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Angiology
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Ocular Pneumoplethysmography (OPG-Gee) in Noninvasive Evaluation of Carotid Artery Stenosis

Thomas S. Riles

Department of Surgery, New York University Medical Center, New York, New York

Bert C. Eikelboom

Department of Surgery, New York University Medical Center, New York, New York

Povilas Pauliukas

Department of Surgery, Vilnius State University, Lithuania

Patricia Folcarelli

Department of Surgery, New York University Medical Center, New York, New York

F. Gregory Baumann

Department of Surgery, New York University Medical Center, New York, New York

Anthony M. Imparato

Department of Surgery, New York University Medical Center, New York, New York

Carotid artery stenosis can be evaluated noninvasively by ocular pneumo plethysmography (OPG-Gee). This simultaneously measures both ophthalmic artery pressures and is therefore capable of detecting pressure-reducing or hemodynamically significant carotid lesions. An OPG-angiography correlation was made for 200 carotid arteries in 110 patients. Sensitivity, specificity and overall accuracy were 91%, 89%, and 90% respectively, if calculated per artery. On a per patient basis these figures were 94%, 88%, and 91%. Applica tions of this rapid and simple technique in clinical practice include selection of patients for angiography and carotid endarterectomy, as well as early and late control of the operative results.

Angiology, Vol. 34, No. 11, 724-730 (1983)
DOI: 10.1177/000331978303401106
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