A heart CT scan uses X-rays to create an image of the heart and blood vessels. Healthcare professionals may also refer to it as cardiac CT angiography. A CT scan is a noninvasive imaging procedure.

With more and more groups registering complaints about the new invasive scanning procedures at airports, it is time for the Transportation Security Administration and Department of Homeland Security ...

THE diagnosis of massive pulmonary embolism is frequently difficult and always uncertain, primarily because the symptoms and signs may mimic those of some other diseases, such as myocardial infarction ...

» Does the patient exposure from a CT procedure depend on the number of slices? Before answering this question, let’s compare two radiation quantities involved. First, dose, or absorbed dose, ...