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. 

Thumbnail

New molecular imaging approach could aid vast areas of health, disease

A new multimodal imaging approach produced highly-advanced molecular three-dimensional (3D) images of staph infection and may be instrumental in fighting antibiotic resistant infections, according to research published in Science Translational Medicine.

Thumbnail

Electromagnetic radiation PET imaging agent helps predict lung cancer therapy success

Researchers from Stanford University and two universities in China have recently developed a PET scan-compatible imaging agent that may help predict which lung cancer patients would benefit from a widely used drug or treatment, according to a recent Stanford news release.

PET imaging agent targets copper in tumors for early detection of prostate cancer recurrence

Italian researchers found an innovative nuclear medicine imaging agent that targets copper buildup in tumors to detect prostate cancer recurrence in patients with biochemical relapse.

Thumbnail

New machine learning algorithm reveals biological networks in human cells

Northwestern University researchers may have uncovered how parts inside human cells interact with each other thanks to a newly developed machine learning algorithm technology.  

Cryo-electron tomography finds cell transport linked to neurological disorders

Researchers from the Scripps Research Institute (TSRI) have provided what they claim is the first 3D visualization of the dynein-dynactin complex bound to microbubbles, which is responsible for cell division and preventing the development of neurological diseases. 

Thumbnail

3D imaging study finds direct correlation between glands, embryos in early pregnancy

Researchers from the Cincinnati Children's Hospital Medical Center used 3D imaging to show molecular transactions that occur during the earliest stages of pregnancy, according to a recent Cincinnati Children's release.  

PET-CT scans for pancreatic cancer patients eliminates additional surgery

A recent guideline from the National Institute for Health and Care Excellence (NICE) in the U.K. recommends PET-CT scans should be used to more quickly and accurately diagnosis and manage pancreatic cancer, resulting in a 20 percent reduction in surgery to remove the cancer.  

New year, new ear: Scientists use CT, 3D printing for kids born with defects

Scientists in China have managed to use a combination of computed tomography (CT) technology and 3D printing of cultured cells to grow new ears for five children between the ages of 5 and 9 born with ear defects, according to a recent article by CNN.  

Around the web

Positron, a New York-based nuclear imaging company, will now provide Upbeat Cardiology Solutions with advanced PET/CT systems and services. 

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.