Researchers have shown that a CTA scan (a scan of the arteries) can be performed with a contrast medium volume reduction of up to 75% and up to 50% reduction in radiation dose. CT scans using contrast ...

Pretranscatheter aortic valve replacement-CT angiography safely deferred the need for invasive coronary angiography in 53% of patients, according to a study published May 21 in Circulation: ...

Patients who underwent coronary computed tomography angiography were more likely to later have invasive cardiac procedures and higher costs compared to patients who underwent stress testing, according ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. A routine scan used to evaluate some acute stroke patients can also detect SARS-CoV-2 infection in ...

Two steps involved in a SPECT scan are: Injection of a radioactive substance: An intravenous injection of a radioactive tracer will be administered and the patient has to wait for it to spread ...