Call it a new form of managed care. Doctors are increasingly using CT scans to diagnose disease and injury in their patients. Some call the CT scanner - the technology that produces computed ...

Like X-rays and PET scans, CT scans use ionizing radiation, which can damage DNA and cause cancer. Two other imaging technologies, MRI scans and ultrasound, do not use radiation. CTs are used for a ...

This Letter to the Editor of Medscape Radiology is written in response to a Medscape Clinical Commentary article developed by Dr. Michael Brant-Zawadzki (BZ) regarding radiation risk and medical ...

The Food & Drug Administration said today that reports it investigated of overexposure to radiation during CT scans were likely due to human error, not malfunction. The federal watchdog agency also ...

I am looking for concrete answers concerning the dangers of computed tomographic (CT) scans in small children. My son was recently given a brain CT scan in a emergency room. Thankfully they found ...

CHICAGO (Reuters) - A number of studies in the past year have raised concerns that Americans are exposed to too much radiation from CT scans, increasing their risk of cancer. A: CT, short for computed ...

An MRI takes pictures using magnetic waves, not radiation. X-rays and CTs (also called CAT scans) both use radiation, although the levels in a CT can be 50 or more times higher than in an X-ray. That ...

Several new studies suggest that kids who get computerized tomography (CT) scans--an imaging technique--are getting a higher dose of radiation than necessary and that this could lead to cancer later ...

CHICAGO (Reuters) - Patients are receiving the equivalent of 600 chest X-rays when they get CT scans for heart disease and not enough clinics are using known ways to reduce this exposure, researchers ...

A new CT (computed tomography) scan method can reduce radiation dose by splitting a full C-ray beam into thin and small beamlets. A team of researchers at the University College London (UCL) ...