PET-designed treatment lowers risk of drug abuse
PET imaging of the brain demonstrates that a slow-release formula of a drug used to treat attention-deficit/hyperactivity disorder is as effective as a rapid-release version and less likely to be abused.
PET imaging of the brain demonstrates that a slow-release formula of a drug used to treat attention-deficit/hyperactivity disorder is as effective as a rapid-release version and less likely to be abused.
Dr. Thomas J. Spencer, assistant director of the pediatric psychopharmacology unit at Massachusetts General Hospital, and colleagues used carbon-11 altropane PET to investigate a new once-a-day capsule developed to slowly release methylphenidate.
The drug boosts dopamine activity in the frontal cortex and improves the ability to pay attention. But it may also lead to patient abuse.
The researchers evaluated 12 healthy adults randomly assigned to receive immediate-release or osmotic-release methylphenidate. PET showed that the 90-mg osmotic-release capsule produced the same effects as 40 mg of immediate-release methylphenidate. They reported their results in the March American Journal of Psychiatry.
Considering Breast- and Lesion-Level Assessments with Mammography AI: What New Research Reveals
June 27th 2025While there was a decline of AUC for mammography AI software from breast-level assessments to lesion-level evaluation, the authors of a new study, involving 1,200 women, found that AI offered over a seven percent higher AUC for lesion-level interpretation in comparison to unassisted expert readers.
