Obara Makoto, Van Cauteren Marc, Honda Masatoshi, Imai Yutaka, Kuroda Kagayaki
Philips Electronics Japan Ltd., Healthcare.
Magn Reson Med Sci. 2014;13(2):139-44. doi: 10.2463/mrms.2013-0036. Epub 2014 Apr 28.
We assessed the improved motion-sensitized driven equilibrium (iMSDE) technique for multiple contrast 3-dimensional vessel wall imaging at 3T.
Carotid images were obtained using iMSDE combined with turbo field echo (iMSDE-TFE) and conventional double inversion-recovery turbo spin-echo (DIR-TSE) in 5 healthy adult subjects. The tissue signal-to-noise efficiency (SNReff), SNR divided by the square root of scan time, lumen-tissue contrast-to-noise efficiency (CNReff), CNR divided by the square root of scan time, and tissue signal intensity ratio (SIR) were measured in both techniques and compared.
The iMSDE-TFE had higher SNReff and CNReff (P < 0.01) and strong correlation in SIR (R = 0.92) compared to DIR-TSE.
The iMSDE-TFE sequence is an efficient technique for vessel wall screening.
我们评估了用于3T下多对比三维血管壁成像的改良运动敏感驱动平衡（iMSDE）技术。
在5名健康成年受试者中，使用iMSDE结合涡轮场回波（iMSDE-TFE）和传统的双反转恢复涡轮自旋回波（DIR-TSE）获取颈动脉图像。测量两种技术中的组织信号噪声效率（SNReff）、信噪比除以扫描时间的平方根、管腔-组织对比噪声效率（CNReff）、对比噪声比除以扫描时间的平方根以及组织信号强度比（SIR），并进行比较。
与DIR-TSE相比，iMSDE-TFE具有更高的SNReff和CNReff（P < 0.01），且SIR具有强相关性（R = 0.92）。
iMSDE-TFE序列是一种有效的血管壁筛查技术。
