Redefining Image Quality and Workflow in CT: TrueFidelity Meets GSI

Redefining Image Quality and Workflow in CT: TrueFidelity Meets GSI

In the world of CT imaging, advancements in image quality and dose optimization are not just technical achievements – they are critical improvements that impact patient outcomes and the overall efficiency of radiological practices. GE Healthcare has long been at the forefront of these innovations, and today, with the application of TrueFidelity deep learning image reconstruction to GSI (Gemstone Spectral Imaging), we are proud to unveil a new benchmark in CT imaging.

GE HealthCare innovation timeline on spectral CT


TrueFidelity for GSI: Pioneering the Next Generation of Dual Energy CT

TrueFidelity, GE HealthCare's advanced AI-based image reconstruction technology, has already been recognized for its unparalleled ability to deliver images with improved clarity, noise reduction, and anatomical detail. Now, by integrating TrueFidelity with GSI, we’ve enhanced our dual energy solution, offering unmatched image detail and dose optimization.

TrueFidelity and GSI provide a solution that can be standardized, adaptable, and impactful in everyday clinical scenarios, which makes it a true game-changer in the field of CT.

The technical capabilities of TrueFidelity applied to GSI are transforming how clinicians approach dual energy acquisitions. Traditionally, dual energy CT has been reserved for specialized applications, but now, thanks to the enhanced quality and streamlined workflow, it can be standardized and applied in nearly all routine imaging activities. This means healthcare providers can fully leverage the clinical benefits of dual energy imaging without the complexity and limitations of past solutions.


How It Works: Technical Insights

TrueFidelity brings the power of deep learning to the reconstruction of GSI data, offering significant advantages in the following key areas:

  1. Image Detail: TrueFidelity enhances image reconstruction at each energy level, allowing for a remarkable increase in contrast-to-noise ratio. This results in sharper, clearer images, where even the smallest anatomical structures are visible with precision.
  2. Dose Optimization: One of the major benefits of this technology is the ability to achieve high image quality at a lower radiation dose. This dose optimization ensures patient safety without sacrificing diagnostic confidence – a feature that is especially important in pediatric and oncology imaging.
  3. Material Differentiation: GSI’s dual energy platform already excels in material decomposition, but with TrueFidelity, the differentiation between tissues, bone, and lesions is even more pronounced, providing clinicians with superior diagnostic clarity.
  4. Consistency Across Scans: TrueFidelity helps deliver consistency in image quality across different patient body types and scan conditions, making dual energy acquisition feasible and reliable for routine clinical use.
  5. Standardization of Dual Energy: By applying TrueFidelity to GSI, GE HealthCare has brought dual energy imaging into the realm of standardized, everyday clinical applications. This means practices can more easily adopt dual energy protocols in routine settings, expanding the benefits of dual energy to more patients.

A schematic of TrueFidelity for GSI image generation chain. The image quality benefits are designed to apply to all GSI image types.


Confirmed by Extensive Research and Bibliography

What sets GE Healthcare’s dual energy solution apart is not just the technological prowess but the extensive research and bibliography that back it. With numerous peer-reviewed studies, clinical validations, and direct comparisons, the benefits of TrueFidelity applied to GSI have been consistently demonstrated. This extensive body of work confirms that GE HealthCare’s solution stands strong against even the most advanced competitor technologies.

This technology offers healthcare professionals the ability to consistently achieve high-quality images, optimize radiation dose, and integrate dual energy into routine clinical practice.

Key Clinical Benefits, Confirmed in Studies:

  • Oncology: Precise tumor characterization through material decomposition and improved contrast resolution, leading to more confident diagnoses.
  • Vascular Imaging: Enhanced visualization of vessels and detection of abnormalities like plaques or stenosis, with minimal artifacts.


A patient suspicious of peripheral arterial disease received run-off spectral CT angiography, reconstructed with TrueFidelity at high level. The superb image quality of 50 keV helps recover the contrast visualization of the right distal vascular segments with the poor circulation and delayed propagation of contrast media.


  • Musculoskeletal: Optimized bone and tissue contrast, providing detailed insights in complex cases, such as trauma or osteoarthritis.

These findings underscore the competitive edge of GE’s technology over other available solutions, particularly when it comes to dose management, ease of use, and workflow efficiency.

GE Healthcare’s solution offers a combination of high image quality, optimized radiation dose, and practical integration into routine workflows, all while being more accessible and deployable across diverse healthcare settings.

TrueFidelity and GSI provide a solution that can be standardized, adaptable, and impactful in everyday clinical scenarios, which makes it a true game-changer in the field of CT.


A patient with BMI 29 who underwent transarterial chemoembolization (TACE) for unresectable hepatocellular carcinoma (HCC). Two phases thoraco-abdomino-pelvic CT obtained with GSI protocols and 60ml contrast media. Thin slice 40keV and iodine images reconstructed with High-level of TrueFidelity demonstrate low noise, high iodine contrast-noise-ratio with clear lesion conspicuity.


A New Era in Dual Energy Imaging

By integrating TrueFidelity into GSI dual energy, GE Healthcare is not just delivering incremental improvements – we are redefining what’s possible in CT imaging. This technology offers healthcare professionals the ability to consistently achieve high-quality images, optimize radiation dose, and integrate dual energy into routine clinical practice.

As radiology continues to evolve, GE HealthCare remains committed to pioneering advancements that bring better diagnostic tools to clinicians and improve patient outcomes across the board.

Discover more about TrueFidelity GSI and its clinical capabilities on the dedicated webpage.

For more insights into the latest advancements in medical imaging, connect with me on LinkedIn. Together, we can explore how these innovations are shaping the future of healthcare.

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