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Article
July 18, 1977

Computerized Cranial TomographyEffect on Diagnostic and Therapeutic Plans

Author Affiliations

From the Center for Analysis of Health Practices, Harvard School of Public Health (Dr Fineberg and Ms Sosman); and the Department of Radiology, Massachusetts General Hospital (Dr Bauman), Boston.

JAMA. 1977;238(3):224-227. doi:10.1001/jama.1977.03280030032016
Abstract

The effect of computerized cranial tomography (CCT) on physicians' diagnostic and therapeutic plans in 194 patients scanned consecutively during a 17-day period at the Massachusetts General Hospital was studied. Use of CCT substantially decreased the perceived need for other neurodiagnostic tests in this patient population. There was a reduction of at least 41% in radionuclide scans, 52% in angiograms, and 73% in pneumoencephalograms compared to the needs projected had CCT not been available. Therapy was altered after 37 scans in 36 patients (19% of those examined): new treatment was begun after 15 scans, previously planned therapy became more precise after 9 scans, treatment was found to be unnecessary after 7 scans, and treatment was abandoned as worthless after 6 scans.

(JAMA 238:224-227, 1977)

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