WEDNESDAY, May 22 (HealthDay News) -- Physicians weighing the benefits and risks of CT scans for detecting lung cancer now have more information to help with the decision. A new analysis of a 2010 U.S. study finds that low-dose CT scans pick up significantly more lung tumors than chest X-rays do.

WEDNESDAY, May 22 (HealthDay News) -- Children and teens exposed to radiation during CT scans are 24 percent more likely to develop cancer, according to a large, long-term study.

TUESDAY, May 21 (HealthDay News) -- Finding early signs of lung cancer was once next to impossible, but a new study adds to a growing body of evidence suggesting that screening with low-dose CT scans may help spot the beginnings of disease in high-risk patients.

THURSDAY, May 2 (HealthDay News) -- Abnormal brain wiring may explain why some people become so fixated on their appearance that their obsession makes it hard for them to function, a new study suggests.

THURSDAY, May 2 (HealthDay News) -- The brains of children with conduct problems don't react in a normal way when they see images of other people in pain, a new study finds.

THURSDAY, May 2 (HealthDay News) -- Women who have a breast biopsy that turns out to be benign are typically told to undergo another imaging test, such as a mammogram, in six to 12 months. Now, a new study suggests that the longer interval might be better.

TUESDAY, April 23 (HealthDay News) -- Atrophy of a key brain area may become a new biomarker to predict the onset of multiple sclerosis, researchers say. If so, that would add to established criteria such as the presence of brain lesions to diagnose the progressive, incurable disorder.

MONDAY, April 15 (HealthDay News) -- Adding computer-aided detection to mammograms finds more early, noninvasive cancers and helps detect invasive cancers at earlier stages, according to a large new study. But the jury's still out as to how worthwhile the extra technology is overall.

MONDAY, April 15 (HealthDay News) -- Including photos of patients' faces with their X-ray images led to a fivefold decrease in patient-identification errors, according to a new study.

SUNDAY, April 14 (HealthDay News) -- A method designed to target, freeze and destroy a tumor's cellular function seems effective in combating lung tumors, a small ongoing study finds.