Older people who have depression and mild cognitive impairment are more likely to show biomarker and brain imaging changes linked to accelerated brain aging and dementia, according to a study in the journal Molecular Psychiatry. The study examined blood samples and PET and MRI data from 36 patients with MCI and 44 with normal cognitive function, all of whom had been treated for depression. Understanding how the brain works in patients with MCI and depression could help doctors find ways to stall progression to dementia. {read more here}

A high uptake of FDG could signal glucose hypermetabolism in muscle, making FDG PET a novel addition to more conventional methods of detecting denervation, according to a study published Aug. 7 in theJournal of Nuclear Medicine . {read more here}

Positron emission tomography (PET) after one cycle of chemotherapy has a high prognostic accuracy in Hodgkin lymphoma and may help select patients for less-intensive treatment, researchers have found. {read more here}

PET/CT with FDG-labeled leukocytes may detect infection in patients with acute pancreatitis, according to a study published in the August issue of the Journal of Nuclear Medicine.  The study from the Postgraduate Institute of Medical Education and Research in Chandigarh, India, included 41 patients (28 men and 13 women, ages 21-69) with acute pancreatitis and radiological evidence of fluid collection in or around the pancreas (JNM, August 2014, Vol. 55:8, pp. 1267-1272).  {read more here}