Related Experiment Video
Updated: Oct 13, 2026

Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures
Published on: October 20, 2009
Anatomic MR images obtained with silent sequences
F Girard1, V L Marcar, F Hennel
1Department of Magnetic Resonance, University Children's Hospital Zurich, Switzerland. frank.girard@kispi_unizh.ch
Abstract:
The authors evaluated silent magnetic resonance (MR) imaging sequences for their suitability in providing high-spatial-resolution anatomic images that are of sufficient quality to be useful in a clinical setting. The authors compared the images obtained with a silent rapid acquisition with relaxation enhancement (RARE) sequence to its standard counterpart with respect to signal-to-noise ratio, distribution of gray level, and spatial resolution. No real differences were observed between the standard and the silent RARE MR images. Anatomic images were also acquired with a silent spin-echo sequence. Acoustic noise levels with the silent sequences were at least 22 dB (A-weighted scale) lower than those with standard sequences, without loss of image quality.
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