PET Imaging
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.
Application of dual-modality optical and PET/CT activity-based probe in experimental carotid inflammation model. Coronal noninvasive PET/CT scans of (A) healthy and (B) diseased mice with and without ligated carotid arteries respectively. Inset images show optical ex vivo florescence imagining of (A) healthy and (B) diseased carotid arteries. PET/CT and optical images courtesy of Xiaowei Ma, Toshinobu Saito and Nimali Withana.
News | PET-CT | November 01, 2016
November 1, 2016 — Researchers at Stanford University have demonstrated for the first time the use of a dual optical...
News | Prostate Cancer | October 25, 2016
October 25, 2016 — Blue Earth Diagnostics Ltd. announced the peer-reviewed publication of results from a Phase 3...
News | Radiopharmaceuticals and Tracers | October 17, 2016
October 17, 2016 — Lantheus Holdings Inc. announced in late September that sub-analysis data from the first Phase 3...
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A 90-second brain acquisition with FDG radiotracer — comparison of digital (Vereos, left, 1 mm) and conventional (Gemini TF, 4 mm) images.
Blog | PET Imaging | December 11, 2018
Digital technology is opening remarkable opportunities for clinical...
IQon Spectral CT image courtesy of Philips Healthcare
News | Information Technology | October 13, 2016
October 13, 2016 — Philips announced that it will be displaying a variety of solutions aimed at increasing diagnostic...
Panel A shows a flank A549 lung tumor in a nude mouse with combined 18F-FDG PET uptake (signal intensity in color) and T2-weighted anatomical MRI (grayscale). Panel B shows a similar tumor image with a relative permeability map for the tumor (color code) overlaid on a corresponding anatomical MRI reference. Regions identified as necrotic were not included in the DCE MRI analysis. Image courtesy of the University of Arizona Department of Medical Imaging.
News | PET-MRI | October 13, 2016
October 13, 2016 — Cubresa Inc. recently announced the successful installation of their compact positron emission...
Image courtesy of Pixabay
Blog | Radiology Imaging | October 12, 2016
We know where imaging has been.
We think it’s going to a better...
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PET images taken on Philips’ Vereos PET/CT at Methodist Hospital in Omaha, Neb., show a lung lesion. Caveat: Because results may vary, “results from case studies are not predictive of results in other cases,” Philips cautioned. Images courtesy of Omaha’s Methodist Hospital
Blog | PET Imaging | November 07, 2018
Precision can have an enormous impact on patients.
Image courtesy of Pixabay
Blog | Radiology Imaging | October 05, 2016
Ever knock down a silo? You have to be quick. And lucky. Very …...
Technology | PET-CT | October 05, 2016
October 5, 2016 — GE Healthcare announced U.S. Food and Drug Administration (FDA) 510(k) clearance of its Discovery MI...
Feature | Radiation Oncology | October 04, 2016 | By Michael V. Knopp, M.D., Ph.D., Chadwick L. Wright, M.D., Ph.D., Katherine Binzel, Ph.D. and Jun Zhang, Ph.D.
Precision medicine is not only a buzzword, it is a call to action to radically advance our capabilities in the era of...
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Podcast | PET Imaging | November 07, 2018
PET is getting ready to venture outside oncology, cardiology and mainstream neurology.
News | PET-CT | October 03, 2016
October 1, 2016 — To advance clinical care for its customers, Toshiba’s Celesteion PET/CT system delivers a more...
Graphic courtesy of Pixabay
Blog | Radiology Imaging | September 07, 2016
Radiology cannot stay where it is. Yet threats make it dangerous to move.
The adoption of...
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Each digital photon counter in the Vereos PET/CT detector contains thousands of solid-state sensors that digitally count individual photons.
Blog | PET-CT | October 17, 2018
Analog is approximate. Digital is specific. Therein lies the fundamental difference between digital PET and its...
There is a growing focus on early diagnosis and prevention. Here, PET/CT imaging is used to look inside the stress center of the brain.
Feature | Radiology Imaging | September 07, 2016 | By Kirill Shalyaev, Ph.D.
Advanced imaging and hybrid modalities, such as ...
News | PET Imaging | September 01, 2016
September 1, 2016 — The American Society for Nuclear Cardiology (ASNC) and the Society of...
Example of the iDISCO technique to image brain samples containing Alzheimer’s disease, which could have major impact on treatment. For more inages and videos view the article online at www.cell.com/cell-reports/fulltext/S2211-1247(16)30814-2
News | Neuro Imaging | August 30, 2016
August 30, 2016 — Rockefeller University researchers have used a recently-developed imaging technique that makes tissue...
News | PET Imaging | August 02, 2016
August 2, 2016 — A cutting-edge method of extracting big data from...
A PET-CT head and neck cancer scan showing various image reconstructions. The top left image is the separate CT scan showing the anatomy. The top right scan shows the fused PET and CT scans with false color added to help interpret the image. The bottom left scan is an initial FDG PET image showing tracer hot spots in the neck and a lymph node in the right jaw due to cancer. The right bottom image is a delayed enhancement scan showing tracer uptake over time, with normal hot spots in the bladder, kidneys, testicles and brain, which normally have higher metabolic activity. The low-grade gray shading of the anatomy is due to the normal cellular metabolism uptake of the FDG throughout the body.
Feature | PET Imaging | July 26, 2016 | Dave Fornell
Positron emission tomography (PET) is a nuclear imaging technology (also referred to as molecular imaging) that enables...
Image courtesy of Pixabay.
Blog | Radiology Imaging | July 20, 2016
Making healthcare more objective and precise promises to increase efficiency and reduce costs — the key ingredients of...
An example of a cardiac PET-CT imaging, should a color coded image of the left ventricle to help assess myocardial perfusion to detect ischemia using a Siemens scanner.
News | Nuclear Imaging | July 19, 2016
July 19, 2016 - An updated joint American Society of Nuclear Cardiology (ASNC) imaging guidelines and Society of...
