Medical Imaging

Physicians utilize medical imaging to see inside the body to diagnose and treat patients. This includes computed tomography (CT), magnetic resonance imaging (MRI), X-ray, ultrasound, fluoroscopy, angiography,  and the nuclear imaging modalities of PET and SPECT. 

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New amyloid buster significantly hinders Alzheimer’s advance

An experimental Alzheimer’s drug therapy has slowed cognitive and functional decline by 27% versus placebo in a double-blind, randomized study of 1,795 individuals with early signs and symptoms of the disease.

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For monitoring purposes, AI-aided MRI does what liver biopsy does with less risk, lower cost

Patients with autoimmune hepatitis may be better monitored across disease stages by AI-augmented multiparametric MRI than by liver biopsy, as the imaging has proven less costly and is inherently less risky due to its noninvasiveness. 

On review, popular imaging decision aid earns 1 thumbs-up—with caveats

With 91% sensitivity but only 25% specificity, the tool is worthwhile for clinicians who remain wary of frequent false positives that would send patients with no fractures for unneeded imaging.

Could a repurposed drug break a centurylong stalemate in the war on cancer?

A pharmaceutical compound approved 21 years ago to treat breast cancer in postmenopausal women is showing fresh promise as a therapy for glioblastomas. 

Newborn brains invigorated by mother’s active lifestyle during pregnancy

The boon comes in the form of greater brain cortical thickness observable on neonatal MRI two weeks after the baby enters the world.

Breast ultrasound volume calculator cleared for U.S. sales

The FDA has given its thumbs-up to software that calculates breast fibroglandular tissue volume (FGV) and the ratio of FGV to total breast volume on ultrasound imaging.

4D ultrasound shows preborn humans ‘laughing’ over carrots, ‘crying’ over kale

Researchers in the U.K. have documented fetuses smiling when exposed to sweet flavors and frowning over bitter tastes.

Self-supervised AI ‘reads’ radiology reports to speed algorithm development

A machine learning system has come along that needs no human labeling of data for training yet matches radiologists at classifying diseases on chest X-rays—including some that the model was not specifically taught to detect.

Around the web

The patient, who was being cared for in the ICU, was not accompanied or monitored by nursing staff during his exam, despite being sedated.

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.