The application value of modified time of flight magnetic resonance venography in iliac vein compression syndrome

Motivation: The use of respiratory-gated TOF-MRV in assessing the degree of iliac vein compression is easily affected by respiratory uniformity, leading to vascular distortion and corresponding false images. Goal(s): This study evaluated the diagnostic effectiveness of an improved TOF-MRV (mTOF-MRV) in Iliac vein compression syndrome (IVCS) diagnosis by optimizing key parameters, compared with conventional TOF-MRV. Approach: Objectively evaluated the deviation of vascular stenosis degree between TOF MRV and mTOF MRV using DSA as the standard. Results: The mTOF-MRV has better image quality and can accurately detect venous stenosis. It can be applied in the diagnosis of IVCS and further assessments after endovascular interventions. Impact: mTOF-MRV more accurately located iliac vein stenosis without obvious stair-step artifacts and magnetic sensitivity artifacts, thereby meeting the diagnostic and clinical requirements It can be applied in the diagnosis of iliac vein compression syndrome and further assessments after endovascular interventions.