Improvement of efficiency and flexibility in multi-slice helical CT

One of the main aspects in computed tomography (CT) development is to make CT rapidly scan a large longitudinal volume with high z -axis resolution. The combination of helical scanning with multi-slice CT is a promising approach. Image reconstruction in multi-slice CT becomes, therefore, the major c...

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Bibliographic Details
Published in:Shanghai jiao tong da xue xue bao Vol. 13; no. 4; pp. 408 - 412
Main Authors: Sun, Wen-wu, Chen, Si-ping, Zhuang, Tian-ge
Format: Journal Article
Language:English
Published: Heidelberg Shanghai Jiaotong University Press 01.08.2008
Subjects:
Architecture
Computer Science
Electrical Engineering
Engineering
Life Sciences
Materials Science
R 197.39
rebinning
helical interpolation
multi-slice computed tomography
filter interpolation
ISSN:1007-1172, 1995-8188
Online Access:Get full text
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Summary:One of the main aspects in computed tomography (CT) development is to make CT rapidly scan a large longitudinal volume with high z -axis resolution. The combination of helical scanning with multi-slice CT is a promising approach. Image reconstruction in multi-slice CT becomes, therefore, the major challenge. Known algorithms need to derive the complementary data or work only for certain range of pitches. A reconstruction algorithm was presented that works with the direct data as well as arbitrary pitches. Filter interpolation based on the proposed method was implemented easy. The results of computer simulations under kinds of conditions for four-slice CT were presented. The proposed method can obtain higher efficiency than the conventional method.
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content type line 23
ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-008-0408-x