TY - GEN
T1 - Circular cone-beam micro-CT for small animal imaging with truncated data
AU - Cho, Seungryong
AU - Yu, Lifeng
AU - Pelizzari, Charles A.
AU - Pan, Xiaochuan
PY - 2006/1/1
Y1 - 2006/1/1
N2 - We applied a backprojection filtration (BPF) algorithm to small animal imaging with transversely truncated projection data acquired by our prototype circular cone-beam micro-CT system. For comparison of the reconstructed images with and without truncation data, we used a mouse as the subject and scanned whole mouse without data truncation. One of the legs was chosen as a region-of-interest (ROI), and data truncation was manually made by chopping off other projection area than ROI projection from the data at each view. Feldkamp-Davis-Kress (FDK) algorithm was also used to reconstruct the image from both nontruncated and truncated cone-beam data for comparison. The BPF algorithm successfully reconstructed the ROI image from truncated data with comparable image quality of that reconstructed from nontruncated data, while FDK algorithm reconstructed the ROI image with typical truncation artifacts.
AB - We applied a backprojection filtration (BPF) algorithm to small animal imaging with transversely truncated projection data acquired by our prototype circular cone-beam micro-CT system. For comparison of the reconstructed images with and without truncation data, we used a mouse as the subject and scanned whole mouse without data truncation. One of the legs was chosen as a region-of-interest (ROI), and data truncation was manually made by chopping off other projection area than ROI projection from the data at each view. Feldkamp-Davis-Kress (FDK) algorithm was also used to reconstruct the image from both nontruncated and truncated cone-beam data for comparison. The BPF algorithm successfully reconstructed the ROI image from truncated data with comparable image quality of that reconstructed from nontruncated data, while FDK algorithm reconstructed the ROI image with typical truncation artifacts.
KW - BPF
KW - Cone-beam CT
KW - Small animal imaging
UR - http://www.scopus.com/inward/record.url?scp=38549097599&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38549097599&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2006.356480
DO - 10.1109/NSSMIC.2006.356480
M3 - Conference contribution
SN - 1424405610
SN - 9781424405619
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 2889
EP - 2891
BT - 2006 IEEE Nuclear Science Symposium - Conference Record
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD
Y2 - 29 October 2006 through 4 November 2006
ER -