This study aimed to compare controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) accelerated 3D constructive interference in the steady state (3D-CISS) with conventional CISS, whether image quality can be achieved under the condition of shortening scanning time，we evaluated imaging quality of the trigeminal nerve in 14 healthy subjects,no significant differences of SNR and CNR were found between the two sequences, in other words, CAIPIRINHA- accelerated 3D CISS can improve scanning efficiency without affecting image quality.
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