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Summary

This VSC talk is perfect for medical professionals looking to further their understanding of presentations. Learn about the value of BSC projects, structures and tips for improving presentations from a successful surgeon who achieved top marks in his task. Add to your arsenal a specialized data collection mount and a comprehensive data set of 200 sutures usable in the clinic. Get insights on the role of hands, path, time and scoring from an objective assessment alongside further machine learning capabilities. Explore the reflection and networking expertise of multidisciplinary teams and managing expectations.

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Description

MedED is delighted to announce the final Year 4 lecture, focussing on BSc final project presentation!

The talk will take place on the 11th of May at 6pm and will be delivered by Sajan Patel.

Looking forward to seeing you there!

Learning objectives

Learning Objectives

  1. Explain the utility of hand tracking for assessment of medical students’ suturing skills.
  2. Discuss methods for objectively measuring technical skill to reduce subjectivity.
  3. Compare and contrast the reliability of manual evaluative measures with automated measures.
  4. Understand the impact of motor movements on performance assessments.
  5. Evaluate the strengths and weaknesses of a multi-disciplinary research team for data collection and analysis.
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Computer generated transcript

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

Okay. So we're live now. So the talk is being recorded from now. I'm just waiting for a few more participants to participants. This is me right in my project and 300 things that I'm saying um viewers to join and then we'll start pretty promptly. Um Great. I mean, while we're waiting, anyone who's in the chart, if you do wanna just got a message saying how far you are in all presentations. If you've started or if you've still got to do it, then feel free. Let's make sure that not to intimidate about asking questions as well. I put it as a poll. Oh, bro, did you have a mark? Like for S D T I like last year? Yeah, we did, we did, I think um Yeah, we did have like a practice one, a formative one. Did you guys have on organized as well? Yeah, we, we had, it was like five minutes for presentation there. So I didn't feel like it was quite representative. Yeah, it was uh it was sort of like a useful mark but also not really. But it's nice. I think it was more nice to just see what everyone has been doing for the last time. Yeah, definitely. And just getting a gist of kind of questions. But I remember, like, I tried to explain half my method and at that point, my method was so long because I hadn't, like, got my talk perfect yet. And also it was only five minutes. But I just didn't get very far. Like, my presentation at that point didn't make sense. Yeah. I just, I think with mine, I was like, I don't really see the point of um practicing the five minute one too much because it's only five minutes. Um Yeah, I think, I mean, I think I, I practiced, I think I might have just delivered five minutes of my 10 minute presentation if you know, I mean, and I was like, oh, no, I didn't run over. Can you give me feedback on this much? Yeah, definitely. Okay. We can start about now. So, um hello, everyone. This is the last VSC talk of the year and this is my last method talk I think um that I'm organizing. Um Thank you so much for coming and giving up your evening to see this talk, which is just about BSC project or presentations. It's a general talk. It's going to be delivered by surgeon who did um surgical design, technology and innovation BSC and did really well in his presentation. So, if you want to go ahead surgeon, um Yeah. So thank you everyone for coming and this shouldn't be too long to talk. To be honest, I think that all presentations is one of the things that you can really get a, like, you can really do well if you practice it and it can really help boost your B A C grade. So just to start off, the structure is going to be pretty straightforward. I'm just going, I thought like the most useful thing would be to just see my presentation or an example of a presentation. So I'll do that and then I will give you my top tips and then we can answer any questions you guys have any advice you guys want. So just going straight in with what my presentation was. So um I was looking at three D hand tracking for the assessment of medical students and suturing and not tying task. This was my title side basically. So surgical trainees are expected to learn a number of technical and non technical skills in this project. We focus on trainees, technical skills which are learned through continual assessment and feedback. Currently, these are provided by senior surgeons and a very time and resource intensive and they're incredibly prone to subjectivity which limits there used to trainees in order to reduce the subjectivity. Structured checklists have been created and the most commonly used one is the OSAGE which is the validated gold standard in objective assessment of skills. It's made up of a global score and task specific checklists but the issue with this method is it has the same issues. It's still manual, it's still object subjective and the markers may use the scales differently. When assessing participants, research has been carried out, looking into the objective, automated measures of technical skill and these will collect data, either using sensors or videos, they'll pick a point of interest, for