • Further imaging is performed before drain removal and if the drain is not working. 2B.2liProcedures Clinical presentation includingclassification: • Patients with biliary obstruction (e.g. due to benign/malignant stenosis or biliary stone disease) can present with jaundice and/or sepsis. Imagingfindingsbeforeintervention: • Magnetic resonance cholangiopancreatography (MRCP) is the best modality to assess biliary anatomy. • The cause of obstruction and potential abscesses can be evaluated using MRI, CT or US. IRtreatmentoptions: • The biliary system is accessed under US and fluoroscopic guidance. • Initially a catheter with multiple side holes is inserted with the tip in the duodenum to allow the most effective drainage. • Benign lesions are treated with a balloon and long-term drainage. • Malignant lesions are typically stented with a metal stent. • Removal of biliary stones can be done through the percutaneous access. Clinicalcareand/orfollow-up: • Patients should be observed overnight after the initial biliary drainage placement. • The biliary drainage catheter should be changed every 2-3 months because of the high viscosity of the bile. Cardiovascular and Interventional Radiological Society of Europe10 Non-Vascular IR 2G.3nitourinI rt rventions Clinical presentation: • Ureteral obstruction (e.g. due to; kidney stones, tumours or fibrosis) can lead to hydronephrosis, impaired renal function and even rupture of the renal collection system. • Urinary tract leakage can occur after abdominal trauma or iatrogenic injury. Imagingfindingsbeforeintervention: • US and non-contrast-enhanced computed tomography (NECT) are useful to identify renal stones. • CT urography shows the collecting systems, ureters and bladder. This helps determine the cause of the obstruction (e.g. tumour, stricture, etc.). IRtreatmentoptions: • An US-guided puncture is used for access to the pelvicalyceal system. Under fluoroscopic guidance, a nephrostomy catheter for external drainage can be placed, or a ureter stent can be advanced into the bladder. Clinicalcareand/orfollow-up: • Patients should be observed overnight after the initial nephrostomy catheter placement. • The nephrostomy catheter should be changed at least every 6 months or if it malfunctions. Interventional Radiology Curriculum for Medical Students Interventional Oncology 11 In 3erventio Oncology 3.blati erapies 3.1.1 LiverTumourAblation Clinical presentation includingclassification: • Primary or secondary liver lesions are usually found during staging CT scans or US. • Lesions can be classified according to the Barcelona Clinic Liver Cancer (BCLC) staging system and treatment strategy [20]. Imagingfindingsbeforeintervention: • Cross sectional images (e.g. CT, MRI) are necessary to determine the size and location of the tumours. • CT and MRI also help to plan access and ablation of these lesions. IRtreatmentoptions: • The most common ablation modalities are radiofrequency (RF) or microwave (MW). • For RF and MW a needle has to be placed into the lesion using image-guidance such as US or CT, or a combination of both. • After thermal ablation, the success is documented typically using contrast CT. Clinicalcareand/orfollow-up: • CT control with a clinical visit to determine the outcome and recognise the potential complications such as abscesses, biloma or bile leaks. 3.1.2 RenalTumourAblation Clinical presentation: • Renal masses are usually asymptomatic. Occasionally, they can cause back pain or macroscopic or microscopic haematuria. Imagingfindingsbeforeintervention: • Renal tumours are commonly incidental findings during routine imaging. US and multiphase CT are the most common imaging modalitiesto determine whether a renal mass is malignant. IRtreatmentoptions: • Small renal tumours or poor surgical candidatescan be treated with image-guided ablation [21]. • Besides heat (i.e. RF or MW), cold (i.e. cryotherapy) can be used. The latter has the advantage that the ice ball can be seen in CT or MRI. Clinicalcareand/orfollow-up: • A post-ablation CT is usually recommended to ensure that