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A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
Published on: March 21, 2025
230
Urethra contouring on computed tomography urethrogram versus magnetic resonance imaging for stereotactic body
Wee Loon Ong1,2,3, M Allan Hupman1,2, Melanie Davidson1,2
1Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.
Clinical and Translational Radiation Oncology
|January 18, 2024
Abstract:
Accurate urethra contouring is critical in prostate SBRT. We compared urethra contouring on CT-urethrogram and T2-weighted MRI. The dice similarity coefficient, Jaccard index, Hausdorff distance and mean distance to agreement were evaluated. All four metrics indicate better agreement and less variability in urethra contouring on CT-urethrogram, compared to T2-weighted MRI.

