In this example, the infinitive phrase functions as an adjective because it modifies the noun, you. The best method to fix the car is to take it to the shop. In this example, the infinitive phrase functions as an adjective because it modifies the noun, method.
Before the use of gamma rays, a high-energy, concentrated dose of X-rays was used to treat some cancers. X-rays are still used to identify tumours. X-rays are also used in CAT scans. âCATâ stands for Computer Axial Tomography and generates a three-dimensional image from a large series of two-dimensional X-ray images.
The brain, spinal cord and nerves, as well as muscles, ligaments, and tendons are seen much more clearly with MRI than with regular x-rays and CT; for this reason MRI is often used to image knee and shoulder injuries. In the brain, MRI can differentiate between white matter and grey matter and can also be used to diagnose aneurysms and tumors. Because MRI does not use x-rays or other radiation, it is the imaging modality of choice when frequent imaging is required for diagnosis or therapy, especially in the brain. However, MRI is more expensive than x-ray imaging or CT scanning. One kind of specialized MRI is functional Magnetic Resonance Imaging (fMRI.)