example, your hands, your eyes or tools and then they'll analyze them using low level descriptive statistics or machine learning methods. The issue with the existing literature is all the data's being collected in different ways which limits the size of the databases they're often collected in ways that cannot be translated into clinical practice. And there's a huge focus on robotic surgery with nothing about open surgery. So we look to build a standardized reproducible method of collecting data to create our data set and investigate correlations. And we predicted that kinematics metrics will predict the essence score the current gold standard. So I'll just leave those for a second. You can have a read of our aims as well. So in terms of the setup, we used a wireless and Markelis hand tracking device called the leap motion controller and an iphone camera to build a standard data collection method. I designed and manufactured the custom data collection mount, which is completely reproducible. And then we use the associated tracking software and a custom see program which we developed in terms of the method we recruited 20 students each who completed 10 sutures and filled in question as before and after the task, we collected the hand tracking and video tracking data which was then analyzed and marked to give the following outcomes. So the kinematics metrics which are derived from the hand tracking and the osage scores and experienced surgeons did the overall global assessment using the OS at school and students did the yes, no checklist. And here visually, you can see what my method sort of looked like with the hand tracking, the sutures and general data collection. So looking at our main hypothesis, looking at the number of hand movements, we found that fewer hand movements shorter Parkland and times were all associated with better assess schools. So here's the hand movements, this is the total path length and this is the time taken. So here's the summary of the results. So the main things to take home are that better performance judged by our gold standard are correlated with fewer hand movements and shorter times taken. And we also demonstrated that using a head mounted wireless hand tracking with the leap motion controller can be used to calculate previously validated metrics which are used in the literature. So looking at this study, the strengths of it are that we've built a comprehensive data set of 200 sutures and looking at that summary of the research from earlier, we collected all of this data. Our results are consistent with the existing literature in the field, in terms of the studies, weaknesses and improvements, we need to consider that the sensor is not perfect. So sometimes the hands aren't being tracked either because they're out of the frame of the sensor or threaten obscured angle. And also the left hand pulled the suture through when people were tying it. So I had a greater tendency to be out of frame. So then I had a look at this to see that fewer hand movements were recorded when uh fewer hand movements recorded when the hand wasn't being tracked, which you would expect. And also that a longer path length was recorded when there was less time of the hand being tracked. And that's because the hand appears to move very quickly across the very big distances because you don't have those frames between in terms of um some other weaknesses. The suture length also affected the total path length. As as participants used the suture, the length would get shorter and shorter and they would have to move their hands less. The global oh SAT score had a moderate inter rater reliability where we would have hoped for a higher one. And this may be improved by more thorough training and using a panel of markers instead of separate markers. And we lacked data in the assad score extremes. So we can improve this by recruiting novices and professionals to try and flatten out that curve. We also only focused on one joint whereas we have data for all of the joints. So multi joint analysis could be done and also analysis of the relationship between the joints. When carrying out these tasks, we focus on low level descriptive statistics where machine learning can be applied alongside computer vision to our full data set. There's also some more kinematics metrics we could apply such as idle time, spatial temporal curvature and others using the literature. And we could use a Butterworth filter to clean up the data and smooth out those movements. So in terms of our next steps, we've already collected the kinetic data. As I said, we'll do this with multiple joints. We can also extract computer vision data from the videos which we haven't done and we can compare them to the osage escorts. So um with the kinetic data, as I said, we can do multi joint analysis and calculate more metrics. And all of these can be imported into a machine learning algorithm to predict the osage school and to predict feedback to give to the participants. We'd also like to test it across the performance curb to get those extremes with the novices and professionals and also see how learning impacts the score. NG. We'd like to test in longer procedures and also tests this intraoperatively when in simulated environments. So in terms of my reflection, the main point I've taken is that research is a multidisciplinary effort and there's a huge importance of networking. So this is the team when I started my project and this is the team when I finished. And this was all as a result of networking that I did within the college, getting, introducing different people to the project, getting them onboard, giving