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논문 기본 정보

자료유형
학술저널
저자정보
배상훈 (한림대학교 의과대학 방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제28권 제4호
발행연도
1992.1
수록면
565 - 574 (10page)

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This article reviewed the initial experiences of 73 cases of the magnetic resonance angiography (MRA) to evaluated its usefulness and limitaions as a screening examination. Among them 31 patients underwent correlative contrast angography (CA). MRA examinations were performed with 3-dimensional time of flight (TOF) acquisitionhs (carotid, intracranial vessels, abdomen & pelvis), 2-dimensional TOF (abdomen & pelvis), and 3-dimensional phase contrast (PC) method(intracranial vessels, lower extremity). In head and neck area, the success rates of MRA in visualization of normal vessels were 91% in the carotid artery and 89% in intracranial vessels. In comparison with correlative CA of 45 lesions in 23 patients, MRA show successful detection of abnormalities in 43 lesions. There was only one false positive case and one false negative case in differentitation of normal and abnormal cases. Among 43 lesions detected on MRA, 25 lesions were well correlated with CA but 18 lesions showed m ld differences in degree of disease. In other areas, even though for a limited number of cases, the abdominal aorta and proximal parts of its major branches were well visualized on MRA. In three cases of renal artery stenosis, MRA showed no visible renal artery in disease side. So the abnormality in renal artery could be suspected, but accurate stenotic site could not be suspected, but accurate stenotic site could not be detected. In three cases of arterial occlusion in pelvis and lowed extremity, MRA were well correlated with CA. In conclusion, MRA can be used as an ideal safe screening examination method with high success rate and abnormality detection rate, especially in carotid artery, circle of Willis, main intracranial vessels, abdominal aorta and proximal portions of its major branches.

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