A Computer Assisted Surgical Trainer for Transurethral Resection of the Prostate

Kumar, P.V.S.; Gomes, M.P.S.F.; Davies, Brian; Timoney, A.G.

doi:10.1097/00005392-200211000-00051

Cited by 5 publications

(11 citation statements)

References 6 publications

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“…It also demonstrated that this model had the ability to discriminate level of skills and experience (8,9,12,13,22,26,31) by video analysing of the performance between participants and experts. OCHRA has been developed and validated in a wide range of surgical specialties, especially in endoscopic surgery over the last decade (27)(28)(29) .The strength of the analysis carried out in this study was that video recordings were coded and analysed blindly by an OCHRA expert and an experienced consultant urologist.…”

Section: Discussionmentioning

confidence: 90%

“…Despite all the merits of virtual reality simulators for endoscopic skills training in a number of surgical specialties including TURP (8)(9)(10)(11)(12)22) , animal tissue models were recently proven to be better and the preferred method for surgical trainees to learn technical skills in endoscopic surgery when a suitable organ or tissue can be found to exist in an animal (15,16) .…”

Section: Discussionmentioning

confidence: 99%

“…It cost about £80 preparing such a model. Thus, the cost was minimal compared to other simulators (8)(9)(10)(11)(12)(13)(20)(21)(22) .…”

Section: Discussionmentioning

confidence: 99%

“…Virtual reality simulators have been proven a valid method for training in TURP and a number of systems have been developed and used for this purpose (8)(9)(10)(11) . The advantages of virtual reality simulators are that they are able to simulate prostates of different size, shape, and grade of difficulty.…”

Section: Introductionmentioning

confidence: 99%

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Development and Validation of a Novel and Cost-Effective Animal Tissue Model for Training Transurethral Resection of the Prostate

Hou

Ross

Tait

et al. 2017

Journal of Surgical Education

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

“…It cost about £80 preparing such a model. Thus, the cost was minimal compared to other simulators (8)(9)(10)(11)(12)(13)(20)(21)(22) .…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development and Validation of a Novel and Cost-Effective Animal Tissue Model for Training Transurethral Resection of the Prostate

Hou

Ross

Tait

et al. 2017

Journal of Surgical Education

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“…Nevertheless, the literature appears to be short of reports on the dedicated development of anthropomorphic urethra phantoms. There have been a few related designs of bladder and prostate phantoms, and they are mainly intended for clinical training, surgical navigation, and imaging research. Yet, most existing phantoms of the urethra have merely represented the urinary tract as a straight cylindrical tube without consideration of the deformability and the key anatomical features of the urethra .…”

Section: Introductionmentioning

confidence: 99%

Deformable phantoms of the prostatic urinary tract for urodynamic investigations

Ishii

Nahas

et al. 2019

Medical Physics

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Purpose: Assessment of urethral dynamics is clinically regarded to be important in analyzing the functional impact of pathological features like urethral obstruction, albeit it is difficult to perform directly in vivo. To facilitate such an assessment, urethra phantoms may serve well as investigative tools by reconstructing urethral dynamics based on anthropomorphic factors. Here, our aim is to design a new class of anatomically realistic, deformable urethra phantoms that can simulate the geometric, mechanical, and hydrodynamic characteristics of the male prostatic urethra. Methods: A new lost-core tube casting protocol was devised. It first involved the drafting of urethra geometry in computer-aided design software. Next, 3D printing was used to fabricate the urethra geometry and an outer mold. These parts were then used to cast a urinary tract using a polyvinyl alcohol (PVA)-based material (with 26.6 AE 4.0 kPa Young's elastic modulus). After forming a surrounding tissue-mimicking slab using an agar-gelatin mixture (with 17.4 AE 3.4 kPa Young's modulus), the completed urethra phantom was connected to a flow circuit that simulates voiding. To assess the fabricated phantoms' morphology, ultrasound imaging was performed over different planes. Also, color Doppler imaging was performed to visualize the flow profile within the urinary tract. Results: Deformable phantoms were devised for the normal urethra and a diseased urethra with obstruction due to benign prostatic hyperplasia (BPH). During voiding, the short-axis lumen diameter at the verumontanum of the BPH-featured phantom (0.91 AE 0.08 mm) was significantly smaller than that for the normal phantom (2.49 AE 0.20 mm). Also, the maximum flow velocity of the BPHfeatured phantom (59.3 AE 5.8 cm/s; without Doppler angle correction) was found to be higher than that of the normal phantom (22.7 AE 9.0 cm/s). Conclusion: The fabricated phantoms were effective in simulating urethra deformation resulting from urine passage during voiding. They can be used for mechanistic studies of urethral dynamics and for the testing of urodynamic diagnostic techniques in urology.

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Endoscopic surgical simulation using low-fidelity and virtual reality transurethral resection simulators in urology simulation boot camp course: trainees feedback assessment study

et al. 2021

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Objectives The objective of our study was to study trainees' feedback and rating of models for training transurethral resection of bladder lesions (TURBT) and prostate (TURP) during simulation. Methods The study was performed during the ''Transurethral resection (TUR) module" at the boot camp held in 2019. Prior to the course, all trainees were required to evaluate their experience in performing TURBT and TURP procedures. Trainees simulated resection on two different models; low-fidelity tissue model (Samed, GmBH, Dresden, Germany) and virtual reality simulator (TURPMentor, 3D Systems, Littleton, US). Following the completion of the module, trainees completed a questionnaire using a 5-point Likert scale to evaluate their assessment of the models for surgical training. Results In total, 174 simulation assessments were performed by 56 trainees(Samed Bladder-40, Prostate-45, TURPMentor Bladder-51, Prostate-37). All trainees reported that they had performed < 50 TUR procedures. The Samed model median scores were for appearance (4/5), texture (5/5), feel (5/5) and conductibility (5/5). The TURPMentor median score was for appearance (4/5), texture and feel (4/5) and conductibility (4/5). The most common criticism of the Samed model was that it failed to mimic bleeding. In contrast, trainees felt that the TURPMentor haptic feedback was inadequate to allow for close resection and did not calibrate movements accurately. Conclusions Our results demonstrate that both forms of simulators (low-fidelity and virtual reality) were rated highly by urology trainees and improve their confidence in performing transurethral resection and in fact complement each other in providing lower tract endoscopic resection simulation.

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A Computer Assisted Surgical Trainer for Transurethral Resection of the Prostate

Abstract: This system can exist as a stand-alone training aid after the problems have been addressed. The potential application of an in vivo system for routine transurethral prostate resection has great implications for training and quality control.

Cited by 5 publications

References 6 publications

Development and Validation of a Novel and Cost-Effective Animal Tissue Model for Training Transurethral Resection of the Prostate

Development and Validation of a Novel and Cost-Effective Animal Tissue Model for Training Transurethral Resection of the Prostate

Deformable phantoms of the prostatic urinary tract for urodynamic investigations

Endoscopic surgical simulation using low-fidelity and virtual reality transurethral resection simulators in urology simulation boot camp course: trainees feedback assessment study

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