A subarachnoid hemorrhage was demonstrated on a head CT scan. Investigations. Physical examination, laboratory tests, brain CT scan, brain MRI scan, brain magnetic resonance angiogram, brain ...

"It's like magic." A cardiac CT angiogram is a test that essentially conducts "a CAT scan for the heart," said Dr. Aeshita Dwivedi, a cardiologist at Northwell Lenox Hill Hospital. The full-body ...

Coronary artery computed tomography (CT) angiography (CTA) is a non-invasive technology that can directly image coronary artery anatomy, while decreasing some of the risks associated with an ...