Which diagnostic procedure technique listed blow accurately describes what is done during an echocardiography?
a. electrodes are placed that take images showing the diastolic phase of the cardiac cycle and reveal whitened areas
b. uses ultrasound technology to evaluate heart muscle abnormalities, dysfunctions, and improper cardiac output
c. a radioisotope is injected into the central vein and scans then record images to evaluate changes in heart function
d. a radioisotope is injected and a planar singe-photon emission computed tomography scan is done to asses myocardial perfusion defects
Answer: B