Wayne Forrest[email protected]Nuclear MedicineAre radiation dose guidelines scaring patients?Are guidelines urging healthcare practitioners to reduce radiation dose when imaging patients simply inducing radiation phobia for procedures that have little to no health risk? That's the provocative stance of a new article published in the January 2017 issue of the Journal of Nuclear Medicine.January 12, 2017Nuclear MedicinePET/CT may have found cardiovascular event triggerPET/CT scans have identified activity in a stress-related structure in the brain that could be linked to an increased risk of cardiovascular disease, according to a study published online January 11 in Lancet.January 11, 2017MRIFDA issues MRI warning on implantable infusion pumpsAfter receiving reports of injury and death, the U.S. Food and Drug Administration (FDA) has issued a warning about patients with implantable infusion pumps undergoing MRI scans.January 11, 2017MRIGroup calls for global research effort into gadoliniumTwo European researchers are forging ahead with their proposal to collect clinical experiences and outcomes with gadolinium-based contrast agents (GBCAs) and store the information in a worldwide database. The ultimate goal is to further advance research into GBCA safety, as outlined in the January issue of Radiology.January 11, 2017MRISwissray set to join MRI market with wide-bore scannerSwissray International is embarking on a new path in 2017. The longtime player in the digital radiography segment is moving into MRI with its first scanner, a wide-bore system called SR Pulse 710 that is set to begin shipping later this year.January 9, 2017Nuclear MedicinePET/CT remains best option for head, neck cancerWhile PET/MRI shows great promise in a multitude of clinical applications, German researchers have found that the hybrid modality's performance in evaluating head and neck cancer appears no better than that of tried-and-true PET/CT.January 8, 2017Molecular ImagingAuntMinnie.com Molecular Imaging InsiderJanuary 4, 2017MRIWhy are pediatric MRI scans on the rise in the ED?The desire to avoid exposing pediatric patients to CT's ionizing radiation appears to be powering increased use of MRI at one New York City hospital's emergency department (ED). The shift to the modality is also prompting the facility to adjust resources to meet times of greatest volume and demand.December 26, 2016MRIDWI-MRI could help show gene expression in tumorsResearchers from California have developed a way to use diffusion-weighted MR imaging (DWI-MRI) to noninvasively monitor gene expression in tumor cells in living tissue, according to a study published online December 23 in Nature Communications.December 22, 2016MRIPediatric MRI safety needs to target youngest patientsPediatric patients younger than 6 years old are the most vulnerable when it comes to MRI safety issues, according to a study performed at Massachusetts General Hospital in Boston and presented at RSNA 2016. The findings have prompted a call for quality improvements when it comes to scanning kids.December 20, 2016Previous PagePage 73 of 239Next PageTop StoriesMRIWatching a movie during MR imaging reduces kids' need for sedationThe findings are good news for pediatric patients, who often struggle to remain still during an MRI exam.Practice ManagementWhite paper endorsed by ACR, SIIM stresses cybersecurityMRIIs imaging being used to its full potential to diagnose dementia?MRIMRI shows promise profiling hepatocellular carcinoma tumorsWomens ImagingMRI-based DL model improves ovarian lesion classification
![Pittsburgh Compound B (PiB) PET distribution volume ratio (DVR) images were projected onto fsaverage surfaces from FreeSurfer and surface smoothed, with PiB (amyloid) slope maps created using ordinary least squares regression (time as only factor) and mixed effects models for 154 participants run at each vertex (P < .01; model: longitudinal Geriatric Depression Scale score estimated by amyloid slope × time + [sex + education + age] × time). This map visualizes the results of the linear mixed-effects models (t score of the main variable, amyloid slope × time) such that regions with a greater t score (red) represent areas in which greater depressive symptoms are associated with greater amyloid accumulation (amyloid slope). Anatomical landmarks are provided: L refers to the left hemisphere, R refers to the right hemisphere, and additional labels indicate the anterior and posterior ends of the brain. Images available for republishing under Creative Commons license (CC BY 4.0 DEED, Attribution 4.0 International) and courtesy of JAMA Open Network.](https://img.auntminnie.com/files/base/smg/all/image/2024/08/PET_depression.66cf997f7e441.png?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
