A study in the September issue of the American Journal of Roentgenology says that whole-body magnetic resonance imaging (MRI), which is highly accurate at detecting soft-tissue abnormalities, may serve a role in detecting suspected child abuse in infants.
Whole-body MRI does not use ionizing radiation, but employs a magnetic field, radio frequency pulses, and a computer to produce detailed images of organs, soft tissues, bone, and virtually all other internal body structures.
The diagnosis of abuse relies heavily on the presence of skeletal injuries, and high-quality skeletal surveys (a series of X-rays of all the bones in the body) are recommended to visualize the often subtle high-specificity fractures seen in infant abuse. Bruises are the most common sign of physical abuse, but subcutaneous tissue and muscle injuries are not currently evaluated with a global imaging technique in living children.
"Although our study indicates that whole-body MRI is currently unsuitable as a primary global skeletal imaging tool for suspected imaging abuse, it may be useful as a supplement to the skeletal survey in selected cases, particularly with regard to soft tissue injuries," said Perez-Rossello.