Optimal section spacing in single-detector helical CT
J A Brink1, G Wang, E G McFarland
1Department of Diagnostic Radiology, Yale University School of Medicine, 333 Cedar St, 2-332 SP, New Haven, CT 06520, USA. james.brink@yale.edu
Abstract:
To define the section spacing that maximizes longitudinal resolution without needless section overlap, the optimal percentage of overlap was computed theoretically and expressed as a constant relative to the effective section thickness. For imaging applications that require maximal longitudinal resolution, single-detector helical computed tomographic images should be reconstructed with at least 60% overlap relative to the effective section thickness.
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