Sener R N
Department of Radiology, Ege University Hospital, Bornova, Izmir, Turkey.
Neuroradiology. 1994;36(2):117-20. doi: 10.1007/BF00588074.
The author studied a superficial temporal vein running anteroposteriorly within the occipitotemporal sulcus, the "occipitotemporal vein", which, when prominent, could be thought to simulate a "venous angioma" on MRI. A cadaver (n = 50), MRI (n = 200), and CT (n = 50) study was undertaken to examine the incidence, detectability, size, location, and drainage of the occipitotemporal vein. It was an approximately 3 mm wide, 2-5 cm long structure. It was present in 83% of the cadavers (52% bilaterally), and clearly identifiable on 73% of the MRI (43% bilaterally), and 8% of the CT studies. In 18% of the cadavers the vein was totally absent, and it was not seen in 27% of the MRI examinations. The occipitotemporal vein can be distinguished from a venous angioma by its particular location and course, and by lack of intraluminal bright signal on spin-echo T2-weighted and/or contrast-enhanced T1-weighted images. In addition, venous angiomas are usually intraparenchymal, whereas the occipitotemporal vein is a superficial vessel.
作者研究了一条在枕颞沟内前后走行的颞浅静脉，即“枕颞静脉”，当其明显时，在磁共振成像（MRI）上可能会被误认为“静脉血管瘤”。进行了尸体研究（n = 50）、MRI研究（n = 200）和CT研究（n = 50），以检查枕颞静脉的发生率、可检测性、大小、位置和引流情况。它是一个宽度约3毫米、长度2 - 5厘米的结构。在83%的尸体中存在（52%为双侧存在），在73%的MRI检查中可清晰识别（43%为双侧），在8%的CT研究中可见。在18%的尸体中该静脉完全缺失，在27%的MRI检查中未见到。枕颞静脉可通过其特定的位置和走行，以及在自旋回波T2加权和/或对比增强T1加权图像上缺乏管腔内明亮信号与静脉血管瘤相区分。此外，静脉血管瘤通常位于脑实质内，而枕颞静脉是浅表血管。
