Ernest Garcia, Ph.D., MASNC, FAHA, endowed professor in cardiac imaging, director of nuclear...
Positron emission tomography (PET) is a nuclear imaging technology (also referred to as molecular imaging) that enables visualization of metabolic processes in the body. The basics of PET imaging is that the technique detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (also called radiopharmaceuticals, radionuclides or radiotracer). The tracer is injected into a vein on a biologically active molecule, usually a sugar that is used for cellular energy. PET systems have sensitive detector panels to capture gamma ray emissions from inside the body and use software to plot to triangulate the source of the emissions, creating 3-D computed tomography images of the tracer concentrations within the body.
This is 4MD’s cardiac nuclear imaging analysis software, shown here integrated with a ScImage cardiovascular information system (CVIS). Both companies displayed on the expo floor at ASNC 2019. The software creates a single page report seen here. PET perfusion imaging was a big topic at the conference.
Rupa Sanghani, M.D., FASNC, associate professor, Rush Medical College, director of nuclear cardiology and stress laboratory, Rush University Medical Center, and associate director, Rush Heart Center for Women, explains how to create a high-volume cardiac positron emission tomography (PET) imaging program. She spoke on this topic at the 2019 meeting of the American Society Nuclear Cardiology (ASNC) and led a tour with attendees of the PET-CT system at Rush, which was located close to the conference. #ASNC
A comparison of the first-ever image of a black hole released this week by the Event Horizon Telescope collaboration et al. and a cardiac nuclear imaging exam. Left is the black hole, and right is a similar nuclear imaging exam of the heart showing a similar ischemic perfusion defect to the black hole.
SyncVision iFR Co-registration from Philips Healthcare maps pressure readings onto angiogram. Results from an international study presented at ACC 2019 indicates pressure readings obtained using iFR (instantaneous wave-free ratio, also referred to as instant wave-free ratio or instant flow reserve) in coronary arteries may localize stenoses that remain after interventions.