Nuclear Medicine

Nuclear medicine (also called molecular imaging) includes positron emission computed tomography (PET) and single photon emission computed tomography (SPECT) imaging. Nuclear imaging is achieved by injecting small amounts of radioactive material (radiopharmaceuticals) into patients before or during their scan. These can use sugars or chemical traits to bond to specific cells. The radioactive material is taken up by cells that consume the sugars. The radiation emitted from inside the body is detected by photon detectors outside the body. Computers take the data to assemble images of the radiation emissions. Nuclear images may appear fuzzy or ghostly rather than the sharper resolution from MRI and CT.  But, it provides metabolic information at a cellular level, showing if there are defects in the function of the heart, areas of very high metabolic activity associated with cancer cells, or areas of inflammation, data not available from other modalities. These noninvasive imaging exams are used to diagnose cancer, heart disease, Alzheimer’s and Parkinson’s disease, bone disorders and other disorders. 

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5 ways to recruit sorely needed patients for Alzheimer’s clinical trials involving therapeutics

The demand is especially great for asymptomatic individuals of all races and ethnicities.

COVID-19 medical imaging examples of various clinical presentations. SARS-CoV-2 clinical imaging presentations.

PHOTO GALLERY: What does COVID-19 look like on medical imaging?

This image gallery shows what the various clinical presentations associated with the COVID-19 virus that have been documented during the coronavirus pandemic.

New PET imager cleared for U.S. sales

A Canadian manufacturer of positron emission tomography equipment has received FDA’s OK to market a small-footprint scanner that images targeted organs bearing radiotracers at close range.

MRI confirmed as gold standard for pre-biopsy detection of prostate cancer—but that’s ‘not the end of the story’

A clinical trial pitting MRI against a burgeoning PET/CT technique has found the de facto defending champion better at revealing the presence of any grade of prostate cancer.

Big private payer reverses course on cardiac PET/CT coverage

One of the largest private health insurers in the U.S. has gone from considering hybrid PET/CT for cardiac indications “experimental/investigational” to displaying willingness to pay for the modality. 

The American Medical Association (AMA) Board of Delegates approved a policy calling on payers to reimburse for the drug regadenoson and not to employ payment policies that push for cardiologists to change the drug they use for pharmacologic stress for one that is considered less safe. The policy was adopted at the AMA 2022 meeting. #AMA #AMA175 #AMAmtg #ASNC

AMA supports reimbursement for pharmacologic stress agent regadenoson

The American Medical Association Board of Delegates approved a policy calling on payers to reimburse for the drug regadenoson and not to employ payment policies that push for cardiologists to change the drug they use for pharmacologic stress for one that is considered less safe.

Alex Ding, MD, radiologist and incoming AMA Board trustee, explains the new AMA policy that calls on Ciongress to change the requirements of the CMS requirement for appropriate use criteria clinical decision support software for all advanced imaging exams, including CT and MRI. #AMA #AMAmtg #AMA175 #AUC

VIDEO: AMA will ask Congress to change mandate on appropriate use criteria clinical decision support

Alexander Ding, MD, a radiologist and incoming American Medical Association (AMA) Board of Trustees member, explains the new AMA policy calling on Congress to change the language and implementation of the current Medicare mandate that all advanced medical imaging needs certification.

Siemens debuts new, cleared SPECT/CT model

Siemens Healthineers splashed an FDA-approved SPECT/CT system June 12 at the 2022 annual meeting of the Society of Nuclear Medicine & Nuclear Imaging in Vancouver, B.C.

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Around the web

Health Imaging
American College of Radiology announces significant expansion of Lung Cancer Screening Registry

The ACR hopes these changes, including the addition of diagnostic performance feedback, will help reduce the number of patients with incidental nodules lost to follow-up each year.

Health Imaging
AI reduces CT lung cancer screening workload by nearly 80%

And it can do so with almost 100% accuracy as a first reader, according to a new large-scale analysis.

Health Imaging
Nearly $800,000 settlement offered to family of man who died during MRI exam

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