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.
Overview. MRI (magnetic resonance imaging) is a noninvasive diagnostic test that takes detailed images of the soft tissues of the body. Unlike X-rays or CT, images are created by using a magnetic field, radio waves, and a computer.R angiogram (MRA). MRI can be used to view arteries and veins. Standard MRI canât see fluid that is moving, such as blood in an artery, and this creates âflow voidsâ that appear as black holes on the image. Contrast dye (gadolinium) injected into the bloodstream helps the computer âseeâ the arteries and veins.