Related Experiment Videos
[MR-venography using manual flow augmentation in an open low field MR system]
C König1, J Wiskirchen, J Trübenbach
1Abteilung Radiologische Diagnostik, Universität Tübingen. claudius.koenig@t-online.de
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|October 3, 2001
Summary
Manual calf compression, a novel flow augmentation technique, effectively enhances deep vein signal for MR venography in open, low-field systems. This simple method improves visualization of proximal calf veins.
Area of Science:
- Medical Imaging
- Radiology
- Vascular Imaging
Context:
- Open configuration, low-field Magnetic Resonance Imaging (MRI) systems present challenges for deep vein visualization.
- Traditional MR venography (MRV) may have limitations in signal enhancement for deep calf veins.
Purpose:
- To assess the feasibility of manual calf compression (flow augmentation) for improving signal in deep veins during MR venography.
- To evaluate this technique in open, low-field MRI systems.
Summary:
- Ten healthy volunteers underwent MR venography with and without manual calf compression.
- Gradient recalled echo sequences with and without arterial presaturation were tested.
- Compression timing and location (proximal calf) were critical for flow acceleration and signal enhancement, particularly in posterior tibial and peroneal veins.
Impact:
- Manual calf compression is a simple and effective complementary method for MR venography in open, low-field MRI.
- This technique enhances signal in deep calf veins, potentially improving diagnostic accuracy.