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A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
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A Prostate Fossa Contouring Instructional Module: Implementation and Evaluation.

Jillian R Gunther1, Stanley L Liauw2, Seungtaek Choi1

  • 1Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.

Journal of the American College of Radiology : JACR
|May 24, 2016
PubMed
Summary
This summary is machine-generated.

A hands-on module significantly improved radiation oncology trainees' accuracy in contouring the prostate clinical target volume (CTV). This training enhanced contouring skills and achieved near-excellent agreement with expert contours.

Keywords:
Medical educationcontouringprostate fossaradiation oncology

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Area of Science:

  • Medical Education
  • Radiation Oncology
  • Medical Imaging

Background:

  • Radiation oncology trainees traditionally learn contouring through clinical experience and lectures.
  • Accurate delineation of the clinical target volume (CTV) is crucial for effective radiation therapy.
  • Standardized, hands-on training can enhance learning and improve contouring accuracy.

Purpose of the Study:

  • To develop and evaluate a hands-on contouring module for teaching the delineation of the postoperative prostate clinical target volume (CTV).
  • To improve the accuracy of CTV contouring among radiation oncology trainees.

Main Methods:

  • Medical students contoured a prostate fossa CTV before and after receiving educational materials and live instruction.
  • Contouring accuracy was assessed using metrics like Dice similarity coefficient (DSC) and Hausdorff distance (HD) compared to consensus contours.
  • Student perceptions of the module's efficacy were evaluated using a Likert scale.

Main Results:

  • The module significantly improved students' comfort, ability to find references, anatomical knowledge, and software proficiency.
  • Post-intervention, the mean DSC increased from 0.29 to 0.68 (p<0.01).
  • Hausdorff distance and mean distance significantly decreased after the training, indicating improved accuracy.

Conclusions:

  • A hands-on module effectively taught CTV delineation to medical students.
  • Post-intervention, student and expert contours demonstrated near "excellent agreement."
  • This model can be adapted to develop further target delineation modules for various educational levels.