Chantelle’s doctors think she might have a tumor, and they would like to use a brain-imaging technique that will provide them with an accurate image of her brain structure. The technique that they are most likely to use would be?A. computerized tomography (CT) scan. B. Magnetic resonance imaging (MRI).C. Magnetic resonance spectroscopy (MRS)D. Positron emission tomography (PET scan)

The correct answer is: B) Magnetic resonance imaging (MRI).

Explanation:

The MRI, abbreviated from Magnetic resonance imaging, is a medical imaging technique that produces images of great quality that make it a perfect asset in the diagnosis of many disorders.

MRI scanners process very accurate images thanks to the use of strong magnetic fields and radio waves. Unlike other imaging techniques, MRI does not involve the use of X-rays.

Abnormalities in the brain such as tumors are very hard to detect in simple imaging techniques. Computerized tomography (CT) scans are also helpful in detecting brain tumors, but they do not exhibit an image as accurate of the brain structure as the MRI does, especially of regions like the posterior cranial fossa, which contains the cerebellum and the brain stem. Magnetic resonance spectroscopy (MRS) can be of help as well but MRIs are more likely used in these sorts of situations. Positron emission tomography (PET scan) is a great imaging technique for detecting some types of cancer but not brain cancer. MRI is the best option for the detection of brain tumors.

easy

explanation:

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%