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Proceedings Paper

Quality assurance for CT and MRI scanners
Author(s): Alan H. Rowberg; David R. Haynor; Michael Denny; Marv Kleven; David J. Goodenough
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Paper Abstract

While specialized phantoms for quality assurance have been provided with CT scanners since these devices were first marketed to radiology departments, there has been little in the way of integrated software and procedures to use these phantoms on an on-going basis. Typically, they are used initially when the scanner is installed, and then used only very intermittently thereafter, usually by the vendors' service personnel. Although calibration scans are performed routinely, these typically only establish the baseline for the accuracy and uniformity of CT numbers, and do not actually measure the resolution which the images are capable of achieving. Over the last four years, a software package to automatically analyze images from CT scanners has been developed, and this was adapted to use with MRI scanners in 1993. An additional software package has been developed to handle the results of the individual quality assurance scans in a data base, and allow for easy analysis and graphing of the results.

Paper Details

Date Published: 8 May 1995
PDF: 4 pages
Proc. SPIE 2432, Medical Imaging 1995: Physics of Medical Imaging, (8 May 1995); doi: 10.1117/12.208375
Show Author Affiliations
Alan H. Rowberg, Univ. of Washington (United States)
David R. Haynor, Veterans Affairs Medical Ctr. (United States)
Michael Denny, Veterans Affairs Medical Ctr. (United States)
Marv Kleven, Veterans Affairs Medical Ctr. (United States)
David J. Goodenough, George Washington Univ. (United States)


Published in SPIE Proceedings Vol. 2432:
Medical Imaging 1995: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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