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Dave Pearson
Senior Writer
Prior to joining TriMed in 2014, Dave was an independent reporter and copywriter. He has worked in journalism, public relations and marketing for more than 25 years, concentrating on business, healthcare, technology and religion. He has also worked extensively in fundraising communications, freelancing for local, national and international charities.

The same sense of eager anticipation mixed with abject fear that machine learning has been driving into the heart of radiology is piercing pathology too.

 - BrainPET2

The more tau accumulation in the brain, the greater the likelihood that neuroimaging will reveal similarly elevated levels of brain beta amyloid. However, the buildup of these proteins does not affect the cognitive status of patients with Parkinson’s disease, according to a PET-based study published online Dec. 11 in JAMA Neurology.

 - Brain_MRI22

The NIH has announced the formation of a five-year, $70 million effort to organize, coordinate and otherwise accelerate new research into Alzheimer’s disease and other dementias.

 - Molecular_Art

Patients who have advanced liver cancer with blockage or narrowing of the blood vessel that brings blood to the liver from the intestines—i.e., portal vein thrombosis—are safely and effectively treated by interventional radiologists administering the isotope yttrium-90 (Y90) for radioembolization, according to a study conducted at Northwestern University and published online Dec. 7 in the Journal of Nuclear Medicine.

Scientists at Arizona State University have demonstrated the clinical possibilities of live-cell computed tomography (LCCT), successfully completing a proof-of-concept project aimed at detailing the nuclei and mitochondria in cancer and immune-system cells—live and in 3D.

 - Weightlift

While the benefits of resistance training on musculoskeletal health are on daily display in any weightlifting room, the question of how much good all those sets and reps do for the heart has been open. Now comes an imaging-based answer from Germany, where researchers using MRI found measurable cardiac changes in a randomized group of novice male “gym rats” after they’d worked out regularly for around half a year.

 - ChestPain

Acute chest-pain patients imaged with coronary CT angiography (CCTA) are more likely to receive revascularization and invasive coronary interventions that don’t clearly improve outcomes than patients evaluated with standard functional tests such as stress EKG and stress echocardiography, according to a meta-analysis of randomized clinical trials.

 - PET_scanner

South Korean researchers have used a budding machine-learning technique to generate high-quality structural MR images from amyloid PET scans of dementia patients’ brains. They were then able to quantify cortical amyloid load from these MR-less images, which may open the door to ordering PET scans alone for numerous imaging scenarios in which PET/MR is now a preferred diagnostic pathway.

Contrast-enhanced ultrasound (CEUS) imaging is safe, efficient and highly specific for confirming location and placement of central venous catheter tips in adult patients, according to a medical literature meta-analysis running in the December edition of the Journal of Ultrasound in Medicine.

 - Pediatric_Needles

When it comes to inserting cannulas in the radial arteries of pediatric CCU patients, ultrasound guidance is superior to manual palpation, according to a study running in the December edition of the Journal of Ultrasound in Medicine.