From the Departments of Neuroradiology (E.K., A.C.N., T.T., A.B., S.G., A.G., P.B., J.H.).
Department of Interventional Neuroradiology (R.B.), Rothschild Foundation Hospital, Paris, France.
AJNR Am J Neuroradiol. 2018 Jun;39(6):1065-1067. doi: 10.3174/ajnr.A5616. Epub 2018 Mar 29.
Our aim was to compare the detectability of aneurysmal wall enhancement in unruptured intracranial aneurysms between conventional and motion-sensitized driven equilibrium-prepared postcontrast 3D T1-weighted TSE sequences (sampling perfection with applicationoptimized contrasts by using different flip angle evolution, SPACE). Twenty-two patients with 30 unruptured intracranial aneurysms were scanned at 3T. Aneurysmal wall enhancement was more significantly detected using conventional compared with motion-sensitized driven equilibrium-prepared SPACE sequences (10/30 versus 2/30, < .0001). Contrast-to-noise ratio measurements did not differ between conventional and motion-sensitized driven equilibrium-prepared sequences ( = .51). Flowing blood can mimic aneurysmal wall enhancement using conventional SPACE sequences with potential implications for patient care.
我们的目的是比较常规和运动敏感驱动平衡准备对比增强 3D T1 加权 TSE 序列（通过使用不同的翻转角演化、采样完美的应用优化对比，SPACE）在未破裂颅内动脉瘤中检测动脉瘤壁增强的能力。在 3T 对 22 例 30 个未破裂颅内动脉瘤患者进行扫描。与运动敏感驱动平衡准备 SPACE 序列相比，常规序列更能显著检测到动脉瘤壁增强（10/30 与 2/30，<.0001）。常规和运动敏感驱动平衡准备序列之间的对比噪声比测量没有差异（=.51）。常规 SPACE 序列中的流动血液可以模拟动脉瘤壁增强，这可能对患者护理产生影响。