the targeted lesion has been treated and that no complications such as bleeding or urinary leak have occurred. Cardiovascular and Interventional Radiological Society of Europe12 Interventional Oncology 3.1.3 LungTumourAblation Clinical presentation: • Primary lung cancer and metastatic lung disease are usually asymptomatic but can occasionally manifest with haemoptysis, especially in advanced cases. Imagingfindingsbeforeintervention: • The chest radiograph is the main screening tool. However, CT is increasingly used for screening/staging. • The main imaging features on CT are noduleswithin the lung parenchyma, with or without hilar lymphadenopathy. IRtreatmentoptions: • Thermal ablation of the lungs can be used to treat both primary and secondary thoracic malignancies when they are small ≤3cm and few <5 [22]. • Good results have been reported in several studies [22]. Clinicalcareand/orfollow-up: • A post-ablation CT is performed within a few days to ensure adequate ablation of the targeted lesions and to ensure that no complications such as pneumothorax, pleural effusion, lung haemorrhage or the formation of a lung abscess have occurred. Interventional Radiology Curriculum for Medical Students Interventional Oncology 13 3.2 LiverMalignancyEmbolisation Clinical presentation includingclassification: • Primary or secondary liver lesions are usually an imaging finding during staging CT scans or US. However, there are occasions when they manifest as abnormal liver blood markers or with jaundice if there is a central lesion obstructing the common bile duct. Imagingfindingsbeforeintervention: • Solitary or multiple lesions involving various components of the liver. They typically show early enhancement of contrast and a contrast wash out during later phases. IRtreatmentoptions: • The BCLC staging system and treatment strategy outlines the treatment algorithm for liver lesions [20]. The main types of transcatheter arterial embolisation are: – Transcatheter arterial embolisation (TAE): The branches of the artery supplying the liver tumour/s are selectively cannulated and then occluded using microparticles. The main aim is to cut the blood supply to the tumour. – Transcatheter arterial chemoembolisation (TACE): This procedure is similar to TAE but is completed with chemotherapy loaded particles. The combination of ischemia and chemotherapy increases the effect. – Transarterial radioembolisation (TARE): This procedure is similar to TAE but completed with radioactive particles (Yttrium-90). The treatment involves injecting tiny microspheres of radioactive material into the arteries that supply the tumour so the spheres lodge in the small vessels of the tumour. As this treatment combines radiotherapy with embolisation, it is also called radioembolisation. Yttrium-90 is the radionuclide used. – Portal vein embolisation (PVE) prior to therapeutic hepatectomy: PVE is performed if the remaining liver volume after resection is not largeenough. Typically, this is the case after right-sided hepatectomy. By blocking the portal vein branches on the side of the resection in order to force the blood supply of the liver to move to the smaller side, the so-called future liver remnant can be increased in size. Clinicalcareand/orfollow-up: • There is typically some pain management needed after TAE or TACE. TARE and PVE are often outpatient procedures with few side effects. However, after TARE there is often some fatigue. • Follow-up is done with cross-sectional imaging (e.g. CT or MRI) to assess efficiency and to rule out complications such as abscess formation. Cardiovascular and Interventional Radiological Society of Europe14 Musculoskeletal Interventions M 4sculoskelenaerventions 4.1 VertebralCompressionFractures andVertebralAugmentation Clinical presentation includingclassification: • Benign osteoporotic fractures result from bone weakness due to substantial loss of mineral density. This condition can be physiologic (e.g. in post-menopausal women), or iatrogenic (e.g. caused by: steroid use, chemotherapy, hormonal treatments for cancers, fractures