Comparing signal-to-noise ratio for prostate imaging at 7T and 3T.

ABSTRACT:

Background

In MRI, the signal-to-noise ratio (SNR) theoretically increases with B₀ field strength. However, because of attenuation of the radiofrequency (RF) fields at 7T, it is not certain if this SNR gain can be realized for prostate imaging.

Purpose/hypothesis

To investigate the SNR gain in prostate imaging at 7T as compared with 3T. It is expected that SNR will improve for prostate imaging at 7T compared with 3T.

Study type

Prospective.

Subjects

Four healthy volunteers and one prostate cancer patient.

Field strength/sequence

All subjects were scanned at 3T and at 7T using optimal coil setups for both field strengths. For all volunteers, proton density-weighted images were acquired for SNR analysis and actual flip angle imaging (AFI) B 1 +

SUBMITTER: Steensma BR 

PROVIDER: S-EPMC6587835 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature