METHOD OF DETECTING STENOSIS IN PERIPHERAL ARTERIAL VESSEL THROUGH MAGNETIC RESONANCE IMAGING AND ITS DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method of detecting a stenosis in peripheral arterial vessels through a magnetic resonance technology and a method of displaying severity of a stenosis, and to provide a device for them. SOLUTION: A patient's (280) peripheral arterial vessels are screened to see if there are any disorders or narrowed blood vessels (100,108), using a magnetic resonance technology (10). If a stenosis is found, the stenosis is graded according to its severity (142). While obtaining a series of the first MR images with a low resolution (126), a contrast agent bolus which passes through the patient (280) is tracked (354). This first examination increases sensitivity of detecting disorders by using a bipolar gradient wave which senses a flow along with gradient echo imaging pulse sequence (160). After the stenosis (108) is detected, the stenosis is graded (142) by using the second MR image with a higher resolution (140) than the first MR image.