The Diagnostic Imaging CT modality focus page provides information, videos, podcasts, and the latest news about industry product developments, trial results, screening guidelines, and protocol guidance that touch on the use of CT across the healthcare continuum, from various cancer screenings, such as lung and colon, to cardiothoracic imaging, to appendicitis, and more.
September 9th 2025
Researchers also found that low-dose chest CT detection of emphysema was associated with a 29 percent higher risk of all-cause mortality up to 25 years later, according to a study involving over 9,000 individuals with a history of smoking.
Some cardiologists cling to catheter angiography
March 4th 2005Coronary CT angiography has proven to be a boon to radiologists and cardiologists in private practice. With a high negative predictive value, it can easily rule out coronary artery disease in patients with nondiagnostic electrocardiograms. For cardiologists in particular, CTA can help offset declining reimbursements associated with catheter procedures and nuclear medicine tests. But some cardiologists resist.
ECR Webcast showcases latest research
March 3rd 2005For the third year running, editors from Diagnostic Imaging have landed in Vienna to provide Webcast coverage of the European Congress of Radiology. Although the RSNA is becoming more international every year, it can’t capture the unique European perspective presented at this annual event. Our daily news stories will highlight research from the studies presented at the ECR, but much more is available at the Webcast.
IHE initiative tackles CDs and document sharing
February 24th 2005The Integrating the Healthcare Enterprise initiative continued throughout 2004 to round out its blueprint for designing interoperable systems and products, creating new supplements and integration profiles. Radiology-centric portable data, nuclear medicine profiles, and several additions to the scheduled workflow profile topped the list. The IHE also tackled the electronic health record with the introduction of the cross-enterprise document-sharing integration profile.
Specialists discover common ground in cardiovascular CT
February 7th 2005The extraordinary capabilities of cardiac CT are drawing increased attention from cardiologists, who long ago conquered angiography, echocardiography, and cardiac nuclear medicine. That interest concerns radiologists, who worry about the potential for self-referral, inappropriate utilization, and lost turf.
SNM targets molecular imaging with new center
February 1st 2005The Society of Nuclear Medicine recently added the tagline “advancing molecular imaging” to its logo. Now it is developing a center of molecular imaging in an effort to disseminate information and promote research in the rapidly advancing field.
Joe Hogan leads technology side of newly integrated GE-Amersham
January 24th 2005No other company has done what GE has done: The merger of its medical systems unit with British pharmaceutical giant Amersham combined a multimodality maker of imaging equipment with the manufacturer of contrast media.
Cardiac CT practitioners create two new societies
January 13th 2005Maintaining order in the rapidly changing, sometimes contentious development of cardiac CT imaging may have become easier. Last weekend, two independent groups met in two U.S. cities to establish two separate professional societies geared toward promoting the clinical use of cardiac CT angiography.
Hybrid imaging takes next logical steps with 64-slice PET/CT, multislice SPECT/CT
January 10th 2005PET/CT stepped up to 64-slice scanning, while many visitors to the RSNA meeting got their first close-up look at the next generation of gamma cameras. Hybrid SPECT/CT was first publicly seen in June 2004 at the Society of Nuclear Medicine meeting.
Cacophony of claims marks commercial introduction of 64-slice scanners
January 10th 2005CT vendors delivered on promises made a year earlier with the delivery of 64-slice scanners. As the RSNA show floor opened, each of the four major vendors -- Siemens, GE, Philips, and Toshiba -- was either shipping these megaslice scanners or planning to begin doing so in early 2005. The offerings, however, were anything but homogeneous. The differences became apparent in each company’s presentation of its products and discussion of its competitors.
CT manufacturers roll out last year’s works-in-progress
January 10th 2005CT vendors were exceptional in their predictability, as each bore product pathways to the RSNA meeting as true as rifle shots. High-end and midtier scanners appeared on cue, their makers registering claims for their own products and criticism of the competition. It all came as little surprise to anyone familiar with the RSNA exhibit floor.
CT colonography standards foster exam's legitimacy
January 7th 2005Virtual colonoscopy took a roller coaster ride last year. Some peer-reviewed studies touted the technique, while others favored conventional colonoscopy. Experts on each side complained of flaws in the other side's methodology. With that background, an international working group has developed a standardized reporting system for CT colonography.
Hybrid imaging invades new turf
December 29th 2004Hybrid imaging dominated the nuclear medicine section of the RSNA exhibit floor. Philips and Siemens promoted multislice SPECT/CT, while GE, which pioneered the idea five years ago, showed an upgraded version of its Infinia gamma camera coupled to a single-slice, nondiagnostic CT for attenuation correction.
2D versus 3D primary read debate sputters at RSNA
December 1st 2004Radiologists eagerly expecting a clear winner to emerge from the RSNA session on CT colonography interpretation technique walked away disappointed Tuesday afternoon. A series of four presentations provided no clear consensus on which method would increase sensitivity for polyp detection.
Hybrid imaging invades new turf
November 30th 2004Hybrid imaging dominates the nuclear medicine section of the RSNA exhibit floor. Philips and Siemens are promoting multislice SPECT/CT, while GE, which pioneered the idea five years ago, is showing an upgraded version of its Infinia gamma camera coupled to a single-slice, nondiagnostic CT for attenuation correction.
CT colonography proponents scope easier target
November 28th 2004Proponents of CT colonography may lower the bar in measuring the imaging modality against conventional colonoscopy. After a wave of mediocre sensitivity results, many experts are asking whether it should be compared instead with optical colonoscopy or air contrast barium enema.
GE prepares to launch multislice SPECT/CT
November 10th 2004Providing attenuation correction in SPECT/CT is no longer enough for GE Healthcare. The company that pioneered hybrid imaging five years ago with its Hawkeye Infinia will release a multislice version of the system a few weeks from now at the RSNA meeting. The reason is not so much the market as GE’s competitors.
Industry enters regulatory doldrums as FDA clearances dip in September
November 10th 2004A lull enveloped September, as FDA reviewers cleared just 25 new radiological devices -- a slight dip from August and well below the earlier summer months, which rode into the high 30s. The industry was still well ahead of last year, however, in the total number of devices cleared for marketing in the U.S.
Working group develops standard reporting system for CT colonography
November 1st 2004Taking a cue from breast imaging, an international working group has developed a standardized reporting system for CT colonography. The step could help it win wider acceptance as a screening strategy for colon cancer.