Head and neck vascular malformations: time-resolved MR projection angiography
Head and neck vascular malformations: time-resolved MR projection angiography
复制标题
头颈部血管畸形：时间分辨磁共振投影血管造影
DOI：
10.1007/s00234-003-1039-4
复制
发表时间：
2003
期刊：
影响因子：
2.8
通讯作者：
J. Klisch
中科院分区：
文献类型：
--
作者：
S. Ziyeh;M. Schumacher;R. Strecker;J. Rössler;A. Hochmuth;J. Klisch
颅外血管畸形可分为血管瘤和血管畸形。后者可以根据血管通道的主要类型进行细分。高流量和低流量血管畸形的分离具有临床重要性。我们报告了对头部和颈部血管畸形的时间分辨磁共振投影血管造影（MRPA）的初步观察结果。我们检查了8例头颈部血管异常的患者。在MRPA上，早期动脉相和畸形增强之间的时间可以用来区分高血流和低血流病变。高血流动静脉畸形早期强化。静脉畸形在MRPA上不可见或显示静脉的晚期增强。1例患者在下颌骨动静脉瘘栓塞后接受检查。MRPA正常表明无残留病变。
Extracranial vascular anomalies can be divided into haemangiomas and vascular malformations. The latter can be subdivided on the basis of the predominant type of vascular channels. Separation of high- and low-flow vascular malformations is of clinical importance. We report preliminary observations on time-resolved magnetic resonance projection angiography (MRPA) of vascular malformations of the head and neck. We examined eight patients with vascular anomalies of the head and neck. On MRPA the time between the early arterial phase and enhancement of the malformation could be used to distinguish high- and low-flow lesions. High-flow arteriovenous malformations showed early, intense enhancement. Venous malformations were either not visible on MRPA or showed late enhancement of veins. One patient was examined after embolisation of an arteriovenous fistula of the mandible. Normal MRPA was taken to indicate absence of a residual lesion.