Size and location of ruptured and unruptured intracranial aneurysms measured by 3-dimensional rotational angiography

被引:129
作者
Beck, J [1 ]
Rohde, S
Berkefeld, J
Seifert, V
Raabe, A
机构
[1] Goethe Univ Frankfurt, Dept Neurosurg, D-60528 Frankfurt, Germany
[2] Goethe Univ Frankfurt, Inst Neuroradiol, D-60528 Frankfurt, Germany
来源
SURGICAL NEUROLOGY | 2006年 / 65卷 / 01期
关键词
3D-rotational angiography; intracranial aneurysm; aneurysm location; aneurysm size; subarachnoid hemorrhage;
D O I
10.1016/j.surneu.2005.05.019
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objective: The aim of the study was to report about accurate size and location of a consecutive series of ruptured and unruptured aneurysms taking the complex 3-dimensional (3D) anatomy and parent vessel morphology into consideration by using the newly developed 3D rotational angiography (3D-RA). Methods: One hundred eighteen consecutive patients with 155 saccular intracranial aneurysms were included in the study and received 3D-RA reconstructions for measurement of maximal height and width of the aneurysmal sac. Statistical evaluation compared values for ruptured (n = 83) and unruptured.(n = 72) aneurysms. Results: Mean height and width of unruptured aneurysms were 5.7 and 5.7 mm; of ruptured aneurysms, 6.7 and 6.1 mm (not significant, P =.7 for height and P =.9 for width). The majority of ruptured aneurysms, 81.9% and 59%, were smaller than 10 and 7 mm; likewise, 81.9% and 68.1% of unruptured aneurysms were smaller than 10 and 7 mm. The difference in frequency of small (< 10/< 7 min) aneurysms between unruptured and ruptured aneurysms was not significant (P = 1.0 and .32, respectively). The majority (69.4%) of small ruptured aneurysms (< 7 mm) were located in the anterior circulation. Most ruptured aneurysms were in the size group 4 to 6 mm in height and 2 to 4 min in width, and a critical threshold size for aneurysm rupture could not be identified. Conclusions: An automated calibration procedure applied to all images and excellent visualization of aneurysm and parent vessel morphology using 3D-RA allow accurate size measurement of intracranial aneurysms which may be smaller than previously thought. Small aneurysm (< 7 mm), also in the anterior circulation, should be carefully evaluated for treatment. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:18 / 27
页数:10
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