Performance evaluation of RF coils integrated with an RF-penetrable PET insert for simultaneous PET/MRI.

ABSTRACT:

Purpose

An "RF-penetrable" PET insert that allows the MR body coil to be used for RF transmission was developed to make it easier for an existing MR center to achieve simultaneous PET/MRI. This study focuses on experiments and analyses to study PET/RF coil configurations for simultaneous PET/MR studies.

Methods

To investigate the appropriate RF coil design, a transmit/receive (TX/RX) birdcage coil and an RX-only phased-array coil (TX from body coil), both fitting inside the PET ring were built and characterized. For MR performance evaluation, B₁ field uniformity and MR image SNR were calculated. PET photon attenuation due to each coil was studied by means of CT-based attenuation maps and reconstructed PET images.

Results

When using the RX-only phased-array

SUBMITTER: Lee BJ 

PROVIDER: S-EPMC6289759 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature