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.

During virtual RSNA 2020, Canon Medical Systems USA, Inc. will showcase enhancements to the Cartesion Prime PET/CT system, a premium Digital PET/CT scanner designed to help health care providers deliver more personalized care.
News | PET-CT | October 05, 2020
October 5, 2020 — During virtual RSNA 2020, Canon Medical Systems USA, Inc. will showcase enhancements to the Cartesion...
RefleXion and Sofinnova Partners received the “Salus Partner Excellence in HealthTech Award” at the Convergence in Oncology Summit in Lausanne, Switzerland.  The prize recognizes RefleXion and Sofinnova Partner’s vision and excellence in developing the disruptive biology-guided radiotherapy (BgRT) for treatment of cancer patients.
News | PET Imaging | September 25, 2020
September 25, 2020 — RefleXion and Sofinnova Partners received the “Salus Partner Excellence in HealthTech Award” at...
Indeterminate lesion on PET/CT classified by PET/MRI for 53-y-old man with lung cancer.

Indeterminate lesion on PET/CT classified by PET/MRI for 53-y-old man with lung cancer. Contrast-enhanced CT (A), PET (B), and fused 18F-FDG PET/CT (C) images are displayed in comparison with contrast-enhanced T1-weighted MRI (D), PET, and fused 18F-FDG PET/MRI (F) images. In CT (A), hyperdense, subcentimeter liver lesion (arrows) in segment VII is suggestive of transient hepatic attenuation difference or small hemangioma. As malignancy cannot be excluded, it needs further investigation. On PET/MRI, lesion is clearly classified as metastasis because of contrast enhancement and tracer uptake due to later acquisition time point. Follow-up CT confirmed diagnosis after 78 d. Images created by Ole Martin, University Dusseldorf, Medical Faculty and Benedikt Schaarschmidt, University Hospital Essen.

News | PET-MRI | September 18, 2020
September 18, 2020 — A single-center observational study of more than 1,000 oncological examinations has demonstrated...
HABLE study prioritizes brain imaging and biomarker research among Mexican Americans.

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News | PET Imaging | September 14, 2020
September 14, 2020 — To meet the pressing need to better understand the prevalence, progression, and clinical impact of...
A 12-year-long collaboration with Canon Medical Research USA, Canon Medical Systems Japan and Southern Nevada outpatient radiology leader Steinberg Diagnostic Medical Imaging (SDMI) has resulted in the development of 3 PET scanners, each generation more advanced than the last
News | PET-CT | September 08, 2020
September 8, 2020 — A 12-year-long collaboration with Canon Medical Research USA, Canon Medical Systems Japan and ...
a) Includes scintigraphy and PET with and without concomitant CT. b) Includes conventional radiography, dual-energy x-ray absorptiometry, fluoroscopy, and radiography performed during radiologic interventions. c) Includes general, cardiothoracic, maxillary, plastic, and orthopedic surgery and neurosurgery. d) Includes allergology, cardiology, geriatrics, general internal medicine, pulmonology, gastroenterology, and rheumatology

a) Includes scintigraphy and PET with and without concomitant CT. b) Includes conventional radiography, dual-energy x-ray absorptiometry, fluoroscopy, and radiography performed during radiologic interventions. c) Includes general, cardiothoracic, maxillary, plastic, and orthopedic surgery and neurosurgery. d) Includes allergology, cardiology, geriatrics, general internal medicine, pulmonology, gastroenterology, and rheumatology. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Radiology Imaging | August 14, 2020
August 14, 2020 — According to ARRS' American Journal of Roentgenology (AJR), clinicians do not read a considerable...
Tau (blue) and amyloid (orange) distribution patterns for super-agers, normal-agers and MCI patients, when compared to a group of younger, healthy, cognitively normal, amyloid-negative individuals. Brain projections are depicted at an uncorrected significance level of p < .0001. Color bars represent the respective t-statistic. Image courtesy of Merle C. Hoenig, Institute for Neuroscience and Medicine II - Molecular Organization of the Brain, Research Center Juelich, Juelich, Germany, and Department of Nucle

Tau (blue) and amyloid (orange) distribution patterns for super-agers, normal-agers and MCI patients, when compared to a group of younger, healthy, cognitively normal, amyloid-negative individuals. Brain projections are depicted at an uncorrected significance level of p < .0001. Color bars represent the respective t-statistic. Image courtesy of Merle C. Hoenig, Institute for Neuroscience and Medicine II - Molecular Organization of the Brain, Research Center Juelich, Juelich, Germany, and Department of Nuclear Medicine, University Hospital Cologne, Cologne, Germany.

News | PET Imaging | July 16, 2020
July 16, 2020 — Super-agers, or individuals whose cognitive skills are above the norm even at an advanced age, have...
Novel imaging agent provides foundation to inform treatment strategies

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News | PET Imaging | July 16, 2020
July 16, 2020 — Whole body positron emission tomography (PET) has, for the first time, illustrated the existence of...
PSMA PET/CT accurately detects recurrent prostate cancer in 67-year-old man. 18F-DCFPyL-PSMA PET/CT shows extensive, intensely PSMA-avid local recurrence in prostate (bottom row; solid arrow) in keeping with the known tumor recurrence in the prostate. Right: PET shows extensive, intensely PSMA-avid local recurrence in prostate (top row; solid arrow) and a solitary bone metastasis in left rib 2 (bottom row; dotted arrow). Image courtesy of Ur Metser, et al.

PSMA PET/CT accurately detects recurrent prostate cancer in 67-year-old man. 18F-DCFPyL-PSMA PET/CT shows extensive, intensely PSMA-avid local recurrence in prostate (bottom row; solid arrow) in keeping with the known tumor recurrence in the prostate. Right: PET shows extensive, intensely PSMA-avid local recurrence in prostate (top row; solid arrow) and a solitary bone metastasis in left rib 2 (bottom row; dotted arrow). Image courtesy of Ur Metser, et al.

News | PET-CT | July 16, 2020
July 16, 2020 — New research confirms the high impact of PSMA PET/CT in the detection and management of recurrent...
Total-body dynamic 18F-FDG PET imaging with the uEXPLORER scanner allows us to monitor the spatiotemporal distribution of glucose concentration in metastatic tumors in the entire body (a). As compared to a typical clinical standardized uptake value image (b), the parametric image of FDG influx rate (Ki) can achieve higher lesion-to-background (e.g., the liver) contrast. In addition to glucose metabolism imaging by Ki, total-body dynamic PET also enables multiparametric characterization of tumors and organs

Total-body dynamic 18F-FDG PET imaging with the uEXPLORER scanner allows us to monitor the spatiotemporal distribution of glucose concentration in metastatic tumors in the entire body (a). As compared to a typical clinical standardized uptake value image (b), the parametric image of FDG influx rate (Ki) can achieve higher lesion-to-background (e.g., the liver) contrast. In addition to glucose metabolism imaging by Ki, total-body dynamic PET also enables multiparametric characterization of tumors and organs using additional physiologically important parameters, for example, glucose transport rate K1 (d), across the entire body. Image courtesy of G.B. Wang, M. Parikh, L. Nardo, et al., University of California Davis, Calif.

News | PET Imaging | July 16, 2020
July 16, 2020 — Results from the first study using uEXPLORER to conduct total-body dynamic positron emission tomography...
Representative maximum-intensity projection PET images of a healthy human volunteer injected with 64Cu-NOTA-EB-RGD at 1, 8, and 24 hours after injection. Axial MRI and PET slices of glioblastoma patient injected with 64Cu-NOTA-EB-RGD at different time points after injection. Image courtesy of Jingjing Zhang et al., Peking Union Medical College Hospital, Beijing, China/ Xiaoyuan Chen et al., Laboratory of Molecular Imaging and Nanomedicine, NIBIB/NIH, Bethesda, USA

Representative maximum-intensity projection PET images of a healthy human volunteer injected with 64Cu-NOTA-EB-RGD at 1, 8, and 24 hours after injection. Axial MRI and PET slices of glioblastoma patient injected with 64Cu-NOTA-EB-RGD at different time points after injection. Image courtesy of Jingjing Zhang et al., Peking Union Medical College Hospital, Beijing, China/ Xiaoyuan Chen et al., Laboratory of Molecular Imaging and Nanomedicine, NIBIB/NIH, Bethesda, USA

News | PET Imaging | July 15, 2020
July 15, 2020 — A first-in-human study presented at the Society of Nuclear Medicine and Molecular Imaging 2020 Annual...
PET/CT imaging showing uptake and retention of 86Y-NM600 (imaging agent) in immunocompetent mice bearing prostate tumors. PET imaging data was employed to estimate tumor dosimetry and prescribe an immunomodulatory 90Y-NM600 (therapy agent) injected activity. Image courtesy of R Hernandez et al., University of Wisconsin-Madison, WI.

PET/CT imaging showing uptake and retention of 86Y-NM600 (imaging agent) in immunocompetent mice bearing prostate tumors. PET imaging data was employed to estimate tumor dosimetry and prescribe an immunomodulatory 90Y-NM600 (therapy agent) injected activity. Image courtesy of R Hernandez et al., University of Wisconsin-Madison, WI.

News | PET-CT | July 15, 2020
July 15, 2020 — Targeted radionuclide therapy has been found to create a favorable tumor microenvironment in prostate...
Adult male with decades of right neck pain, discomfort and tightening following birth injury. The patient had failed multiple standard therapeutic maneuvers before presenting for 18F-FDG PET/MR imaging. Images shows abnormally elevated FDG uptake (white arrows; SUVmax = 1.2) observed in a linear pattern in the space in the posterolateral right neck, between the oblique capitis inferior and the semispinalis capitis muscles, where the greater occipital nerve resides. By comparison, the same region on the cont

Adult male with decades of right neck pain, discomfort and tightening following birth injury. The patient had failed multiple standard therapeutic maneuvers before presenting for 18F-FDG PET/MR imaging. Images shows abnormally elevated FDG uptake (white arrows; SUVmax = 1.2) observed in a linear pattern in the space in the posterolateral right neck, between the oblique capitis inferior and the semispinalis capitis muscles, where the greater occipital nerve resides. By comparison, the same region on the contralateral, asymptomatic side of the neck has an SUVmax = 0.7. This result encouraged a surgeon to explore the area. The surgeon ultimately found a collection of small arteries wrapped around the nerve in this location. The small arteries underwent lysis by the surgeon and the patient reported tremendous relief of symptoms. (A) Coronal thick slab MIP of 18F-FDG PET. (B) Axial LAVA FLEX MRI through the cervical spine. (C) Axial PET at the same slice as the axial MRI. (D) Fused axial PET/MRI. Image courtesy of Cipriano, et al., Stanford University, CA.

