Molecular Imaging

Molecular imaging (also called nuclear medicine or nuclear imaging) can image the function of cells inside the body at the molecular level. This includes the imaging modalities of positron emission computed tomography (PET) and single photon emission computed tomography (SPECT) imaging. How does PET and SPECT 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. 

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Cutting radiation exposure in half during PET/CT using virtual CT scans

“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.

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Wisconsin company to begin producing medical isotopes next year

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.

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One chemistry professor's role in increasing radioisotope production in the U.S.

The work of a chemistry professor at the University of Wisconsin-Milwaukee is helping to blaze the trail of reducing the United States’ dependence on foreign countries for vital medical isotopes. 

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PET/CT offers 'significant prognostic advantage' to patients newly diagnosed with multiple myeloma

The study, which followed 195 patients recently diagnosed with multiple myeloma (MM), found that a negative PET/CT scan six months after diagnosis and induction therapy was significantly linked with improved survival.

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Total-body PET scanner detects cancer in 60 seconds

The new equipment, which initially will be used to treat prostate and neuroendocrine tumors, is expected to be operational in July.

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3 indications auguring well for the future of pediatric PET/MRI

In pediatric care settings, hybrid PET/MR imaging combines “exquisite soft-tissue information obtained by MR imaging with functional information provided by PET.”

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FDA clears spinal-tap test that could challenge PET in Alzheimer’s diagnostics

The FDA has approved a lab test for evaluating cognitively impaired adults who may be in the early stages of Alzheimer’s disease.

coronavirus COVID-19 vaccine vaccination

FDG PET/CT radiomics distinguishes between vaccine-related or metastatic breast cancer lymphadenopathy

The findings could help clinicians manage patients’ treatment when the origin of axillary lymphadenopathy is of concern, experts suggested.