them excited about it and getting them to collaborate on it, to offer various different skills and build a really multidisciplinary project. My second reflection is that things will always take longer than you expect. And that's okay. So this is the gunshot I proposed when I submitted my ethics and this is the gunshot of what actually happened in my project. And what you can see is, I mean, everything was almost behind time. Um And that's just okay. That's something that happens in research and all projects really and you just have to be flexible about these things. So thank you for listening. And if anyone had any questions they could ask them now, so that's me snapping out of my BSC project mode. That was me delivering it. I know there was a couple of stumbles, but when I practiced it for my actual presentation, it was very, very smooth. I could present it all without even looking at the slides. That's how much I've practiced. So coming back to what we're talking about, so the oral presentations, hopefully that was useful just to see what they might look like when you're done, what a 10 minute presentation will look like um and get some inspiration about maybe how you layout slides and reflect. So, just on my sort of top tips, my advice, what I did was I had a look at your Mark scheme. So it's the same as mine, but I had a look at the new one. This is what I've taken from it and I hope that you're all aiming for exceptional because it is really achievable. So these are the main sort of things I've taken and I just pulled them out and separated them into different sections. So if we start off with the content, they want a scientific critique, they want a clear and concise summary, they want to see your key findings, an in depth critique that linked to discussion of future directions of your research. So these are the sort of this is a structure they've given you online. So a third of it should be the summary of main findings and that's basically your project up to results. Then a third should be a critique of your own project and future directions. So that's your problem, strengthen limitations and future directions, essentially your discussion section in your right up and then the reflection is a third. Um So when I I did surgery and we were told very much that reflection is a third that might be different this year or in your BSC, you might have been told something different. So follow what your course lead says, but bear in mind that the mark scheme really emphasizes reflection a lot. So don't neglect it as something you just stick on the end. It is a really important part of your project in terms of slides. So they want to clear concise summary of the project well designed in clear logical structure. So what I would say is in terms of your slides, figures aren't the same as when you do a right up in your right up. You need to make you sure your figures are complete. They need to have um keys or legends, they need to have lots of things on them and you really pack them full of things on a presentation. I would say, like every single figure you put in, you're trying to get across one point. So try and make sure that figure illustrates the point perfectly and clear any clutter from that. So one you don't want grid lines, you probably want as few lines possible. I mean, I went to the sort of minimal theme, but that's what I would suggest, but that's my personal opinion. Um And what you can see sort of in the number of hand movements I've used left and right is two different colors. I've made sure the axes are aligned. So when you look at the slide, hopefully it's as easy as possible to just navigate what the slides showing you. And then on the bottom of all my results, I had key results which are the same through all the slides. So if someone doesn't want to look at the graphs, they can just read them and they will get the same sort of information in terms of this lack of Osaka uh score extremes like red circles, you'll never see this in a written paper. But I put them on there to try and get across the point that look, there are gaps here. This is sort of all you need to see. So yeah, just be really, really thoughtful with your figures and put them on, get feedback from your friends or whoever you practice with. Look at the sides think is this convoluted, is this cluttered? Is it getting the point across? And if it's not rethink the figure, try and make it more aesthetically pleasing but also clear and focused in terms of um the slides also try and make them visual. I mean, I'm, I'm generally quite a visual person. I hope you'll see these from my slides, but I find that much easier to give presentations with visual slides. Um You know, don't just read what's on the slides, try and make it. So you're illustrating what's happening as you say it. Um I try as well to be very precise as to when I click. So when I say words, I click them so they come up at the same time. So people don't get confused by the mismatch and then the final thing, which was one of the best things I learned in um the surgical BSC actually was the more transition, which is, if you haven't used it, it's a great transition on Power Point. Basically, if you have things on a slide and if you do get that slide and move things around resize it, it will just like more fit together. So it looks so smooth, you can make really great slides with this. So I would definitely say check it out because like, it really helps, especially if you have lots of complex concepts to explain and trying to make your slides sort of cohesive. I would say other than more and making things appear or disappear, I wouldn't use any