A CT scan of healthy lungs looks typical in size with no inflammation, allowing the diaphragm to dome. Lungs with emphysema can look overinflated, with muscle loss, making the diaphragm misshapen. The ...

Cardiologists say many adults overlook a simple test that can detect early signs of heart disease.

Our goal in designing this study was to attempt to document a clinical means of evaluating patients with minor head injury, possibly reducing the cost of their evaluation. We hypothesized that ...

Computed tomography (CT or CAT) scans help doctors detect everything from cancer to kidney stones. But some physicians are raising concerns about the safety of such procedures — most notably, an ...