middle superficial cerebral vein大脑中浅静脉
Result: The main types of the superficial middle cerebral vein were single(10), double(11), tris(6) and undeveloped(3).
结果：大脑中浅静脉表现为单干型(10侧)、双干型(11例)、三干型(6例)和未发育型(3例)。