other effects because like it's wasting time and also it doesn't really add that much in terms of the reflection. So I hope all of you guys know how to reflect. I mean, I'm sure you do, but I've put some prompts up here just to think about what the thing that they want from you is. They don't want loads of random reflections like, oh, I've learned how to be a good researcher or just like, yeah, really? They don't want just a list of reflections. They want you to come up with something that you think you've learned. Like, how have you changed? How has BSC helped you? And like, if you to pick up your project again from the beginning, what would you do differently? What did you learn? And they want to know, like, what is it, how to impact your project? How is it going to impact you in the future? And the best way of doing this is sort of, you just got to reflect, like, I don't know how to explain that any better. You've just got to think about it, really take a bit of time, think about how these things feed in and how it's going to affect you in future and then try and deliver that as effectively as possible. I went with two reflections. Um I would say probably three maximum. I think two is a good number one. If you're really going in detail in terms of communication, I mean, it's a presentation practice is key, like practice, practice, practice, practice, you cannot practice enough. So I mean, their description of a good presentation is masterful delivered authority authoritatively fluently in an engaging manner and in time. So practices key, I practice online with people. I practiced in person. I booked a room and stood up because that's really important standing in a way that you will be doing when you deliver your presentation. And people often like this, no one to practice with practice with other BSC students. You've never had your project or doing the same BSC or different ones. Practice with other phd students who might be supervising projects, but maybe like around the offices, practice with your supervisors if there's other supervisors around price with them, and I would say like record. Your practice is maybe not the first couple but record them like almost standing ones. I recorded my phone. Actually the other day I deleted all of them because they're wasting some storage on my phone. But watch those videos back because you see things about your body language about like where you slow down where you're not confident all of these things, which is super, super useful and you can, if you watch it and recognize it, you can improve it. And these things feel small. But when the markers see you like just your confidence and your delivery will make such a difference to what school they give you. And then the other thing is on power point. If if any of you guys have seen this before, it's called rehearse with coach. So it's under slide show it as an option called rehearse with coach. Basically, you can click it, deliver your power point, it will listen to what you say, it will listen to your pace, your tone, it will say, you know, your voice has been too flat. You need to make it more animated or something like this and it's actually really useful. Um I know everyone loves a I but this is actually a pretty cool use of it. And again, the feedback you get try and look at content very important, but also your voice, your body language, all of these nonverbal things that will give the impression that the markets are going to be looking at and seeing if they want to score you highly because exceptional is what we're aiming for here, right? And then um oh I just put in that Morph. So the practice is key moving, that's what Morph looks like. And then in terms of questions they ask for your exceptional ability to answer questions. So again, practices key and everyone you practice with, get them to ask you questions. Even if you think they're bad questions, there's still questions you still have to practice answering them. And I know in surgery we had a formative presentation. I know that's already gone. But I would say like note down any questions you thought were like, oh, that was interesting or maybe they'll ask me that. And then the other thing is you cannot over prepare the questions like these are some of the slides I had looking at. If they were to ask me, how do we create the feedback in future or what do they do in robotic surgery or what is the Butterworth filter? You know, one of the findings I had was reduced time, gives you a better score. So does they could have asked me, does that mean that faster surgeons are better surgeons? And they had a whole explanation of that looking at the literature as well. So have these prep slides and know where they are. So then if someone asks you, you can be like, okay let me just exit this and open the slide, open it up and explain it with a visual thing in the background. Don't rely on them to be able to answer the question. But just so the audience can look at it and have, you know, like a better answer, like a visual answer I would say as well as you talking and explaining it. And then another thing to take on this is I've got a slide here on inter rater reliability. That's the, that's one of the stats I use, I would say for your project. No, all of the statistical tests you do like the full name, why you chose that test roughly how it works. Like you don't need to do a formula. But if it's I put it in S P S S, this is what I did, then you put it in. But if they say, why did you pick it? You need to know if your data was parametrical, non parametric and all of this kind of sample size. So they could ask you like, why did you