کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
443973 | 692836 | 2011 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Segmenting the prostate and rectum in CT imagery using anatomical constraints
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
گرافیک کامپیوتری و طراحی به کمک کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Segmenting the prostate and rectum in CT imagery using anatomical constraints Segmenting the prostate and rectum in CT imagery using anatomical constraints](/preview/png/443973.png)
چکیده انگلیسی
The automatic segmentation of the prostate and rectum from 3D computed tomography (CT) images is still a challenging problem, and is critical for image-guided therapy applications. We present a new, automatic segmentation algorithm based on deformable organ models built from previously segmented training data. The major contributions of this work are a new segmentation cost function based on a Bayesian framework that incorporates anatomical constraints from surrounding bones and a new appearance model that learns a nonparametric distribution of the intensity histograms inside and outside organ contours. We report segmentation results on 185 datasets of the prostate site, demonstrating improved performance over previous models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Medical Image Analysis - Volume 15, Issue 1, February 2011, Pages 1–11
Journal: Medical Image Analysis - Volume 15, Issue 1, February 2011, Pages 1–11
نویسندگان
Siqi Chen, D. Michael Lovelock, Richard J. Radke,