3T MRI in pediatrics

May 17, 2011

3T MRI is being increasingly performed for clinical purposes. The increased SNR is a significant advantage in pediatrics – improved spatial and temporal resolution assist in overcoming the major anatomic, physiologic and behavioural challenges of imaging children. 3T MRI has the potential to image all the systems in pediatrics. However, optimising the parameters with due consideration to specific pediatric features, such as the increased water content of non myelinated brain, is essential. The neonatal brain and pediatric spine are difficult to image at 3T. Several factors also limit cardiac imaging at present. Further improvements in coil technology and newer sequences may help overcome the challenges that remain. On the other hand, some 3T artefacts inherent to specific anatomic regions, like the dielectric effects encountered in adult abdominal imaging, are less problematic in pediatrics due the smaller size.
For more information, see this white paper

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Some researchers from the University of California, San Francisco, have conducted a study with 236 asymptomatic patients to investigate the relationship between sports and knee abnormalities. Even, when further research is needed, the study shows a correlation between sports with high impact on the knees (running, jumping, skying) and cartilage deterioration. Of course, this is not a surprising discovery, but it shows clinical evidence of the effect of some sports on the human body: a warning for extreme sporters?
More information can be found at http://www.diagnosticimaging.com/conference-reports/rsna2009/display/article/113619/1491817

Radiographics October 2009 issue includes a very comprehensive review on the state-of-the-art abdominal MR Imaging. It is worthwhile to take a look at http://radiographics.rsna.org/content/current

Continued research in high field cardiac imaging is yielding good results, with improvements in image quality and reduced scan times. Gains in spatial and temporal resolution with 3T facilitate targeted tissue characterization and access to physiological information.This could lead to MRI replacing digital subtraction angiography for vessel flow and assessment prior to bypass surgery.1 This approach has been impossible at 1.5T. For more detailed information on the benefits and challenges of 3T, go to: http://www.diagnosticimaging.com/display/article/113619/1470150?pageNumber=1