McRae L P, Cadwallader J A, Kartchner M M
Med Instrum. 1979 Mar-Apr;13(2):87-91.
Clinical applications of imaging techniques and noninvasive physiological vascular evaluations provide useful assistance in the detection and management of stroke-prone patients by minimizing unnecessary carotid arteriography and surgery. Two such evaluation techniques are oculoplethysmography (OPG) and carotid phonoangiography (CPA). Developed, used, and proved highly reliable at the Tucson (Arizona) Medical Center, the techniques have been documented in 12,000 tests on approximately 8500 patients. OPG simultaneously records the bilateral ocular pulses concomitantly with external carotid pulses. Delays in timing of these pulses reflect reduction of flow in the internal and/or external carotid arteries, respectively. CPA consists of electronic stethoscopic auscultation, direct visualization, and photographic recording of carotid bruits or blood flow sounds.
成像技术和非侵入性生理血管评估的临床应用，通过尽量减少不必要的颈动脉血管造影和手术，为易患中风患者的检测和管理提供了有用的帮助。两种这样的评估技术是眼体积描记法（OPG）和颈动脉血管音造影（CPA）。这些技术在图森（亚利桑那州）医疗中心开发、使用并被证明高度可靠，已在约8500名患者的12000次测试中得到记录。OPG同时记录双侧眼脉搏以及颈外动脉脉搏。这些脉搏的时间延迟分别反映颈内动脉和/或颈外动脉血流的减少。CPA包括电子听诊、直接可视化以及颈动脉杂音或血流声音的摄影记录。
