3.0 T MRI diagnostic features: Comparison with lower magnetic fields

Abstract

3.0 T magnetic resonance (MR) units are optimized for high-resolution morphological and functional imaging, especially of the head and neck, and offer a number of advantages over lower-field systems, such as a higher signal/noise ratio (SNR) and greater spatial and temporal resolution (Fig. 3.1) [1-4]. Drawbacks include greater specific absorption rates (SAR), acoustic noise, and dielectric resonance, although in the more recent imagers these problems have largely been resolved by improvements in hardware and software. © 2006 Springer-Verlag Berlin Heidelberg.