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[Duplex sonography of abdominal vessels]
P Mildenberger1, R Lotz, K F Kreitner
1Institut für Klinische Strahlenkunde, Klinikum der Johannes-Gutenberg-Universität, Mainz.
Abstract:
Duplex sonography is a non-invasive procedure which permits the determination of flow velocity and direction in visceral vessels. Results in 50 normals have shown that small arteries can be evaluated in about 50% of cases. The portal venous system can be demonstrated in all cases; average flow velocity and volume is 15.2 +/- 2.8 cm/s and 694 +/- 230 ml/min, corresponding with the values obtained by invasive methods. Clinical application for duplex examinations can be found in portal hypertension, varices, thromboses, aneurysms and transplant kidneys.