Image-directed Doppler measurement of superior mesenteric artery blood flow in volunteers was validated in two artificial models with either a venous or an arterial flow profile. In the "venous" model, the Doppler device overestimated the real flow velocity by 86 \* 7%, and in the "arterial" model b
Quantitative measurement of abdominal arterial blood flow using image-directed Doppler ultrasonography: Superior mesenteric, splenic, and common hepatic arterial blood flow in normal adults
โ Scribed by Takefumi Nakamura; Fuminori Moriyasu; Nobuyuki Ban; Osamu Nishida; Takashi Tamada; Toshihiko Kawasaki; Masahiko Sakai; Haruto Uchino
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 717 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0091-2751
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โฆ Synopsis
To measure volume blood flow quantitatively in human abdominal arter- ies, we used an ultrasonic image-directed Doppler system and electromagnetic flowmeter to first measure volume flow in canine arteries.
In dogs, there was a strong linear correlation (R = 0.98) between the product of the time average of the maximum blood flow velocity and the average cross-sectional area and the volume blood flow measured by an electromagnetic flowmeter.
These results enabled measurement of volume blood flow in the human superior mesenteric (SMA), splenic (SPA), and common hepatic (CHA) arteries from the abdominal wall. Comparison of pulsatility index values indicated a larger vascular resistance in the SMA than in the SPA or CHA.
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