Related Experiment Videos
[Duplex sonography of the normal portal vein]
P Mildenberger1, R Lotz, K F Kreitner
1Institut für Klinische Strahlenkunde der Universität, Mainz.
Deutsche Medizinische Wochenschrift (1946)
|December 11, 1987
Summary
Ultrasonic duplex imaging accurately measures portal vein blood flow in healthy individuals. This non-invasive technique is valuable for assessing conditions like portal hypertension and thrombosis.
Area of Science:
- Medical Imaging
- Hemodynamics
- Vascular Ultrasound
Context:
- Portal vein assessment is crucial for diagnosing various vascular conditions.
- Non-invasive methods are preferred for patient safety and repeated measurements.
- Understanding normal portal hemodynamics provides a baseline for pathological states.
Purpose:
- To evaluate the utility of ultrasonic duplex system for portal vein flow measurement.
- To establish normal flow velocity and volume in the portal vein.
- To assess the reproducibility of the non-invasive technique.
Summary:
- A study measured portal vein flow velocity and direction in 50 healthy subjects using an ultrasonic duplex system.
- Mean flow velocity was 15.2 cm/s, with a volume flow of 693 ml/min, increasing postprandially.
- The method demonstrated good inter-observer and day-to-day reproducibility.
Impact:
- This non-invasive ultrasonic duplex method is suitable for quantitative assessment of the portal vein system.
- It can aid in the diagnosis and management of portal hypertension, thrombosis, and post-shunt operation complications.
- Provides a reliable, non-invasive tool for clinical evaluation of portal hemodynamics.