Fürst G, Bettag M, Fischer H, Skutta B, Hofer M, Steinmetz H, Kahn T
Institut für Diagnostische Radiologie, Heinrich-Heine-Universität, Düsseldorf.
Rofo. 1993 Jul;159(1):71-7. doi: 10.1055/s-2008-1032724.
This study evaluates the usefulness of MR angiography (MRA) in analysing cerebral arterial blood supply and venous drainage in patients with intracranial arteriovenous malformations (AVM). Selective MRA of the carotid, middle cerebral or vertebrobasilar territories was performed by means of presaturation of up to three of the brain-supplying arteries at the level of the middle or lower neck (angled presaturation slabs). Results obtained with selective, non-selective arterial, as well as venous MRA in 13 consecutive patients were compared with the findings at intraarterial angiography, the latter serving as the "gold standard". Sensitivity in identifying major feeding arteries was 100%. Determination of the absolute and relative AVM sizes at selective MRA corresponded with IAA. The mean difference was 17.6 and 3.9% respectively. Both display of superficial and deep venous drainage was provided by 2-dimensional venous MRA. The authors conclude that selective MRA of cerebral arteries as used here is a powerful non-invasive method to demonstrate blood supply by single feeding vessels in intracranial malformations. 2D venous MRA permits an accurate evaluation of the venous drainage pattern.
本研究评估磁共振血管造影（MRA）在分析颅内动静脉畸形（AVM）患者脑动脉血供和静脉引流方面的实用性。通过在颈部中下段对多达三根脑供血动脉进行预饱和（倾斜预饱和层面），对颈动脉、大脑中动脉或椎基底动脉区域进行选择性MRA。将13例连续患者的选择性、非选择性动脉及静脉MRA结果与动脉内血管造影结果进行比较，后者作为“金标准”。识别主要供血动脉的敏感性为100%。选择性MRA测定的AVM绝对和相对大小与动脉内血管造影结果相符。平均差异分别为17.6%和3.9%。二维静脉MRA可显示浅表和深部静脉引流。作者得出结论，本文所采用的脑动脉选择性MRA是一种强大的非侵入性方法，可显示颅内畸形中单一供血血管的血供情况。二维静脉MRA能够准确评估静脉引流模式。
