Nedim Kahraman Ahmet, Vural Ahmet
Department of Radiology, University of Health Sciences, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey.
Int J Health Sci (Qassim). 2021 Sep-Oct;15(5):28-33.
We aimed to evaluate the diagnostic efficacy of fast three-dimensional (3D) time-of-flight (TOF) magnetic resonance angiography (MRA) in the detection of cerebral aneurysms.
We screened 1589 patients over a 3-year period, who underwent a magnetic resonance imaging for headache. Fast 3D TOF MRA images taken in addition to routine neuroimaging sequences, which were examined by two independent observers to assess cerebral aneurysms.
Sixty-nine aneurysms were detected in 63 patients. The locations of the aneurysms were as follows: Middle cerebral artery, 27.5% ( = 19); internal carotid artery, 53.6% ( = 37); anterior cerebral artery, 5.8% ( = 4); posterior cerebral artery, 5.8% ( = 4); anterior communicating artery, 5.8% ( = 4); and ophthalmic artery, 1.4% ( = 1). Thirty-five (50.7%) were 7 mm or less, 23 (33.3%) were 8-10 mm, and 11 (15.9%) were 11 mm or larger. About 88% of pathological cases ( = 61) were saccular and 12 ( = 8) were fusiform type aneurysms. The interobserver compliance was high (K = 0.83) for detecting the aneurysms.
Considering the mortality and morbidity of subarachnoid hemorrhages, 3D TOF MRA is a successful, non-invasive method for detecting cerebral aneurysms. Results of the present study have shown that adding 3D TOF MRA to the routine brain imaging protocol is a beneficial tool for diagnosis.
我们旨在评估快速三维（3D）时间飞跃（TOF）磁共振血管造影（MRA）在检测脑动脉瘤方面的诊断效能。
我们在3年时间里筛选了1589例因头痛接受磁共振成像检查的患者。除常规神经成像序列外，还拍摄了快速3D TOF MRA图像，由两名独立观察者对这些图像进行检查以评估脑动脉瘤。
在63例患者中检测到69个动脉瘤。动脉瘤的位置如下：大脑中动脉，27.5%（=19个）；颈内动脉，53.6%（=37个）；大脑前动脉，5.8%（=4个）；大脑后动脉，5.8%（=4个）；前交通动脉，5.8%（=4个）；眼动脉，1.4%（=1个）。35个（50.7%）动脉瘤直径为7mm或更小，23个（33.3%）直径为8 - 10mm，11个（15.9%）直径为11mm或更大。约88%的病理病例（=61个）为囊状动脉瘤，12个（=8个）为梭形动脉瘤。观察者间在检测动脉瘤方面的一致性较高（K = 0.83）。
考虑到蛛网膜下腔出血的死亡率和发病率，3D TOF MRA是一种成功的、非侵入性的检测脑动脉瘤的方法。本研究结果表明，在常规脑部成像方案中增加3D TOF MRA是一种有益的诊断工具。
