Sue Carroll has seen some grim things in her time as a bush nurse.Head injuries and skull fractures are among the worst and ...

In 1979, Hounsfield won the Nobel Prize in Physiology or Medicine for his role in the development of computer-assisted ...

CT angiography sensitivity ranged from 75.5–87.3%, while specificity held near 90% across scales. Sensitivity refers to how well a test finds its target, in this case, brain death.

Medical imaging scans that create detailed images of the body’s internal structures are widely used in medicine. Doctors need them to detect and manage certain types of cancer, assess the extent of ...

For example, low-dose chest CT scans performed for lung cancer screening use lower doses than multi-phase abdominal/pelvic CT scans that are required to stage a person with pancreatic cancer.

CT scans are quick, painless, non-invasive tests that can identify everything from brain tumors to injuries from an accident. But a new study published in the journal JAMA Internal Medicine shows ...

They proposed that of the estimated 61.5 million people who got CT scans in 2023, eventually 103,000 would develop cancer linked to radiation exposure.

A chest X-ray delivers around 0.1 mSv (millisievert) of radiation, while a CT scan can deliver around 10 mSv, which is 70 to 100 times more radiation in one scan.

We do have a problem with doing too many CT scans. Studies looking at whether CT scans were appropriately ordered suggest that somewhere between 8 and 36 percent of them are not needed.

A new study published in the journal JAMA Internal Medicine has found that the 93 million CT scans performed in 2023 in the U.S. are projected to cause about 100,000 future cancers.

NPR's Ayesha Rascoe asks Dr. Rebecca Smith-Bindman about her research indicating CT scans, which emit radiation, will cause some 100,000 cases of cancer annually.