PET-CT

PET-CT combines positron emission tomography (PET) detectors and computed tomography (CT) into one imaging system. PET requires the use of CT for image attenuation correction. The CT scanners that can be installed on these systems include 4-slice, up to workhorse 64-slice or higher systems. High slice CT is usually an option picked by  hospitals that plan to use the PET-CT scanner for standard CT only imaging exams as well. The CT scan anatomical imaging can be fused with the nuclear PET imaging to show anatomical landmarks. The CT component can also be used in cardiac PET to perform a coronary calcium scoring exam to offer a risk assessment for future heart attack risk.

A myocardial perfusion exam performed on the Siemens Biograph Vision PET-CT system.

A myocardial perfusion exam performed on the Siemens Biograph Vision PET-CT system.

Feature | Nuclear Imaging | June 15, 2018 | Dave Fornell, Editor
Nuclear imaging technology for both single photon emission computed tomography (SPECT) and  positron emission...
Nuclear myocardial perfusion scan performed on a Biograph Vision positron emission tomography/computed tomography (PET-CT) system from Siemens Healthineers. The image shows good clarity with delineation of the left ventricular edge and papillary muscles without cardiac gating.

Nuclear myocardial perfusion scan performed on a Biograph Vision positron emission tomography/computed tomography (PET-CT) system from Siemens Healthineers. The image shows good clarity with delineation of the left ventricular edge and papillary muscles without cardiac gating.

Technology | PET-CT | June 05, 2018
June 5, 2018 — The U.S. Food and Drug Administration (FDA) has cleared the Biograph Vision, a new positron emission...
CZT SPECT camera detectors offered by GE.

A display of CZT SPECT gamma camera detectors at RSNA 2016. These detectors are more sensitive than those used in older cameras, allowing for faster scans or lower radiation dose. 

Feature | Nuclear Imaging | September 19, 2017 | Dave Fornell
Cardiac nuclear myocardial perfusion imaging (MPI) has been a mature area of imaging for years, but has recently...
Videos | Nuclear Imaging | August 24, 2017
Prem Soman, M.D., director of nuclear cardiology at the Heart and Vascular Institute, University of Pittsburgh, and...
ASNC and SNMMI Release Joint Document on Diagnosis, Treatment of Cardiac Sarcoidosis
News | Cardiac Imaging | August 18, 2017
August 18, 2017 — The American Society of Nuclear Cardiology (ASNC) has released a joint expert consensus document with...
New PET-CT Scan Improves Detection in Rare Cardiac Condition
News | PET-CT | July 25, 2017
July 25, 2017 — Using a new nuclear imaging technique that can diagnose cardiac sarcoidosis much more accurately than...
Videos | Nuclear Imaging | April 28, 2017
David Wolinsky, M.D., director of nuclear cardiology at Cleveland Clinic Florida and past-president of the American...
stress, brain activity, cardiovascular risk, PET-CT, MGH, ISSMS, The Lancet study
News | Cardiac Diagnostics | January 18, 2017
January 18, 2017 — A study led by Massachusetts General Hospital (MGH) and Icahn School of Medicine at Mount Sinai (...
PET/CT, calcium blockages, heart attack risk, Intermountain study, American Heart Association, AHA Scientific Sessions 2016
News | PET-CT | November 15, 2016
November 15, 2016 — Many people who experience chest pain but don’t have a heart attack breathe a big sigh of relief...
PET/CT, atherosclerotic plaque detection, Stanford University

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...
GE Healthcare, Discovery MI PET/CT system, FDA clearance, RSNA 2016
Technology | PET-CT | October 05, 2016
October 5, 2016 — GE Healthcare recently announced U.S. Food and Drug Administration (FDA) 510(k) clearance of its...
Philips, SNMMI 2016, Vereos digital PET/CT, time-of-flight, IntelliSpace 8.0, nuclear imaging
News | Nuclear Imaging | June 14, 2016
June 14, 2016 — Philips announced it would be showcasing a variety of nuclear imaging solutions at the Society of...
cardiac PET, myocardial perfusion, PET-CT, cardiac perfusion

A PET-CT cardiac perfusion exam from a Siemens Biograph scanner. The black and white areas of the image show the CT imaging of the anatomy. The colored portion shows the PET overlay on the myocardium and is color-coded to show tracer uptake values. This can show areas of the heart muscle where there are perfusion defects cause by infarcts or coronary artery blockages due to a heart attack and help determine the severity of the ischemia.

Feature | PET Imaging | June 03, 2016 | Dave Fornell
Positron emission tomography (PET) is a nuclear imaging technology (also referred to as molecular imaging) that enables...
PET/CT scan, brain stress center, heart disease predictor, ACC.16
News | PET-CT | April 05, 2016
April 5, 2016 — New research shows individuals with a greater degree of activity in the stress center of the brain also...
Siemens, Biograph Horizon PET CT, FDA clearance
Technology | PET-CT | January 21, 2016
January 21, 2016 — Siemens Healthcare has received 510(k) clearance from the U.S. Food and Drug Administration (FDA)...