Assessment of improved motion-sensitized driven equilibrium (iMSDE) for multi-contrast vessel wall screening.
OBJECTIVE
We assessed the improved motion-sensitized driven equilibrium (iMSDE) technique for multiple contrast 3-dimensional vessel wall imaging at 3T.


METHODS
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.


RESULTS
The iMSDE-TFE had higher SNReff and CNReff (P < 0.01) and strong correlation in SIR (R = 0.92) compared to DIR-TSE.


CONCLUSIONS
The iMSDE-TFE sequence is an efficient technique for vessel wall screening.
Philips Electronics Japan Ltd., Healthcare.
Makoto
M
Obara
Marc
M
Van Cauteren
Masatoshi
M
Honda
Yutaka
Y
Imai
Kagayaki
K
Kuroda
D000328:Adult; D002339:Carotid Arteries / Q000033:anatomy & histology*; D064368:Healthy Volunteers; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000379:methods*; D009038:Motion; D059629:Signal-To-Noise Ratio