subsequent to thermal ablation or radiation therapy, etc.). The weakened vertebral body collapses due to minimal compressive stress, resulting in a vertebral compression fracture (VCF). This causes the vertebral body to lose part or all of its height. • Chronic unhealed VCFs result in a necrotic cavity filled with fluids and gases inside the vertebral body. This condition is known as Kummel’s disease and is generally painful. • A VCF may also occur as a result of high-energy trauma in healthy people, in such a case the Magerl’s classification is used [23]. This classification distinguishes VCFs in 3 main groups according to the type of traumatic stress. • Malignant vertebral body fractures are the consequence of bone destruction (including multiple myeloma). Imagingfindingsbeforeintervention: • X-ray is typically used to obtain an overview; however, before intervention, an MRI is commonly needed to assess the activity of a fracture. Healed fractures should not be treated. • If MRI is contraindicated, single photon emission computed tomography (SPECT-CT) should be used. • Pre-operative imaging should rule out the main contraindications to vertebral augmentation, including vertebral instability, spondylodiscitis and spondylarthrosis. IRtreatmentoptions: • Initially conservative treatment with analgesics can be used, but intervention should be considered if pain persists or if the vertebral body collapses further. • Standard vertebroplasty is performed by injecting an acrylic cement (i.e. polymethyl methacrylate (PMMA)) through uni- or bi-pedicular needles in the vertebral body. • Vertebroplasty can be combined with radiation therapy in malignant fractures. • Height restoration can be achieved through the use of balloons (i.e. kyphoplasty), or with stents (i.e. stentoplasty). The fracture should not be consolidated if height restoration is intended. Clinicalcareand/orfollow-up: • Following vertebroplasty, patients are instructed to have bed-rest for 4-6 hours. Thereafter, they may move without any significant restrictions. • A follow-up X-ray in an upright position, as well as a clinicalassessment is typically performed after 2-3 weeks. Additional fractures due to the fragile bones are common so additional vertebroplasties may be needed. Interventional Radiology Curriculum for Medical Students Musculoskeletal Interventions 15 4.2 LowerBackPain Clinical presentation includingclassification: • Lower back pain is very common and presents as acute or chronic pain of the lumbar region, with or without irradiation to the lower limbs. • Lower back pain has many causes including,disc tears in the annulus, disc herniation, degenerative or inflammatory changes of facet joints and spinal canal stenosis. Imagingfindingsbeforeintervention: • Unenhanced lumbar MRI is the preferred imaging modality used to postulate the possible cause of pain. • MRI findings should be combined with the patient’s history and a physical examination. IRtreatmentoptions: • Initially, conservative treatment withanalgesics and physiotherapy is preferred. • If conservative therapy is not successful, spinal injections can be performed under image- guidance (e.g. fluoroscopy or CT) to deliver anaesthetics and/or long-lasting anti-inflammatory steroids in the area where the pain is supposed to originate. • If back pain originates from the facet joints and recurs after the injection, a focal thermocoagulation can be considered. Clinicalcareand/orfollow-up: • A pain questionnaire (e.g. a visual analogue scale) is typically filled out 30 minutes after the injection in order to assess the immediate effect. • If the pain reoccurs, the injection can be repeated. If the pain free interval is short, surgical therapy can be considered, the response to the injection should reveal the source of pain. Cardiovascular and Interventional Radiological Society of Europe16 References References [1] F. Fowkes, E. Housley, E. Cawood, C. Mac Intyre, C. Ryckley and R. Prescott, “Edinburgh Artery Study: Prevalence of Asymptomatic and Symptomatic Peripheral Arterial Disease in the