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April 1988

Doppler Ultrasound, Laser Doppler, and Perfusion Fluorometry in Bowel Ischemia

Author Affiliations

From the Surgical Service, Veterans Administration Medical Center, Boston (Dr Lynch); the Department of Surgery, Boston University School of Medicine (Drs Lynch and Hobson and Mr Kerr); the Anesthesia (Mr Brousseau and Ms Reilly) and Pathology (Dr Tseng) Services, Veterans Administration Medical Center, Philadelphia; and the Department of Anesthesia, Yale University School of Medicine, New Haven, Conn (Dr Silverman).

Arch Surg. 1988;123(4):483-486. doi:10.1001/archsurg.1988.01400280093017

• Improved accuracy and objectivity in the evaluation of Intestinal viability has been reported by some investigators using Doppler ultrasound, and more recently laser Doppler velocimetry and perfusion fluorometry. To compare the sensitivity and clinical applicability of these techniques, intestinal viability was evaluated by each method in nine 15- to 50-cm loops of small bowel prepared by division of the mesenteric vasculature in five anesthetized dogs. The sensitivity of Doppler ultrasound was 86%, of laser Doppler flow velocity 85%, of laser Doppler index 94%, and of perfusion fluorometry 95%. Though the sensitivity of Doppler ultrasound is significantly less than that of laser Doppler and perfusion fluorometry, this is not unexpected since the latter two techniques are more quantitative than Doppler ultrasound. Clinically, Doppler ultrasound compares favorably with laser Doppler and perfusion fluorometry, and its low cost and simplicity suggest its adjunctive use in the operative setting.

(Arch Surg 1988;123:483-486)

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