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在长期卷曲脑动脉瘤中,黑血增强的血液动力学性质

Claudia Godi¹, Francesco Destro², Paolo Garofalo²

¹Neuroradiology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy. godi.claudia@hsr.it.

|August 9, 2023

概括

卷曲脑动脉瘤中黑血 (BB) 增强表明不完全的闭塞和卷曲密度低. 这一发现支持了治疗动脉瘤中BB增强的流量相关机制.

科学领域:

神经辐射学神经辐射学
医疗成像医学成像
脑血管疾病脑血管疾病

背景情况:

使用黑血 (BB) 技术的血管壁成像 (VWI) 可以检测未经治疗的大脑动脉瘤的增强,通常是在生长或破裂之前.
在内血管治疗动脉瘤中BB增强的存在和意义仍在争论中.
这项研究研究了在卷状动脉瘤中BB增强的潜在流动相关机制.

研究的目的:

探索卷状脑动脉瘤中黑血 (BB) 增强与其闭塞状态和卷状脑动脉瘤密度之间的关系.
为了确定血液动力学机制是否是治疗动脉瘤中的BB增强的基础.

主要方法:

分析了44名患者的48个动脉瘤,这些患者接受了3T MRI,在卷积后进行了前和后对比的3D BB序列.
评估动脉内BB信号,并对增强模式进行分类 (部,血管内/内线圈,外围).
与数字减去血管学 (DSA) 确定线圈包装密度和修改的雷蒙德-罗伊分类 (MRRC) 锁定状态的BB发现的相关性.

主要成果:

在50%的动脉瘤中观察到前对比BB信号,与基线大小相关.
在65%的动脉瘤中检测到BB增强.
在DSA上发现BB增强与非完全动脉瘤闭塞和减少线圈包装密度之间的显著关联.

结论:

卷积动脉瘤中黑血 (BB) 增强与残留动脉瘤部分和不理想的卷积包装密度有关.
这些发现支持对长期治疗脑动脉瘤中BB增强的血液动力学解释.

关键词:

动脉瘤是一个动脉瘤.一个黑血的黑人.线圈线圈是指一个线圈.磁共振成像是一种磁共振成像技术.VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI VWIWI

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