General Population”, International Journal of Epidemiology, vol. 20, no. 2, pp. 384-392, 1991. [2 A. Hirsch, M. H. Criqui, D. Treat-Jacobson, J. G. Regensteiner, M. A. Creager, J. W. Olin, S. H. Krook, D. B. Hunninghake, A. J. Comerota, M. E. Walsh, M. M. McDermott and W. R. Hiatt “Peripheral Arterial Disease Detection, Awareness, and Treatment in Primary Care”, JAMA, vol. 286, no. 11, pp. 1317-1324, 2001. [3] “Second European Consensus Document on Chronic Critical Limb Ischaemia”, European Journal of Vascular Surgery, vol. 6 (Supplement A), pp. 1-32, 1992. [4] R. Fontaine, M. Kim and R. Kieny, “Surgical treatment of peripheral circulation disorders [in German]”, Helvetica Chirurgica Acta, vol. 21, no. 5-6, pp. 499-533, 1954. [5] L. Norgren, W. Hiatt, J. Dormandy, M. Nehler, K. Harris and F. Fowkes, “Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II)”, Journal of Vascular Surgery, vol. 45, no. 1, pp. S5-S67, 2007. [6] K. Kent, “Abdominal Aortic Aneurysms”, New England Journal of Medicine, vol. 371, no. 22, pp. 2101-2108, 2014. [7] M. L. LeFevre and the U.S. Preventive Services Task Force, “Screening for Abdominal Aortic Aneurysm: U.S. Preventive Services Task Force Recommendation Statement”, Annals of Internal Medicine, vol. 161, no. 4, pp. 281-290, 2014. [8] S. Svensjö, M. Björck and A. Wanhainen, “Update on screening for abdominal aortic aneurysm: a topical review”. European Journal of Vascular and Endovascular Surgery, vol. 48, no. 6, pp. 659-667, 2014. [9] A. J. ten Cate-Hoek, “Prevention and treatment of the post-thrombotic syndrome”, Research and Practice in Thrombosis and Haemostasis, vol. 2, no. 2, pp. 209-219, 2018. [10] S. Khalid, A. Khalid, T. Meridores and H. Daw, “May-Thurner Syndrome: A Rare Cause of Deep Venous Thrombosis”, Cureus, vol. 10, no. 5, p. e2700, 2018. [11] O. Ahmed, J. Ng, M. Patel, T. J. Ward, D. S. Wang, R. Shah and L. V. Hofmann, “Endovascular Stent Placement for May–Thurner Syndrome in the Absence of Acute Deep Vein Thrombosis”, Journal of Vascular and Interventional Radiology, vol. 27, no. 2, pp. 167-173, 2016. [12] A.M. deBruijn, W.M. Ankum, J.A. Reekers, E. Birnie, S.M. van der Kooij, N.A. Volkers and W.J. Hehenkamp, “Uterine artery embolization vs hysterectomy in the treatment of symptomatic uterine fibroids: 10-year outcomes from the randomized EMMY trial”, American Journal of Obstetrics & Gynecology, vol. 27, no.2, pp167-173, 2016. [13] M. J. Barry, F. J. Jr. Fowler, M. P. O’Leary, R. C. Bruskewitz, H. L. Holtgrewe, W. K. Mebust and A. T. Cockett, “The American Urological Association Symptom Index for Benign Prostatic Hyperplasia”, Journal of Urology, vol. 148, no. 51, pp. 1549-1557, 1992. Interventional Radiology Curriculum for Medical StudentsReferences 17 [14] J. M. Pisco, T. Bilhim, L. C. Pinheiro, L. Fernandes, J. Pereira, N. V. Costa, M. Duarte and A. G. Oliveira, “Medium- and Long-Term Outcome of Prostate Artery Embolization for Patients with Benign Prostatic Hyperplasia: Results in 630 Patients”, Journal of Vascular and Interventional Radiology, vol. 27, no. 8, pp. 1115-1122, 2016. [15] W. Kuhle and R. Sheiman, “Detection of Active Colonic Hemorrhage with Use of Helical CT: Findings in a Swine Model”, Radiology, vol. 228, no. 3, pp. 743-752, 2003. [16] G. Liguori, C. Trombetta, G. Garaffa, S. Bucci, I. Gattuccio, L. Salame and E. Belgrano, “Color Doppler ultrasound investigation of varicocele”, World Journal of Urology, vol. 22, no. 5, pp. 378-381, 2004. [17] M. Valentino, M. Bertolotto, L. Derchi and P. Pavlica, “Children and adults varicocele: diagnostic issues and therapeutical strategies”, Journal of Ultrasound, vol. 17, no. 3, pp. 185-193, 2014. [18] C. Brown, M. Rizer, R. Alexander, E. Sharpe and J. Rochon, “Pelvic Congestion Syndrome: Systematic Review of Treatment Success”, Seminars in Interventional Radiology, vol. 35, no. 01, pp. 35-40, 2018. [19] G. Maleux, W. Vander Mijnsbrugge, D. Henroteaux, A. Laenen, S. Cornelissen, K. Claes, I. Fourneau and N. Verbeeck, “Multicenter, Randomized Trial of Conventional Balloon Angioplasty versus Paclitaxel-Coated Balloon