Cumulative exposure to radiation from CT scans can increase the risk for cancer by as much as 12 percent, Harvard University researchers report.
Widely used as a diagnostic tool, CT scans provide detailed images of organs, allowing more accurate diagnoses of conditions such as cancer. But CT involves a higher radiation dose than most other imaging [...]

By using iron in blood as a contrast MRI agent, researchers at Imperial College London imaged bleeding inside hearts in post-MI patients. The use of the new technique opens doors to studying how bleeding affects the heart after a heart attack, and what the clinical strategies in such circumstances might be.
From Imperial College London:
For the [...]