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J Korean Neurol Assoc. 1992;10(2):197-208.
- MR Angiography in the Head and Neck
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Kil-Woo Lee, M.D., Sang-Hoon Bae, M.D., Byung-Chul Lee, M.D., Seung-Hyun Kim, M.D.
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Department of Neurology and Radiology, College of Medicine, Hallym University
- 두경부의 자기공명 혈관조영술
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이길우, 배상훈,이병철,김승현
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한림대학교 방사선과, 신경과.
- Abstract
- Contrast angiograplly is a reliable method for obtaing morphologic and hemodynamic informations about the blood vessels. The morbidity assoicated with angiographic procedures includes the possibility of stroke, renal failure, and discomforts from catheter insertion and contrast media injection. A noninvasive alternative angiographic method would be clearly desirable. This article discusses 70 examples of our initial experience with MR angiography (time-of-flight and phase contrast methods).
The correlation between MR angiography and contrast angiography was relatively good.
Conventional MR neuroangiography was better for the evaluation of collateral circulation
than MR angiography. On MR angiography. The over estimation of luminal narrowing
resulted from complex flow that occurred normally in carotid bifurcation as well as
distal to stenosis. Contrast material was used for better monitoring of the spins of the
capillary circulation. Feeding arteries and draining veins of vascular malformations were
well delineated only in a large one, but not delineated in a small AVM and in a venous
angioma Only six cases of aneurysm were experienced in this study and a aneurysm as
small as 4 mm could be shown, The obstructed vessels were well demonstrated on MR
angiography. 2-D time-of-flight MR angiography of trans verse sinus thrombosis could
confirm the clinical impression by the showing of little now in the transverse sinus. MR
angiography of the head and neck offers great promise as a noninvasive and useful
means of studying vascular abnormalities and as an alternative means of difficult cases
for contrast angiography.
Keywords :
- 초록
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