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. 

ANSTO nuclear med facility halts production after 2 workers exposed to dangerous radiation dose

The Australian Nuclear Science and Technology Organization (ANSTO)’s new $168 million nuclear medicine facility halted all production after two employees were exposed to an unsafe dose of radiation on Friday, June 21, according to a statement from the organization.

June 24, 2019

Radiopharmaceutical safely monitors rheumatoid arthritis

Intravenous (IV) administration of technetium-99m (99mTc) was shown to be a safe, noninvasive way to observe rheumatoid arthritis disease activity, according to a study presented at the 2019 Annual Meeting of the Society of Nuclear Medicine and Molecular Imaging (SNMMI) in Anaheim, Calif.

June 24, 2019

Researchers create new method for developing PET radiotracers

University of North Carolina-Chapel Hill researchers have developed a new method for creating radiotracers used in PET imaging. The technique may improve imaging of diseases such as cancer, according to the study published in Science.

June 21, 2019

Novel PET scan improves diagnosis, monitoring of inflammatory bowel disease

Immuno-PET offers a more efficient diagnosis of inflammation in inflammatory bowel disease (IBD) compared to traditional invasive methods, according to a new study published in the June issue of the Journal of Nuclear Medicine.

June 18, 2019

Automated amyloid PET quantification approach can help ID Alzheimer’s

Using an automated technique to quantify amyloid plaque on PET scans in a patient’s native space can improve the detection of brain amyloid accumulation compared to traditional methods, according to a recent study published in the Journal of Nuclear Medicine.

June 17, 2019

Australia’s $168M nuclear medicine plant begins full production of Mo-99

Until now, the $168 million facility was producing limited amounts of Mo-99, a radioisotope used in approximately 85% of all Australian nuclear medicine procedures such as SPECT scans.

June 12, 2019

Radiotracer identifies 28 different forms of cancer

A team of German researchers has found a new class of radiopharmaceuticals capable of identifying 28 types of malignant tumors, imaging them with high uptake and image contrast.

 

June 10, 2019

USP publishes new safety standards for radiopharmaceuticals

The U.S. Pharmacopeia (USP) recently published a new chapter outlining minimum standards for preparing, compounding, dispensing and packaging sterile and non-sterile radiopharmaceuticals that are part of state-licensed activities.

June 6, 2019

Around the web

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans. 

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday. 

SCAI and four other major healthcare organizations signed a joint letter in support of intravascular ultrasound. 

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