Asked by alexis babino on Feb 18, 2024
Verified
June will soon undergo a magnetic resonance imaging (MRI) scan.Which of the following will most likely occur during the scan?
A) Narrow X-ray beams will pass through June's head, and the amount of radiation absorbed by each beam will be measured.
B) A radioactive isotope will be injected into June's brain in order to show the different levels of activity in specific areas of her brain.
C) Several images will be presented to June, which she will have to reconstruct with a pencil and paper.
D) A magnetic field will realign the hydrogen atoms in June's brain, allowing the computer to read the signals and construct images of her brain.
Magnetic Resonance Imaging (MRI)
Method of measuring both brain structure and brain function through the construction of a magnetic field that affects hydrogen atoms in the brain, emitting signals that a computer then records and uses to produce a three-dimensional image of the brain.
- Recognizing the use of magnetic fields in an MRI scan.
- Understanding the role of hydrogen atoms in an MRI scan.
- Understanding the purpose of a magnetic resonance imaging (MRI) scan.
Verified Answer
MP
Michael PalkoFeb 18, 2024
Final Answer :
D
Explanation :
An MRI scan uses a strong magnetic field and radio waves to align and then disrupt the alignment of hydrogen atoms in the body, allowing for the construction of detailed images of the body's structures, including the brain. Option A describes a CT scan, option B describes a PET scan, and option C describes a cognitive test.
Learning Objectives
- Recognizing the use of magnetic fields in an MRI scan.
- Understanding the role of hydrogen atoms in an MRI scan.
- Understanding the purpose of a magnetic resonance imaging (MRI) scan.