Comparison of atlas-based auto-segmentation accuracy for radiotherapy in prostate cancer

Atlas-based auto-segmentation (ABS) procedure used in radiotherapy can be classified into two groups, one using one atlas per patient (sSM) and the other using multiple atlases (sMM). This study evaluated auto-contouring accuracy and contouring time in patients with prostate cancer using the two pro...

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Detalles Bibliográficos
Autores principales: Aoyama, Takahiro, Shimizu, Hidetoshi, Kitagawa, Tomoki, Yokoi, Kazushi, Koide, Yutaro, Tachibana, Hiroyuki, Suzuki, Kojiro, Kodaira, Takeshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Technical Note
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8397888/
https://www.ncbi.nlm.nih.gov/pubmed/34485717
http://dx.doi.org/10.1016/j.phro.2021.08.002
Descripción
Sumario:Atlas-based auto-segmentation (ABS) procedure used in radiotherapy can be classified into two groups, one using one atlas per patient (sSM) and the other using multiple atlases (sMM). This study evaluated auto-contouring accuracy and contouring time in patients with prostate cancer using the two procedures. The Dice similarity coefficient of sMM was significantly better than that of sSM (prostate [median, 0.81 (range, 0.66–0.91) vs. 0.64 (0.27–0.71), p < 0.01], seminal vesicles [0.49 (0.31–0.80) vs. 0.18 (0.01–0.60), p < 0.05], and rectum [0.81 (0.37–0.91) vs. 0.57 (0.31–0.77), p < 0.01]). The median contouring times were 2.6 (sMM) and 1.3 min (sSM).

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