Which of the following is a noninvasive diagnostic modality that allows visualization of anatomic structures without the use of radioactive x-rays?
A) Magnetic resonance imaging
B) Computed tomography
C) Angiocardiogram
D) Myelography

Question

Quizplus · Accepted Answer

Magnetic resonance imaging (MRI) is a noninvasive diagnostic modality that allows visualization of anatomic structures without the use of radioactive x-rays. A powerful magnetic field and radiofrequency pulses are combined to produce a radio signal in the body that can be detected and processed electronically to provide images on a computer monitor. Positron emission tomography (PET) and single photon emission computed tomography (SPECT) are highly specialized nuclear medicine techniques that use different types of tracers and scanners than conventional nuclear medicine. The highly specialized radiographic procedures that display blood vessels are collectively known as angiography. Myelography involves injection of iodine compounds and sometimes air into the spinal canal to demonstrate pathologic spinal conditions, such as tumors and herniated intervertebral disks.

Which of the Following Is a Noninvasive Diagnostic Modality That