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.
What is an MRI? Magnetic resonance imaging (MRI) is an imaging test that uses a magnetic field and pulses of radio waves to take pictures of internal organs and structures. What are some common reasons why an MRI is performed? MRIs are often used to detect tumors, infections, internal bleeding, and internal injuries.