News | SNMMI | July 14, 2020
July 14, 2020 — A new molecular imaging approach utilizing 18F-FDG positron emission tomography (PET) and magnetic...
Left: Total-body PET/CT in psoriatic arthritis: multiple joints affected, shoulders, elbows, wrists, knees, ankles and small joints of the hands/feet. Arrow: left wrist; arrowhead: right wrist. Middle: Total-body PET/CT in rheumatoid arthritis: multiple joints affected, right shoulder, small joints of the left hand. Arrowhead at the 4th proximal interphalangeal joint shows classic ring-like uptake pattern. Arrow on the foot images demonstrates the hammer toe deformity besides big toe arthritis. Right: Total

Left: Total-body PET/CT in psoriatic arthritis: multiple joints affected, shoulders, elbows, wrists, knees, ankles and small joints of the hands/feet. Arrow: left wrist; arrowhead: right wrist. Middle: Total-body PET/CT in rheumatoid arthritis: multiple joints affected, right shoulder, small joints of the left hand. Arrowhead at the 4th proximal interphalangeal joint shows classic ring-like uptake pattern. Arrow on the foot images demonstrates the hammer toe deformity besides big toe arthritis. Right: Total-body PET/CT in osteoarthritis: affected joints include the left elbow, right knee (arrow) and right big toe (arrowhead). Image courtesy of YG Abdelhafez et al., University of California Davis, Sacramento, CA.

News | SNMMI | July 14, 2020
July 14, 2020 — For the first time, physicians can examine the systemic burden of inflammatory arthritis simultaneously...
The FDA has approved Lilly’s TAUVID (flortaucipir F 18 injection), a radioactive diagnostic agent, for PET imaging of the brain to estimate the density and distribution of aggregated tau neurofibrillary tangles (NFTs) in adult patients with cognitive impairment who are being evaluated for Alzheimer’s disease

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News | Contrast Media | June 01, 2020
June 1, 2020 — TAUVID, a radioactive diagnostic agent, has been approved by the FDA for positron emission tomography (...
MERCK and RefleXion Medical announced a collaboration to evaluate KETRUDA (immunotherapy) with biology-guided radiotherapy - BgRT -  a new radiation machine developed to treat all stages of cancer.

MERCK and RefleXion Medical announced a collaboration to evaluate KETRUDA (immunotherapy) with biology-guided radiotherapy - BgRT -  a new radiation machine developed to treat all stages of cancer.

 

News | Radiation Therapy | June 01, 2020
June 1, 2020 — RefleXion Medical, a therapeutic oncology company pioneering biology-guided radiotherapy (BgRT) for...
New radiopharmaceutical intended for PET imaging of metastatic breast cancer patients
News | Molecular Imaging | May 28, 2020
May 27, 2020 — PETNET Solutions, Inc., a Siemens Healthineers company, and Zionexa USA, a wholly owned subsidiary of...
Colored areas of the brain represent regions where the loss of brain synapses in people with early-stage Alzheimer’s was greater than people with normal cognitive function.

Colored areas of the brain represent regions where the loss of brain synapses in people with early-stage Alzheimer’s was greater than people with normal cognitive function. Image courtesy of YaleNews.

News | PET Imaging | May 14, 2020
May 14, 2020 — New imaging technology allows scientists to see the widespread loss of brain synapses in early stages of...
 Siemens Healthineers has received clearance from the Food and Drug Administration (FDA) for its AIDAN artificial intelligence technologies on the Biograph family of positron emission tomography/computed tomography (PET/CT) systems

 Siemens Healthineers received clearance from the FDA for its AIDAN artificial intelligence technologies on the Biograph family of positron emission tomography/computed tomography (PET/CT) systems.

News | Artificial Intelligence | April 22, 2020
April 22, 2020 — Siemens Healthineers has received clearance from the Food and Drug Administration (FDA) for its AIDAN...
Maximum-intensity PET projections at each time point for one rhesus monkey in the 89Zr-DFO-squaramide-anti-gD group.

Maximum-intensity PET projections at each time point for one rhesus monkey in the 89Zr-DFO-squaramide-anti-gD group. Image courtesy of Eric Berg, University of California, Davis, CA

News | PET Imaging | April 10, 2020
April 10, 2020 — Combining 89Zr-labeled antibodies with total-body positron emission tomography (PET) has extended the...