Feature | July 30, 2012| Dave Fornell

New CT Scanner Technology Highlighted at SCCT 2012

Detector hardware, software advances help improve image quality at a lower dose

The Aquilion Prime system has an 80-slice detector, but can be upgraded in the field to a 180-slice system.

Siemens' Stellar detector was released in early 2012. The detector uses mirocircuits in place of soldered circuit boards, which helps reduce electronic noise, providing for clearer images at lower radiation doses.

Siemens' Stellar detector was released in early 2012. The detector uses mirocircuits in place of soldered circuit boards, which helps reduce electronic noise, providing for clearer images at lower radiation doses.

Computed tomography (CT) vendors highlighted several recent improvements to their imaging systems during the 2012 Society of Cardiovascular CT (SCCT) annual scientific meeting in July in Baltimore, Md.  

GE highlighted its Discovery CT750 HD FREEdom scanner, which offers a new type of detector for better signal-to-noise ratios and new reconstruction software to reduce stitching artifacts and noise of low-dose scans. It also offers the ability to perform dual energy scans using a single X-ray tube modulated every 0.5 milliseconds between 80 and 140 kVp.

The system’s FREEdom (Fast Registered Energies and ECG) software offers intelligent motion correction via SnapShot Freeze, enhanced coronary visualization even in the presence of calcium, detailed plaque material composition assessment and accurate perfusion calculations. SnapShot Freeze is supposed to significantly reduce coronary motion and overcome the limitation of all hardware-only solutions. It precisely detects vessel motion and velocity and determines actual vessel position and makes corrections.

“SnapShot Freeze will be a game changer by improving the effective temporal resolution, and from the initial images, I see significantly reduced motion artifacts and significantly improved image clarity,” said James Min, director of cardiac imaging research and co-director of cardiac imaging at Cedars Sinai Hospital and current president of SCCT. He is a principal investigator for the VICTORY trial, which is evaluating the diagnostic accuracy of SnapShot Freeze motion and stitching artifact correction.

Toshiba’s newest CT system is the Aquilion Prime, which is the replacement for its previous 64-slice system. It is an 80-slice system that can be upgraded in the field over a weekend to a 180-slice system. It offers a 78 mm bore and has 660-pound capacity tables to accommodate larger patients.

Earlier this year, Siemens introduced the new Stellar detector for its CT systems, which uses integrated, printed microcircuits instead of soldered circuit boards. This reduces the amount of electronic noise in scans by about 20 percent. The new detectors also overall improve image quality by reducing calcium and metal blooming, so it is easier to evaluate in-stent restenosis.

Related Content

CT Shows Enlarged Aortas in Former Pro Football Players

3-D rendering from a cardiac CT dataset demonstrating mild dilation of the ascending aorta. Image courtesy of Christopher Maroules, M.D.

News | Computed Tomography (CT) | January 12, 2018
Former National Football League (NFL) players are more likely to have enlarged aortas, a condition that may put them at...
Siemens Healthineers Strengthens CT Portfolio With Four New Systems at RSNA 2017

The Somatom Force with the new FAST 3D Camera

Technology | Computed Tomography (CT) | December 14, 2017
December 14, 2017 — Siemens Healthineers introduced four new...
Toshiba Medical Introduces Aquilion Prime SP CT System at RSNA 2017
Technology | Computed Tomography (CT) | December 13, 2017
December 13, 2017 — Toshiba Medical, a Canon Group company, introduced its new Aquilion Prime SP...
Philips Debuts IQon Elite Spectral CT Scanner at RSNA 2017
Technology | Computed Tomography (CT) | December 11, 2017
At the 2017 Radiological Society of North America (RSNA) Annual Meeting, Philips unveiled the IQon Elite Spectral CT,...
Toshiba Highlights Ultra-High Resolution CT at RSNA 2017
News | Computed Tomography (CT) | December 06, 2017
Toshiba Medical, a Canon Group company, showcased the Aquilion Precision, what it calls the world’s first ultra-high...
Samsung Unveils Mobile CT OmniTom at RSNA 2017
Technology | Computed Tomography (CT) | November 26, 2017
Samsung Electronics debuted its OmniTom mobile 16-slice computed tomography (CT) scanner at the Radiological Society of...
Siemens Healthineers Announces First U.S. Installs of Somatom go.Up CT System
News | Computed Tomography (CT) | November 15, 2017
November 15, 2017 — Center for Diagnostic Imaging (CDI), one of the nation’s largest providers of diagnostic imaging
Medis Releases QAngio CT v3.1
Technology | Computed Tomography (CT) | October 09, 2017
Medis has released a new version of its QAngio CT (computed tomography), which can now be launched from the Medis Suite...
Hitachi Supria True64 CT Receives FDA Clearance
Technology | Computed Tomography (CT) | September 15, 2017
Hitachi Healthcare Americas Inc. announced it has attained U.S. Food and Drug Administration (FDA) 510(k) clearance to...
Orange County, Calif. Hospital Adopts Siemens Somatom Force CT for Cardiac Imaging
News | Computed Tomography (CT) | September 12, 2017
Hoag Memorial Hospital Presbyterian recently became the first hospital in Orange County, Calif., to install the Siemens...
Overlay Init