Progress toward Quantitative Computed Tomography |
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| Authors: | Brooks Rodney A. Keller Mark R. O'Connor Christopher M. Sheridan William T. |
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| Affiliation: | Neuroradiology and Computed Tomography Section, Surgical Neurology Branch, National Institute of Neurological and Communicative Disorders and Stroke, National Institutes of Health, Building 10, Rm 11N242 Bethesda, Maryland 20205; |
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| Abstract: | Progress in the quantitative use of CT numbers for patient diagnosis has been limited because of scanner drift, energy dependence, and various artifacts. The nature of these errors is discussed, and methods of evaluating them are described. In addition, remedial measures are mentioned, including the use of a three-point calibration phantom. |
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