The World's First Cardiac Spectral CT

The Discovery CT750 HD FREEdom Edition* is designed to address the foremost challenges in Cardiac CT, such as radiation dose, calcium blooming, coronary motion, high heart rates, plaque composition and myocardial perfusion.

Discovery CT750 HD FREEdom Edition Cardiac CT

Built on the Gemstone* technology and low dose innovations, the Discovery CT750 HD FREEdom Edition delivers High Definition Cardiac images, low dose capabilities and offers breakthrough innovations including Motion FREEdom, Calcium FREEdom and Horizon FREE technologies.

[A] Obtained by ICRP using a chest factor of 0.014DLP.

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Cardiac Imaging

HD Cardiac Imaging

Performances in calcium blooming reduction, stent visualisation and in stenosis assessment may allow for diagnostic accuracy and are important parameters that may affect the positive predictive value.

With a cardiac spatial resolution of 18.2lp/cm, the Discovery CT750 HD FREEdom Edition is the industry leader in cardiac spatial resolution1.

The resolution of the Discovery CT750 HD FREEdom Edition is important for reduction in calcium blooming compared to standard resolution, giving clearer images for a confident diagnosis. It may also help you accurately quantify stenosis in coronary vessels. 

1. Based upon internal test data comparing Discovery CT750 HD cardiac half-scan spatial resolution to data from Advanced CT Scanners for Coronary Angiography, ImPACT Report CEP10043, March, 2010, available at http://www.impactscan.org.

Low Dose Cardiac Imaging

SnapShot Pulse and ASiR* enable low dose not only for Coronary CT but across cardiovascular exams, enabling cardiac CT of less than 1mSv. Using SnapShot Pulse imaging and ASiR, the Discovery CT750 HD FREEdom Edition achieves a dose reduction of greater than 83% compared to gated helical acquisition.2,3,4

2. In clinical practice, the use of ASiR may reduce CT patient dose depending on the clinical task, patient size, anatomical location and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task.

3. Dose reduction was measured on a standard 20cm water phantom comparing a SnapShot Pulse prospective gated axial acquisition at 120kV/300mA and 50% ASiR to a cardiac helical acquisition 120kV/500mA without ASiR both with a 224mm scan coverage.

4. In clinical practice, the use of SnapShot Pulse may reduce cardiac CT patient dose depending on the clinical task and patient heart rate. A consultation with a radiologist should be made to determine the appropriate acquisition mode and scan settings to obtain diagnostic image quality for the particular clinical task.

Motion FREEdom

The Discovery CT750 HD FREEdom Edition includes breakthrough innovations such as SnapShot Freeze, intelligent coronary motion correction.

While gantry speed alone cannot completely freeze coronary motion, especially at high heart rates, SnapShot Freeze is designed to deliver:

  • 6X improvement in motion artifacts
  • Equivalent Gantry Rotation of 0.058sec
  • Effective Temporal Resolution of 29msec

Calcium FREEdom

Calcium FREEdom

Built on the unique Gemstone Spectral Imaging technology, enabled by ultra-fast kV switching, GSI Cardiac provides enhanced visual assessment of coronary vessels.

The ability to alternate two kVp energies at 0.25msec leads to unprecedented temporal registration (over 165 times faster than other Dual Energy technology) vital for Coronary vessel imaging.

Generating material density and monochromatic data allows for both separating materials like calcium and iodine and interactively changing monochromatic energies, which enables physicians with the ability to enhance the visual assessment of of coronary vessel patency in the presence of calcification.









1. GSI is delivered with a base set of materials from the NIST database and is engineered for the capability to add other material from this database. Currently, HAP is not included on the scanner/viewer as one of the materials, but can be loaded by the user following instructions in the GSI Viewer User Manual.

Horizon FREE

Horizon FREE

Indeed, a common IQ artifact in CT myocardial perfusion imaging is a beam hardening shadow that appears in the lateral Ventricular wall. Using GSI Cardiac, beam hardening artifact can be reduced and iodine concentration can be quantified in the myocardium which is important for accurate perfusion calculations in rest or in stress conditions.

GSI Cardiac may also provide information to assist with plaque material composition assessments via the HU Spectral Curves.

SnapShot Assist

Cardiac Scan Protocol Assistance

Error free cardiac exams can be challenging. Setup, scanning and reconstruction vary with patient condition. The Discovery CT750 HD FREEdom Edition also features SnapShot Assist that helps you optimise cardiac scanning for individual patients based on their specific parameters, thus helping the creation of advanced vessel path reconstructions.

SnapShot Assist helps you provide consistent application of advanced cardiac features, and reduces the complexity of creating optimal, SnapShot Freeze diagnostic images.Cardiac scan guidance can be tailored by your institution with easy, direct control of scan type ranges and thresholds. Using parameters based on your best practice, SnapShot Assist guides you to robust, reliable cardiac scanning.

Fast, reliable, reproducible cardiac imaging.

Clinical Images


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Downloads

Value CTA Changing Patient Management in ED

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Reaching New Heights CT Cardiac Imaging

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Technical Innovation of Spatial Resolution

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HD FREEdom Edition

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