<正>Objective:To introduce a new better contrast-enhanced MR angiographic method

named 3D time-resolved imaging of contrast kinetics （3D-TRICKS）. Methods: TRICKS is a high temporal resolution （2-6 s） MR angiographic technique using a short TR（4 ms） and TE（1. 5 ms）

partial echo sampling

in which central part of k-space is updated more frequently than the peripheral part. TRICKS pre-contrast mask 3D images are firstly scanned

and then the bolus injecting of Gd-DTPA. 15-20 sequential 3D images are acquired. The reconstructed 3D images

subtraction of contrast 3D images with mask images

are conceptually similar to a catheter-based intra-arterial digital subtraction angiographic series （DSA）. Thirty patients underwent contrast-enhanced MR angiography using 3D-TRICKS. Results: Totally 12 vertebral arteries were well displayed on TRICKS

in which 7 were normal

1 demonstrated bilateral vertebral artery stenosis

4 had unilateral vertebral artery stenosis and 1 was accompanied with the same lateral carotid artery bifurcation stenosis. Four cases of bilateral renal arteries were normal

1 transplanted kidney artery showed as normal and 1 transplanted kidney artery showed stenosis. 2 cerebral arteries were normal

1 had sagittal sinus thrombosis and 1 displayed intracranial arteriovenous malformation. 3 pulmonary arteries were normal

1 showed pulmonary artery thrombosis and 1 revealed pulmonary sequestration’s abnormal feeding artery and draining vein. One left lower limb fibrolipoma showed feeding artery. One displayed radial-ulnar artery artificial fistula stenosis. One revealed left antebrachium heman-gioma. Conclusion: TRICKS can clearly delineate most body vascular system and reveal most vascular abnormality. It possesses convenience and high successful rate

which make it the first choice of displaying most vascular abnormality.