Investigation of 7 Tesla Spine MRI with a 5-Channel Stripline Array and an 8-Channel Loop Array

and penetration depths for the loop (solid line) and stripline array (dashed line). B1 maps are given in [μT] for the stripline (B) and loop (C) array. In (D) the SNR profile of the combination of both arrays (solid line) was compared to the profile of the stripline array alone (dashed line). Measurements for (A) to (D) were performed in a phantom. A clinically usable contrast was achieved with the combined array in vivo in the T2w TSE image of a cervical spine (E). (F) shows the noise correlation matrix for the combination of both arrays with the stripline elements in the upper left corner, the loop elements in the lower right corner, and cross-correlation between arrays in the upper right/lower left corners. Investigation of 7 Tesla Spine MRI with a 5-Channel Stripline Array and an 8-Channel Loop Array