Relationship between preoperative magnetic resonance imaging and surgical findings: aneurysm wall thickness on high-resolution T1-weighted imaging and contact with surrounding tissue on steady-state free precession imaging.
Relationship between preoperative magnetic resonance imaging and surgical findings: aneurysm wall thickness on high-resolution T1-weighted imaging and contact with surrounding tissue on steady-state free precession imaging.
复制标题
DOI：
10.2176/nmc.53.336
复制
发表时间：
2013
影响因子：
1.9
通讯作者：
H. Tenjin;S. Tanigawa;Michiko Takadou;Takahiro Ogawa;A. Mandai;Masataka Nanto;Y. Osaka;Y. Nakahara;M. Umeda;T. Higuchi
中科院分区：
文献类型：
--
作者：
H. Tenjin;S. Tanigawa;Michiko Takadou;Takahiro Ogawa;A. Mandai;Masataka Nanto;Y. Osaka;Y. Nakahara;M. Umeda;T. Higuchi
本研究通过高分辨率t1加权成像评估动脉瘤壁厚度，通过稳态自由进动（SSFP）成像评估动脉瘤与周围组织的接触情况。对连续35例37例未破裂脑动脉瘤（UCAs）患者的手术结果与术前磁共振（MR）成像结果进行前瞻性比较。13例uca未见动脉瘤壁，23例可见。16例uca可见动脉瘤与周围组织之间的蛛网膜下腔隙，12例可见动脉瘤与周围组织之间的脑脊液层，7例未见脑脊液层。在29例（78%）uca中，MR成像预测了手术结果，6例（16%）uca显示不同结果，2例（5%）由于术前MR图像质量不足而无法评估。在不同表现的UCA中，尽管高分辨率t1加权成像显示可见壁，但仍有5例UCA部分壁薄；尽管SSFP成像未显示可见脑脊液层，但1例UCA与周围组织接触较少。总之，高分辨率t1加权成像和SSFP成像提供了关于uca和周围组织的重要的额外术前信息。
This study evaluated the aneurysm wall thickness by high-resolution T1-weighted imaging and the contact between the aneurysm and surrounding tissue by steady-state free precession (SSFP) imaging. The surgical findings were prospectively compared with these preoperative magnetic resonance (MR) imaging findings in 35 consecutive patients with 37 unruptured cerebral aneurysms (UCAs). The aneurysm wall was not visible in 13 UCAs, but was visible in 23. Subarachnoid space between the aneurysm and surrounding tissue was visible in 16 UCAs, a visible layer of cerebrospinal fluid (CSF) between the aneurysm and surrounding tissue in 12, and no visible layer in 7. MR imaging predicted the surgical findings in 29 UCAs (78%), showed different findings in six UCAs (16%), and two (5%) could not be evaluated due to insufficient quality of preoperative MR images. Among the UCAs with different findings, five UCAs had a partially thin wall even though high-resolution T1-weighted imaging had shown a visible wall, and one UCA showed less contact with the surrounding tissue even though the SSFP imaging had shown no visible CSF layer. In conclusion, high-resolution T1-weighted imaging and SSFP imaging provided significant additional preoperative information regarding UCAs and the surrounding tissue.