- 뇌동정맥기형에 있어서 자기공명혈관조영술과 뇌혈관조영술의 비교
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- 김성희
- ㆍ 간행물명
- 대한방사선의학회지
- ㆍ 권/호정보
- 1992년|28권 5호|pp.664-670 (7 pages)
- ㆍ 발행정보
- 대한영상의학회
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- 정기간행물| PDF텍스트
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- 기타
In 10 cases with intracranial arterivenous malformation (AVMs) diagnosed by MR spin echo images, MR angiograpy was evaluated and compared with conventional angiography in regard to depiction of nidus, arterial feeders, and draining veins. Spin echo images demonstrated the nidus of the AVM in all cases, but displayed the feeding vassels inadequately. These vessels were directly visualized with 3 dimensional STAGE (small tip angle gradient echo) MR angiography using rephasing/dephasing pulse sequences. In 5 cases MR angiograpyhy and conventional angiography showed the same results. However, in the others, MR angiography showed lower resolution than conventional angiography. MR angiography is useful in preangiographic evaluation of intracranial AVM but improvement in image resolution, which is dependent on MR hard ware and pulse sequence, is still to be desired.