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  • Title: Digital subtraction angiography of the carotid arteries: a comparative study in 100 patients.
    Author: Chilcote WA, Modic MT, Pavlicek WA, Little JR, Furlan AJ, Duchesneau PM, Weinstein MA.
    Journal: Radiology; 1981 May; 139(2):287-95. PubMed ID: 7012921.
    Abstract:
    Conventional angiography and intravenous digital subtraction angiography (DSA) were used to examine the common carotid artery bifurcations in 100 patients with clinically suspected arteriosclerotic disease. In 60% of the patients, the quality of the DSA examination was good or excellent bilaterally; in 23%, the quality was good or excellent on one side; in the remaining 17%, both bifurcations were poorly visualized. There was excellent correlation of conventional and digital angiograms when the carotid bifurcations were well visualized with DSA (sensitivity 95%, specificity 99%, accuracy 97%). When the carotid bifurcations were not well visualized with DSA, there was a substantial chance for misinterpretation of the study (sensitivity 54%, specificity 70%, accuracy 64%). Digital subtraction angiography is a safe, rapid procedure that can be performed on an outpatient basis and can accurately evaluate the carotid bifurcation in approximately 70% of the arteries examined.
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