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Getting a single CT scan during childhood doesn't appear to increase a child's risk of a future brain tumor, leukemia or lymphoma, new research finds, but getting four or more scans more than doubles the chances.

CT scans use low-dose radiation, which can damage cells. Past evidence about the risks of cancer from these scans in children 18 and younger was conflicting, researchers said.

When waiting for medical test results, days can feel like an eternity.

In a new survey, patients overwhelmingly say they'd like their results immediately -- even if their provider has not yet reviewed them and even if the news is bad.

In April 2021, new rules went into effect requiring health care providers in the United States to make all results and clinical notes available immedi...

Ordering special heart scans before a major surgery to gauge risks may be unnecessary, a new study suggests.

Researchers found that surgeons can instead estimate patients' risk of heart attack or death by reviewing existing images of the chest captured months earlier during screening for lung issues, such as pneumonia or cancer.

This could avoid surgery delays and increased costs, w...

U.S. hospitals are running low on contrast dye injected into patients undergoing enhanced X-rays, CT scans and MRIs.

The fluid, which makes the routine but potentially life-saving scans readable, helps doctors identify clots in the heart and brain. The shortage is expected to last until at least June 30, t...

Wolfgang Lehner always considered himself "a triple threat" when it came to cancer risk.

One grandfather died of lung cancer in the 1970s. His other grandfather had his own bout with stomach cancer. And Lehner himself was a smoker.

Although the New York City cinematographer quit smoking in 2010, at age 51, he never quit worrying about lung cancer.

In 2017 his worst fear was r...

New research offers fresh proof that the COVID-19 pandemic delayed cancer diagnoses in the United States, increasing patients' risk for poor outcomes.

For the study, researchers analyzed data from more than 9 million patients at over 1,200 Veterans Affairs (VA) medical facilities.

Procedures to diagnose cancer were used less often and there were fewer new cancer diagnoses in 2020 t...

They once ruled the planet, but even the mighty Tyrannosaurus rex could suffer from bone disease, new research shows.

Scientists used imaging to examine the lower left jaw of a fossilized T. rex skeleton discovered in Montana in 2010. The skeleton, which is about 68 million years old and one of the most complete skeletons of the carnivorous dinosaur ever found, is at the Museum für Nat...

Older blood thinners, especially when taken in combination with daily low-dose aspirin, are associated with a higher risk of brain bleeds and death after hospital discharge in patients treated for head injury, new research shows.

The risk fell when patients were taking one of the newer blood thinners, said the authors of a study presented Tuesday at the annual meeting of the Radiological ...

CT scans expose patients to radiation even as they help doctors spot serious health problems. Now a new study finds low-dose scans can readily spot appendicitis while reducing patients' radiation exposure.

"The results of this study suggest that the diagnostic CT scan radiation dose can be significantly decreased without impairing diagnostic accuracy," said lead study author Paulina Salmi...

Many middle-aged adults with apparently healthy hearts have a "silent" buildup of fatty deposits in their arteries, a large, new study shows.

Researchers found that of more than 25,000 50- to 64-year-olds, about 42% had signs of atherosclerosis -- a buildup of "plaques" in the arteries that can lead to a heart attack or stroke.

That was despite the fact that none had any history of ...