May 21, 2012: Screening for Lung Cancer Might Benefit Those at Highest Risk
But it's not appropriate for most people, researchers say

May 09, 2012: FDA Seeks Less Radiation for Kids Getting X-Rays, CT Scans
Manufacturers asked to take their safety into account with use of machines, design of new scanners

May 01, 2012: Study Downplays Risk of CT Scans
Death from disease is much more likely, preliminary research finds

April 25, 2012: Low-Radiation CT Scans Effective at Spotting Appendicitis: Study
Approach cuts cancer risk without raising number of unnecessary surgeries

April 13, 2012: CT Scans Deliver More Radiation to Obese People: Study
However, risk of side effects might not rise, expert says

April 09, 2012: Lung Cancer Screening Might Pay Off, Analysis Shows
Study suggests CT scans of those at high risk for developing disease could be cost-effective

April 06, 2012: Diagnostic Scans Tied to Radiation Risk for Gastro Patients
Irish study finds rise in radiation exposure over decade parallels increased use of CT

April 04, 2012: Physician Groups Call for Fewer Medical Tests
Many patients could safely avoid X-rays, MRIs, heart stress tests and other common procedures, docs say

March 26, 2012: CT Scans Can Spot Heart Trouble Fast
Study shows chest-pain patients who are not having an attack could be discharged safely sooner

March 13, 2012: Many Docs Order Unneeded Lung Cancer Screening Tests: Survey
Not only wasteful, tests can lead to unnecessary treatments for patients

March 06, 2012: Brain Scans Overused on U.S. Stroke Patients, Study Says
Most get both MRI and CT imaging, adding to rising medical costs

March 06, 2012: Computerization May Not Curb Medical Tests, Costs
Doctors order more scans if they have easy access to results, study shows

March 05, 2012: Whole-Body CT Scans Can Miss Traumatic Injuries: Study
ER doctors should wait 30 minutes before ordering them, researchers say

November 02, 2011: Modern Technology Reveals Clues From Egyptian Mummy
It was a child from a wealthy family who died young, researchers report

October 25, 2011: CT Scans May Pick Up COPD Early in Smokers
But whether it's cost effective isn't clear, expert says

October 14, 2011: White Kids More Likely to Get CT Scans After Head Trauma
Differences only found among blacks, whites, Hispanics in low-risk cases

August 01, 2011: For Many, Risks of Lung Biopsy May Outweigh Benefits: Study
Bleeding, collapsed lung are complications associated with the procedure, researchers say

July 12, 2011: Bladder Cancer Patients Not Getting Recommended Care: Study
Complex guidelines rarely followed in full for high-grade tumors, researchers find

June 17, 2011: Kids With Minor Head Injury May Not Need Hospitalization
OK to discharge most children with normal CT scan after minor blunt trauma, study suggests

May 27, 2011: It's Not Just Fat: Hip Bones Widen With Age, Too
Growth of pelvic bones may continue to age 79, increasing weight & waist size, researchers find

May 23, 2011: CT Heart Scans No Benefit to Patients Without Symptoms
Study suggests it can lead to unneeded aggressive, invasive procedures and treatments

May 17, 2011: Scans of Egyptian Mummies Show Heart Disease Was Ancient Malady
Findings suggest that problem stems from more than 'modern lifestyle,' expert says

May 09, 2011: Scan Technology Tied to Overtreatment of Clots in Lungs
Anti-clotting drugs may cause harm in patients with low risk from embolism, researchers say

May 09, 2011: Child's Head Injury Doesn't Always Need CT Scan: Study
Observing child in ER can minimize radiation exposure without compromising care, researchers say

May 04, 2011: Breast Shield Better for Women Getting Chest CT Scan: Study
Radiation exposure reduced more than with other technique, researchers find

May 03, 2011: Expert Suggests Skipping Pelvis When Scanning for Clots
Technique would cut radiation exposure but not harm diagnosis, study suggests

April 05, 2011: As CT Scans of Kids Soar, Experts Urge Oversight
Imaging most often ordered for head injury, abdominal pain and headache, study finds

March 04, 2011: Extra Tests Not a Deterrent to Experimental Cancer Therapy
Some patients in clinical trials willing to undergo up to 2 tumor biopsies per study, researchers find

February 15, 2011: Fear of Lawsuits May Be Leading to Extra Medical Tests
'Defensive imaging' is wasting health-care resources, expert says

February 07, 2011: Heart Scans May Raise Cancer Risk, Study Finds
Patients who had them were more likely to develop malignancies in chest, stomach area

January 31, 2011: Most X-Rays, Scans Unnecessary for Acute Low Back Pain
Expensive tests don't improve outcomes, have potential for harm, says physician group

January 04, 2011: U.S. Kids Getting Lots of Radiation Scans, Study Finds
Experts say more X-rays, CT scans require greater effort to ensure safety

December 16, 2010: ER Patients Put Faith in CT Scans
But most underestimate the degree of radiation exposure, study finds

December 01, 2010: CT Scans May Pose Less Cancer Risk Than Thought, Study Contends
But expert still advises using as little radiation as possible

October 05, 2010: MRI, CT Scans for ER Patients Triple Over Decade
But researchers question whether patients benefit

September 29, 2010: Chest Scans May Incidentally Help Spot Heart Disease Risk
Radiologists reviewing CTs obtained for non-cardiac issues can assess heart health using same image

August 17, 2010: Less Invasive Biopsies Gain Favor
Most now being done through the skin, guided by imaging, researchers say

July 19, 2010: Parents Can Help Limit Kids' Exposure to Medical Imaging
Expert advises asking some questions before allowing X-rays or CT scans

July 12, 2010: New Guidelines Urge Use of MRI Over CT Scan in Stroke Patients
American Academy of Neurology now says diffusion MRI best for detecting blockage

July 09, 2010: Cumulative Radiation Doses Seen in Cardiac Imaging
But experts say heart tests save lives

June 15, 2010: Docs Should Assess Lung Clot Risk Before Ordering Scan
Most who get CT angiography for suspected pulmonary embolism test negative, researchers find

May 03, 2010: Radiation Risks Nearly Double for Younger CT Scan Patients
Doctors should consider age when evaluating risks, study suggests

April 27, 2010: Imaging Costs Soar for Medicare Cancer Patients
Whether more scans are wasteful or improve outcomes isn't known, experts say

March 31, 2010: FDA Hears Views on Risks of High Tech Scanners
Agency looking to increase safety of increasingly popular imaging procedures such as virtual colonoscopy

March 31, 2010: Too Much Radiation? The FDA Wants to Know
Agency set to open two days of public comment on risks from scans

March 29, 2010: 'Virtual' Colonoscopy Catches Cancers Outside the Colon
Study found it caught unsuspected tumors in one of every 200 patients

March 22, 2010: Medical Scans Used Most in Atlanta, Least in Seattle
Study finds wide variation in MRI, CT uptake depending on region

March 01, 2010: Primary Care Doctors Ordering Unnecessary Scans
Study suggests 1 in 4 such MRIs, CTs aren't appropriate

February 23, 2010: New Heart CT Scans Deliver Far Less Radiation: Study
Imaging entire heart in one sitting reduces exposure time

February 11, 2010: Quick Chest Pain Test Simplifies Discharge Decision
CT scan lets doctors see any blockage in arteries, study finds