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November 1979

Noninvasive Diagnosis of Extracranial Carotid Arterial Disease: A Prospective Evaluation of Pulsed-Doppler Imaging and Oculoplethysmography

Author Affiliations

From the Department of Surgery (Drs Sumner, Ramsey, Miles, and Mr Russell), Southern Illinois University School of Medicine, St John's Hospital, Springfield, Ill, and the Department of Surgery (Mr Hajjar) University of Massachusetts Medical Center, Worcester, Mass.

Arch Surg. 1979;114(11):1222-1229. doi:10.1001/archsurg.1979.01370350024002

• Two hundred consecutive internal carotid arteries were examined with the Hokanson-pulsed Doppler ultrasonic arteriograph (UA) and the Kartchner-McCrae oculoplethysmograph (OPG). Roentgenographic studies were used to assess the relative accuracy of these two noninvasive tests. Diameter stenoses estimated from the UA and roentgenographic images agreed within ± 20% in 81% of the studies. The UA detected 61% of all stenoses of 20% to 39% and 89% of all stenoses greater than 40%. A sensitivity of 86% and a specificity of 90% were achieved with the UA compared with a sensitivity of 64% and a specificity of 85% with the OPG. When the UA and OPG agreed (67% of the vessels), the sensitivity was 95% and the specificity was 94%. When they disagreed, the UA was the better test having a sensitivity of 81% compared with 21% with the OPG.

(Arch Surg 114:1222-1229, 1979)