Whole body scan. Coloured magnetic resonance imaging (MRI) scan of the whole body of a man in coronal (frontal) section. His head and brain (upper centre) are seen in sagittal (side) section. The skeleton (yellow) is visible as the long bones of the limbs and the vertebrae of the spine. In the chest, the lungs are red. In the abdomen, the lobes of the liver are pale pink, while the flattened bladder (red) is in the pelvis. This whole body image is the product of a number of MRI scans made along the length of the body and then combined. MRI scanning uses radio waves and a powerful magnetic field to produce slice" images through the body."