Angioplasty for the Treatment of Dysfunctioning Autologous Dialysis Fistulae”, Journal of Vascular and Interventional Radiology, vol. 29, no. 4, pp. 470-475.e3, 2018. [20] European Association for the Study of the Liver, et al., “EASL–EORTC Clinical Practice Guidelines: Management of hepatocellular carcinoma”, Journal of Hepatology, vol. 56, no. 4, pp. 908-943, 2012. [21] H. D. Patel, P. M. Pierorazio, M. H. Johnson, R. Sharma, E. Iyoha, M. E. Allaf, E. B. Bass and S. M. Sozio, “Renal Functional Outcomes after Surgery, Ablation, and Active Surveillance of Localized Renal Tumors: A Systematic Review and Meta-Analysis”, Clinical Journal of the American Society of Nephrology, vol. 12, no. 7, pp. 1057-1069, 2017. [22] R. Lencioni, L. Crocetti, R. Cioni, R. Suh,D. Glenn, D. Regge, T. Helmberger, A. R. Gillams, A. Frilling, M. Ambrogi, C. Bartolozzi and A.Mussi, “Response to radiofrequency ablation of pulmonary tumours: a prospective, intention-to-treat, multicentre clinical trial (the RAPTURE study)”, The Lancet Oncology, vol. 9, no. 7, pp. 621-628, 2008. [23] F. Magerl, M. Aebi, S. Gertzbein, J. Harms and S. Nazarian, “A comprehensive classification of thoracic and lumbar injuries”, European Spine Journal, vol. 3, no. 4, pp. 184-201, 1994. Cardiovascular and Interventional Radiological Society of Europe18 CIRSE and Interventional Radiology CIRSEandInterventionalRadiology StudentsatCIRSE2018,Lisbon,Portugal WhatisCIRSE? The Cardiovascular and Interventional Radiological Society of Europe (CIRSE) is a non-profit making, educational and scientific association aiming to improve patient care through the support of teaching, science, research and clinical practice in the field of cardiovascular and interventional radiology. Whatisinterventionalradiology? Interventional radiology (IR) is a growing discipline at the forefront of modern medicine. Dynamic and innovative in nature, this minimally-invasive alternative to conventional practices attracts physicians who possess expertise in high-end imaging technology and clinical involvement with patients. Interventional radiologists (IRs) are doctors trained in radiology and in minimally-invasive procedures. Experts in both imaging technology and clinical involvement, IRs take care of their patients, while also cooperating closely with specialists from other medical fields. Their expertise in imaging techniques such as X-ray, ultrasound and CT enables them to perform many minimally-invasive procedures which can treat a vast range of medical conditions. FormoreinformationaboutCIRSEandIRpleasevisitwww.cirse.org Interventional Radiology Curriculum for Medical StudentsSupporting IR’s Next Generation 19 SupportingIR’sNextGeneration CIRSE be inspIRed... StudentProgrammeatCIRSE2018,Lisbon,Portugal CIRSEStudentMembership All medical students who started their first university degree no more than eight years ago and are still enrolled in a university programme are eligible to become CIRSE Student Members. As a member of CIRSE, students are on the CIRSE Library and the opportunity to purchase CME-accredited online courses through the CIRSE Academyses at a significantly reduced fee. Freshly graduated students will be offered CIRSE Junior Membership which will allow them to actively participate in CIRSE´s European Trainee Forum activities. GetmoreinformationaboutCIRSEStudentMemb ershipatwww.cirse.org/society/membership/ CIRSE’sStudentProgramme–BeinspIRed CIRSE invites all undergraduate medical students to attend CIRSE Annual Meetings for free in order to enjoy educational, engaging and fun IR-related onsite sessions and events. The Student Programme enables students device trainings and simulation sessions and joininglearning centres workshops, which are coordinatedands-on by CIRSE´s industry partners. To learn more about CIRSE’s student initatives, please visit the CIRSE website at www.cirse.org/students Cardiovascular and Interventional Radiological Society of Europe20 Notes Interventional Radiology Curriculum for Medical StudentsNotes 21 Cardiovascular and Interventional Radiological Society of Europe