Meeting Banner
Abstract #4389

8 Channel Transmit and 16 Channel Receive Constellation Coil for 7T MRI

Ye Li1, Xing Yang1, Cem Murat Deniz2, Yudong Zhu1

1NYU School of Medicine, New York, United States; 2New York University, New York, United States

In this work, we propose a novel 8-channel transmit and 16-channel receive constellation coil for 7T MRI. The gradient-echo images were acquired with phase shimming. The SNR was calculated and then normalized by flip angle. Transmit power to achieve 90 degree flip angle on central coronal plane was measured. Transmit and reception performance of the constellation coil were compared with that of two commercial coils that is each composed of a birdcage transmit coil and a high-density receive-only phased array. Our results show that the constellation coil can achieve excellent SNR and transmit efficiency with a single structure.

Keywords

accommodating according achieve acknowledgments acquisition adapted addition alternating alternative although appeared around array arrays benefit better birdcage blue body capable capacitance capacitors carried channel chip chosen coil coils combinations commercial comparable concept conductors configuration consisted consists constellation containing continuum control copper coronal coverage cylindrical deep density diameter distribution efficiency enclosing evaluate excitation experimentally fabricated fabrication field flexible frequency gaps gradient grants guided highly holder ideal improve improved includes indicate indicated inner integrated investigate investigated investigation larger layer length located loop loops loss made maintained maintaining manipulated maps matched matrix measured medicine mini noise normalized nova offers optimize parallel part path pattern patterns performance phantom photo port ports potentially power products profiles proposed quality receive reception reduced remove replacing respectively robustness rows scalability scanner school selection shimming simplify simulation slice strategy structure structures studied suggest support supported surface theoretical third transmit ultimate utilized variation variations various vertical water whole width wrapped yang