用于前列腺癌立体定向体部放疗的计算机断层扫描尿道造影与磁共振成像的尿道轮廓勾画
Urethra contouring on computed tomography urethrogram versus magnetic resonance imaging for stereotactic body radiotherapy in prostate cancer.
作者信息
Ong Wee Loon, Allan Hupman M, Davidson Melanie, Ruschin Mark, Detsky Jay, Liu Stanley, Vesprini Danny, Loblaw Andrew
机构信息
Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.
Department of Radiation Oncology, University of Toronto, Canada.
出版信息
Clin Transl Radiat Oncol. 2023 Dec 30;45:100722. doi: 10.1016/j.ctro.2023.100722. eCollection 2024 Mar.
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.
在前列腺立体定向体部放疗中，准确的尿道轮廓勾画至关重要。我们比较了CT尿道造影和T2加权MRI上的尿道轮廓勾画。评估了骰子相似系数、杰卡德指数、豪斯多夫距离和平均一致距离。与T2加权MRI相比，所有这四个指标均表明CT尿道造影上的尿道轮廓勾画具有更好的一致性和更小的变异性。
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