The Usefulness of Simultaneously Excited Magnetic Resonance Signals from Diffusion Tensor Image

초록

Clinically acceptable scan time is very important in DTI which is essential for neurologic imaging and there have been ongoing efforts to make the scan time faster. Multi-Band SENSE simultaneous multi slice, also called multiband, is a better solution to reduce scan time. In order to compare the performance of SENSE and MB-SENSE on DTI acquisitions images were acquired using ACR phantom with factor 2 on both groups. The MB-SENSE group showed lower SNR values of center and peripheries than the SENSE in slice 7 (8.78 % and 8.99 % respectively). However, SNR loss is minimal. The SNR values profiles showed a equality from the center to peripheries of the image slice at both MB-SENSE and SENSE. The difference of SNR profiles was approximately 3 % at the center and 9 %-15 % at peripheries at SENSE. This became 3 % at the center and 10 %-15 % at peripheries at MB-SENSE. Therefore, this study has studied and verified the effect of MB-SENSE in temporal resolution over SENSE which are applied on DTI technique using ACR QA program.

키워드