Abstract
The aim of this study was to assess a novel 60-channel receiver body coil (B60) setup for accelerated contrast-enhanced abdominal magnetic resonance imaging (MR) imaging with respect to signal-to-noise ratio (SNR) and image quality using high parallel-imaging technique (PAT) factors in comparison to a standard 30-channel coil setup. All imaging data were acquired on a 3 T MR scanner using a novel B60 receiver coil setup in comparison to a standard 30-channel setup serving as reference standard. Phantom measurements were performed to systematically evaluate SNR and geometry factor performance in an ex vivo setting. To assess the in vivo application, additional measurements in 5 healthy volunteers and 17 patients were performed using a 3-dimensional T1w gradient-echo sequences with different acceleration factors. At first, the volunteers were examined. In a second step, standard contrast-enhanced abdominal images were acquired in the 17 patients, who were randomly assigned into 2 groups (group A: 60-channel, n = 8; group B: 30-channel, n = 9). Image quality, noise, lesion conspicuity, and artifacts were assessed by 2 radiologists independently on a 5-point Likert scale (5 = excellent). The phantom study revealed substantial advan...Continue Reading
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