Jillian R Gunther1, Stanley L Liauw2, Seungtaek Choi3, Abdallah S R Mohamed4, Nikhil G Thaker3, Clifton D Fuller3, Christopher J Stepaniak2, Prajnan Das3, Daniel W Golden2. 1. Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Electronic address: jgunther@mdanderson.org. 2. Department of Radiation and Cellular Oncology, The University of Chicago, Chicago, Illinois. 3. Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. 4. Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Radiation and Cellular Oncology, The University of Chicago, Chicago, Illinois; Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, University of Alexandria, Alexandria, Egypt.
Abstract
PURPOSE/ OBJECTIVE: Radiation oncology trainees frequently learn to contour through clinical experience and lectures. A hands-on contouring module was developed to teach delineation of the postoperative prostate clinical target volume (CTV) and improve contouring accuracy. METHODS: Medical students independently contoured a prostate fossa CTV before and after receiving educational materials and live instruction detailing the RTOG approach to contouring this CTV. Metrics for volume overlap and surface distance (Dice similarity coefficient, Hausdorff distance (HD), and mean distance) determined discordance between student and consensus contours. An evaluation assessed perception of session efficacy (1 = "not at all" to 5 = "extremely"; reported as median[interquartile range]). Non-parametric statistical tests were used. RESULTS: Twenty-four students at two institutions completed the module, and 21 completed the evaluation (88% response). The content was rated as "quite" important (4[3.5-5]). The module improved comfort contouring a prostate fossa (pre 1[1-2] vs. post 4[3-4], p<.01), ability to find references (pre 2[1-3] vs. post 4[3.5-4], p<0.01), knowledge of CT prostate/pelvis anatomy (pre 2[1.5-3] vs. post 3[3-4], p<.01), and ability to use contouring software tools (pre 2[2-3.5] vs. post 3[3-4], p=.01). After intervention, mean DSC increased (0.29 to 0.68, p<0.01) and HD and mean distance both decreased, respectively (42.8 to 30.0, p<.01; 11.5 to 1.9, p<.01). CONCLUSIONS: A hands-on module to teach CTV delineation to medical students was developed and implemented. Student and expert contours exhibited near "excellent agreement" (as defined in the literature) after intervention. Additional modules to teach target delineation to all educational levels can be developed using this model.
PURPOSE/ OBJECTIVE: Radiation oncology trainees frequently learn to contour through clinical experience and lectures. A hands-on contouring module was developed to teach delineation of the postoperative prostate clinical target volume (CTV) and improve contouring accuracy. METHODS: Medical students independently contoured a prostate fossa CTV before and after receiving educational materials and live instruction detailing the RTOG approach to contouring this CTV. Metrics for volume overlap and surface distance (Dice similarity coefficient, Hausdorff distance (HD), and mean distance) determined discordance between student and consensus contours. An evaluation assessed perception of session efficacy (1 = "not at all" to 5 = "extremely"; reported as median[interquartile range]). Non-parametric statistical tests were used. RESULTS: Twenty-four students at two institutions completed the module, and 21 completed the evaluation (88% response). The content was rated as "quite" important (4[3.5-5]). The module improved comfort contouring a prostate fossa (pre 1[1-2] vs. post 4[3-4], p<.01), ability to find references (pre 2[1-3] vs. post 4[3.5-4], p<0.01), knowledge of CT prostate/pelvis anatomy (pre 2[1.5-3] vs. post 3[3-4], p<.01), and ability to use contouring software tools (pre 2[2-3.5] vs. post 3[3-4], p=.01). After intervention, mean DSC increased (0.29 to 0.68, p<0.01) and HD and mean distance both decreased, respectively (42.8 to 30.0, p<.01; 11.5 to 1.9, p<.01). CONCLUSIONS: A hands-on module to teach CTV delineation to medical students was developed and implemented. Student and expert contours exhibited near "excellent agreement" (as defined in the literature) after intervention. Additional modules to teach target delineation to all educational levels can be developed using this model.
Authors: Kirsty L Wiltshire; Kristy K Brock; Masoom A Haider; Daniel Zwahlen; Vickie Kong; Elisa Chan; Joanne Moseley; Andrew Bayley; Charles Catton; Peter W M Chung; Mary Gospodarowicz; Michael Milosevic; Andrew Kneebone; Padraig Warde; Cynthia Ménard Journal: Int J Radiat Oncol Biol Phys Date: 2007-11-15 Impact factor: 7.038
Authors: Kolawole Oluwole Babalola; Brian Patenaude; Paul Aljabar; Julia Schnabel; David Kennedy; William Crum; Stephen Smith; Tim Cootes; Mark Jenkinson; Daniel Rueckert Journal: Neuroimage Date: 2009-05-20 Impact factor: 6.556
Authors: Paul A Harris; Robert Taylor; Robert Thielke; Jonathon Payne; Nathaniel Gonzalez; Jose G Conde Journal: J Biomed Inform Date: 2008-09-30 Impact factor: 6.317
Authors: Vikrant S Jagadeesan; David R Raleigh; Matthew Koshy; Andrew R Howard; Steven J Chmura; Daniel W Golden Journal: Int J Radiat Oncol Biol Phys Date: 2014-01-01 Impact factor: 7.038
Authors: Jeff M Michalski; Colleen Lawton; Issam El Naqa; Mark Ritter; Elizabeth O'Meara; Michael J Seider; W Robert Lee; Seth A Rosenthal; Thomas Pisansky; Charles Catton; Richard K Valicenti; Anthony L Zietman; Walter R Bosch; Howard Sandler; Mark K Buyyounouski; Cynthia Ménard Journal: Int J Radiat Oncol Biol Phys Date: 2009-04-23 Impact factor: 7.038
Authors: Daniel W Golden; Steve Braunstein; Rachel B Jimenez; Pranshu Mohindra; Alexander Spektor; Jason C Ye Journal: J Am Coll Radiol Date: 2015-09-26 Impact factor: 5.532
Authors: Michael K Rooney; Fan Zhu; Erin F Gillespie; Jillian R Gunther; Ryan P McKillip; Matthew Lineberry; Ara Tekian; Daniel W Golden Journal: Int J Radiat Oncol Biol Phys Date: 2018-06-06 Impact factor: 7.038
Authors: Cameron W Swanick; Katherine O Castle; Sastry Vedam; Mark F Munsell; Lehendrick M Turner; Gaiane M Rauch; Anuja Jhingran; Patricia J Eifel; Ann H Klopp Journal: Int J Radiat Oncol Biol Phys Date: 2016-07-30 Impact factor: 7.038
Authors: David M Rosenberg; Steve E Braunstein; Emma C Fields; Erin F Gillespie; Jillian R Gunther; Rachel B Jimenez; Raphael L Yechieli; Daniel W Golden Journal: J Cancer Educ Date: 2021-03-16 Impact factor: 1.771
Authors: Mustafa Abugideiri; Eduard Schreibmann; Jeffrey Switchenko; Mark W McDonald; Jonathan J Beitler; Walter J Curran; Deborah Bruner; Pretesh Patel; Wondemagegnhu Tigeneh; Miressa Mijena; Sibo Tian; Anees Dhabaan; Natia Esiashvili; Tian Liu; Arif N Ali Journal: J Glob Oncol Date: 2019-05