use that test? And so just have an answer or have a slide prep to remind yourself of the answer. Um That was a question that came up. I think it was a question when they didn't have questions to ask. They were like, let's just ask a lot of statistical tests. So I know that was a lot of information. Um But that was basically everything I had, it's not rocket science giving these presentations. I would say, I think practice is the main thing. And I mean, yeah, practices, just the main thing, practice, practice, practice. So I'm keen, I know you guys might be at different stages for these presentations. Um If you guys have any questions, super keen to answer them. Now, if you think of them later, obviously you can email me. That's fine. But yeah, please do just feel free to ask any questions in the chair and whilst you guys type those up, if you have any um I believe a feedback will be put in the chart. And also you'll get a notification when you exit this call and you should get emailed it after I beg of you. Please fill in the feedback. It's super useful for me later on in my sort of medical training. And also it means that I can help improve this for any future talks I give, which is really useful for me. So, yeah, thank you everyone for listening. I know it was quite a short one, but all presentation isn't the biggest asking BSC. If you do have any questions, please just drop them in the chat or email me. Um I'll stick around for like 10 or so minutes if you guys have any questions. No worries, if not have a great um Thursday evening. Um Okay. So what did I struggle with when I was practicing presentation? I think at the beginning, I thought, I mean, I think my project is quite complicated but I think everyone thinks that project is complicated. So I think trying to explain it, I was really over explaining what people needed to know for the project. And I realized that there's only certain things you need to know, to understand what I did and understand why it's relevant. So I think cutting that down was difficult. And then for me, I mean, I'd spent a year sad desk. So I'd say body language was a huge thing. I was like super slouching during the presentation. Um So that was, that was really handy in terms of standing up and presenting in front of people. That was the general impression I got. Um And I think results was a big problem for me. Like at the beginning, I used to have a lot of slides for my results which were really complicated and hard to follow. And I tried to streamline that, like I said, with the aligned graphs and the summer of key points and stuff. So you just pick up on the bits that people are like, why did you tell me all of that? Or I didn't understand what you said and then you can try and focus in and improve them. Yeah. So this is the thing with them. So the question is, how would you talk about results in your presentation if they aren't significant? But you still can draw valid conclusions. So I think you guys might have this with projects as well. Everyone thinks that they're going to cure cancer and the PRC project and then a lot of nonsense, uh significant results come out. So the main thing is just not to overstate your findings. Um So you can talk about them, you can talk about your results, but just don't overstate, you know, relationships that don't necessarily exist. You can say like this is what we found. This is what we might do, but this is what we found. Um I think it's really easy to see like our is zero point 01 or something uh are, is no 10.9 or something like this. And just be like, because P is less than 0.5, like everything super significant and we've found this amazing correlation, don't overstate your results. And you'll see like in papers when you read them, when is the right time to um say like this is a very strong um this is a very strong correlation or this is a weak correlation or there's no correlation. Um Just, yeah, you can still present results of their nonsignificant because this isn't, you're not publishing these papers, these are your BSC project to show the results that you've found. No worries. Does anyone have any more questions? Well, it was just me, wasn't it? I had to pressing questions. Um Yeah, please go ahead and ask your questions otherwise I will wrap it up because agent is a busy fifth year. Yeah, if you don't want to ask them now as well, just feel free to email. Uh Well, like I'll do my best to get back to you as soon as possible. Thank you for coming. Anyways. Thank you so much, Sergeant. That was brilliant. It was really nice to see your presentation as well. Like the slides looked so nice. I was looking at them. Um And I can, I can see why like you scored highly because it is just so good and your projects also was really good. Um It was that complicated. It was tough, but it was really, it was very rewarding like I learned a lot, which is good. But I think like all of your presentations will look super slick once you've practiced and once you've like, I got a report when you've got a draft submitted and you have time to focus on your presentation and just wake up and be like, let me practice my presentation 20 type today. It gives you a bit more like space of mind and just yeah, clarity of mind to just go through it and think about it and really improve it. Amazing. All right, I'm going to gather that. No one's got any more questions. Please fill in the feedback. You'll probably get an email um from medal asking you to provide feedback anyways. But please please do. It helps us so much and it helps a Gyn as well. Um But if that's everything, I think we'll wrap up. Thanks. All right, bye everyone.