Doppler techniques for intraoperative arterial assessment
The results of arterial reconstructive surgery are determined by patient selection and operative technique. Although technical errors are uncommon, they are often responsible for perioperative complications such as occlusion of bypass grafts and stroke after carotid endarterectomy [1–3]. Avoiding these problems requires that the technical result be assessed at the conclusion of the procedure. Simple observation and palpation of the vessels are not adequate, since defects within the lumen rarely affect the external surface and a transmitted pulse may be present in an occluded artery. Therefore, objective methods must be used to assess the surgical result and facilitate immediate correction of technical errors.
KeywordsCarotid Endarterectomy Doppler Signal Technical Error Doppler Method Saphenous Vein Bypass Graft
Unable to display preview. Download preview PDF.
- 4.Zierler RE: Intraoperative Doppler techniques for arterial evaluation. Seminars in Ultrasound 6: 73–84, 1985.Google Scholar
- 6.Baker DW: Pulsed ultrasonic Doppler blood flow sensing. IEEE Trans Sonics Ultrasonics 17:170–173, 1970.Google Scholar
- 8.Zierler RE, Roederer GO, Strandness DE: The use of frequency spectral analysis in carotid artery surgery. In Bergan JJ, Yao JST (eds.): Cerebrovascular Insufficiency. Orlando, Grune and Stratton, Inc., pp. 137–163, 1983.Google Scholar
- 14.Bandyk DF, Cato RF, Towne JB: A low flow velocity predicts failure of femoropopliteal and femorotibial bypass grafts.f Surgery 98: 799–809, 1985.Google Scholar
- 15.Seifert KB, Blackshear WM: Continuous-wave Doppler in the intraoperative assessment of carotid endarterectomy. J Vase Surg 2: 817–820, 1985.Google Scholar