Practical Approach To Quality Assurance In Computed Tomography

G. Allan Johnson

doi:10.1117/12.933821

29 December 1982 Practical Approach To Quality Assurance In Computed Tomography

G. Allan Johnson

Proceedings Volume 0347, Application of Optical Instrumentation in Medicine X; (1982) https://doi.org/10.1117/12.933821
Event: Application of Optical Instrumentation in Medicine X, 1982, New Orleans, United States

Abstract

The goal of tissue characterization via quantitative computed tomography can only be accomplished with careful control of certain parameters. A quality assurance program is described which includes daily measurement of certain essential elements e.g. Hounsfield conversion, linearity, noise and resolution. Secondary measurements of collimation, bed movement, dose, and sensitivity profiles are performed on a monthly basis. Daily measurements are accomplished in less than 15 minutes while monthly checks take less than 1.5 hr thus minimizing conflict with a busy clinical routine. Examples of rapid recording methods and measurement techniques are included.

Citation Download Citation

G. Allan Johnson "Practical Approach To Quality Assurance In Computed Tomography", Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); https://doi.org/10.1117/12.933821

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