Nuclear Medicine

Nuclear medicine (also called molecular imaging) includes positron emission computed tomography (PET) and single photon emission computed tomography (SPECT) imaging. How dose nuclear imaging work? Small amounts of radioactive material (radiopharmaceuticals) injected into a patient. 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. 

In the study, patients who had recovered from an COVID infection were injected with a small amount of the 89Zr-labeled radiotracer before undergoing a uExplorer PET/CT scan.

learning classroom student training

Experts recently detailed their efforts to garner more student interest in the field—efforts that were successful, according to a survey responses from students who completed a short nuc med seminar.

neuroblastoma prognosis

Better risk stratification can improve clinical decision making and better outcomes, experts involved in the study explained in EJR.

Dementia

"Clinical study protocols may involve more than one PET [amyloid-beta] scan per patient,” the CMS announcement said.

lung cancer pulmonary nodule chest

PET/CT imaging in these patients increases overall survival depending on the cancer’s stage, with those diagnosed with stage 3A and 3B NSCLC appearing to benefit the most from the exam. 

U.S. News & World Report children’s hospitals cardiology heart surgery

This week in AJR, experts shared how they were able to reduce FDG PET scan acquisition times by 33%, thus reducing the amount of total radiation exposure to more vulnerable pediatric patients. 

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

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.

Researchers have designed a new cardiac SPECT imaging system that could potentially deliver images much faster than current models. The team presented its findings at the annual meeting of the Society of Nuclear Medicine and Molecular Imaging (SNMMI), SNMMI 2022. #SNMMI22 #snmmi #SNMMI2022

Researchers presented their proposed design of a self-collimating SPECT system at SNMMI 2022.

Salvage radiation therapy guidelines for patients with prostate cancer recurrence need to be updated to include findings identified on PSMA PET, according to new research shared at SNMMI’s annual conference this week. 

“High-quality artificial intelligence-generated images preserve vital information from raw PET images without the additional radiation exposure from CT scans,” experts involved in the study explained.

The group is advocating for the NRC to treat significant extravasations in the same manner as any other reportable medical event. 

The company’s CEO, Greg Piefer, detailed the plans at the Wisconsin Entrepreneurs’ Conference on June 2, stating that production would be achieved via small-scale nuclear transmutation.

Around the web

There is not agreement among the top structural heart experts if CT is required for left atrial appendage occlusion (LAAO), but a Henry Ford Hospital study shows it can improve outcomes.

Ron Blankstein, MD, Brigham and Women's Hospital, explains recent advances in coronary computed tomography angiography (CCTA) technology. 

With the elevation of cardiac CT to a 1A indication in the 2021 Chest Pain Guidelines, there has been a large amount of interest in starting coronary artery CT angiography (CCTA) programs. 

   
   
   
   
   
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