Authors: | Veeraraghavan, H.; Fehr, D.; Schmidtlein, R.; Hwang, S.; Deasy, J. O. |
Title: | Automatic bone and marrow extraction from dual energy ct through svm margin-based multi-material decomposition model selection |
Conference Title: | 5th MLMI 2014 International Workshop held in conjunction with MICCAI 2014 |
Abstract: | In this work, we present a fully-automatic approach for segmenting bone and marrow structures from dual energy CT (DECT) images. The images are represented using a multi-material decomposition model (MMD) computed from a triplet of physical materials at two different energy attenuation levels. We employ support vector machine learning to select the most relevant MMD model for the anatomical structure of interest so that highly accurate segmentation of the said structures can be achieved. We evaluated our approach for segmenting bone and marrow structures with varying amounts of metastatic bone disease on multiple longitudinal follow up patient scans. Our approach shows consistent and robust segmentation despite changes in bone density due to disease progression, high-density contrast material uptake in neighboring tissue, and significant metal artifacts. |
Keywords: | computerized tomography; disease progression; artificial intelligence; bone; image segmentation; anatomical structures; learning systems; automatic approaches; contrast material; energy attenuation; highly accurate; metal artifacts; robust segmentation |
Journal Title | Lecture Notes in Computer Science |
Volume: | 8679 |
Conference Dates: | 2014 Sep 14 |
Conference Location: | Boston, MA |
ISBN: | 0302-9743 |
Publisher: | Springer |
Date Published: | 2014-01-01 |
Start Page: | 149 |
End Page: | 156 |
Language: | English |
PROVIDER: | scopus |
DOI: | 10.1007/978-3-319-10581-9_19 |
DOI/URL: | |
Notes: | Chapter in "Machine Learning in Medical Imaging" (ISBN: 978-3-319-10580-2) -- Export Date: 2 March 2015 -- Source: Scopus |