Toward imaging the body at 10.5 tesla.

ABSTRACT:

Purpose

To explore the potential of performing body imaging at 10.5 Tesla (T) compared with 7.0T through evaluating the transmit/receive performance of similarly configured dipole antenna arrays.

Methods

Fractionated dipole antenna elements for 10.5T body imaging were designed and evaluated using numerical simulations. Transmit performance of antenna arrays inside the prostate, kidneys and heart were investigated and compared with those at 7.0T using both phase-only radiofrequency (RF) shimming and multi-spoke pulses. Signal-to-noise ratio (SNR) comparisons were also performed. A 10-channel antenna array was constructed to image the abdomen of a swine at 10.5T. Numerical methods were validated with phantom studies at both field strengths.

Results

Similar power efficie

SUBMITTER: Erturk MA 

PROVIDER: S-EPMC5191924 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature