Duplex Scanning of the Peripheral Arteries: Correlation of the Peak Velocity Ratio with Angiographic Diameter Reduction

THERAPEUTIC CLASS

Duplex Scanning of the Peripheral Arteries: Correlation of the Peak Velocity Ratio with Angiographic Diameter Reduction

RANKE C - Personal Name;

The correlation of the peak systolic velocity (PSV) and the peak velocity ratio (PVR, calculated as intrastenotic PSV divided by proximally recorded PSV) with percent diameter reduction was studied in 62 patients with peripheral arterial occlusive disease. PSV values correlated well with angiographic diameter reduction (r =0.81, n = 106 stenoses), but due to large variability the sensitivity and specificity in the detection of >50% stenoses were only 66% and 80% (for a cutoff value of 180 cm/s).

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Language: English
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Classification: NONE
Content Type: Therapeutic Class
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Subject(s): Cardiovascular & Hematopoietic System
Specific Detail Info: Ultrasound in Med. & BioL Vol. 18, No. 5, pp. 433-440, 1992
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