Title
Automated segmentations of skin, soft-tissue, and skeleton from torso CT images
Abstract
We have been developing, a computer-aided diagnosis (CAD) scheme for automatically recognizing human tissue and organ regions from high-resolution torso CT images. We show some initial results for extracting skin, soft-tissue and skeleton regions. 139 patient cases of torso CT images (male: 92, female: 47, age: 12-88) were used in this study. Each case was imaged with a common protocol (120kV/320mA) and covered the whole torso with 0.63 (mm) isotopic spatial resolution and 12 (bits) density resolution. A gray-level thresholding based procedure was applied to separate the human body from background. The density and distance features to body surface were used to determine skin, and separate soft-tissue from the other regions. A 3-D region growing based method was used to extract skeleton. We applied this system to 139 cases and found that the skin, soft-tissue and skeleton regions were recognized correctly for 93% patient cases. The accuracy of segmentation results was acceptable by evaluating the results slice by slice. This scheme will be included in a CAD system for detecting and diagnosing the abnormal lesions in multi-slice torso CT images.
Year
DOI
Venue
2004
10.1117/12.534843
Proceedings of SPIE
Keywords
Field
DocType
mult-slice torso CT images,3-D image processing,organ region segmentations,CAD
Torso,Computer vision,Segmentation,Computer science,Computer-aided diagnosis,Image processing,Region growing,Artificial intelligence,Thresholding,Skeleton (computer programming),Image resolution
Conference
Volume
ISSN
Citations 
5370
0277-786X
3
PageRank 
References 
Authors
1.89
3
6
Name
Order
Citations
PageRank
Xiangrong Zhou132545.53
Takeshi Hara263979.10
Hiroshi Fujita311824.65
Ryujiro Yokoyama412318.40
Takuji Kiryu5414.55
Hiroaki Hoshi610618.21