³¹P MRSI Coil Combination Using ²³Na Sensitivity Information.

ABSTRACT:

Purpose

To optimally combine receive channels for ³¹P MRSI when the SNR is relatively low using sensitivity maps obtained from ²³Na signals.

Methods

This study utilized a dedicated X-nuclei 15-channel head coil array capable of imaging both ²³Na and ³¹P. After acquiring the relatively low-SNR multi-channel ³¹P MRSI signals, also the high-SNR ²³Na sensitivity information was acquired. The low-SNR ³¹P MRSI signals were combined using the high-SNR ²³Na sensitivity information, instead of the traditional self-weighting approach where ³¹P sensitivity is derived from the low-SNR ³¹P FID signals. The proposed method was evaluated by electromagnetic simulations, numerical Mo

SUBMITTER: Dai J 

PROVIDER: S-EPMC12850625 | biostudies-literature | 2026 Apr

REPOSITORIES: biostudies-literature