Measure: To estimate the cranial capacity of each skull in the Gizmo, measure the area of the part of the cranium that houses the brain. This part of the cranium is roughly behind the red line in the diagram at right.
Chemical dyes are sometimes injected into patients prior to an MRI (magnetic resonance imaging) to enhance internal images. However, certain widely used MRI dyes may cause a number of side effects, including a serious, potentially fatal disease known as nephrogenic systemic fibrosis, or NSF.
However, to detect cancer, small tumors or a damaged blood vessel, MRI scan with contrast is recommended. In this procedure, a contrast (dye) is injected that highlights the body part under consideration. This helps to improve the quality of MRI scan images. Side Effects.n allergic reaction to the MRI contrast medium, in the form of inflammation or rash at the injected site has also been reported. Advertisement. An MRI, or magnetic resonance imaging, is a method of scanning the internal structure of the body to detect any abnormalities.