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Proceedings Paper

Evaluation Of Multiplanar Imaging Capabilities Of Four Current Computed Tomography (CT) Scanners
Author(s): G. Allan Johnson; Melvyn Korobkin; E. Ralph Heinz
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Paper Abstract

Four state of the art CT scanners were evaluated with respect to optimal techniques for multiplanar imaging. The four scanners were a G. E. 8800, Pfizer 0450, Picker Synerview 600 and Siemens Somatom 2. Patient movement artefacts can be minimized by choice of techniques that provide rapid data acquisition. By deferring reconstruction, using batch mode acquisition, suppressing screen display and operator interaction and minimizing tube loading as many as 33 thin slices can be acquired in < 8 minutes. This rapid scan technique makes use of the narrow collimation over a large (5.0 cm) distance quite reasonable. A high contrast star resolution phantom was scanned using these rapid scan techniques. The multiplanar images produced from narrow slices are much higher resolution than those created with more widely collimated slices. A low contrast (2.5%) resolution object scanned with the same rapid acquisition method shows improved resolution for the narrow collimation even in the presence of increased noise accompanying the narrow collimation.

Paper Details

Date Published: 16 July 1981
PDF: 8 pages
Proc. SPIE 0273, Application of Optical Instrumentation in Medicine IX, (16 July 1981); doi: 10.1117/12.931819
Show Author Affiliations
G. Allan Johnson, Duke University Medical Center (United States)
Melvyn Korobkin, Duke University Medical Center (United States)
E. Ralph Heinz, Duke University Medical Center (United States)

Published in SPIE Proceedings Vol. 0273:
Application of Optical Instrumentation in Medicine IX
James A. Mulvaney; Joel E. Gray; Arthur G. Haus; William S. Properzio, Editor(s)

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