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GE HealthCare Receives FDA Clearance of a New Deep Learning Solution for Enhanced Image Quality in PET/CT, Advancing its Leaders

CHICAGO , May 30 /Businesswire/ - GE HealthCare (Nasdaq: GEHC) today announced US FDA 510(k) clearance of Precision DL – a new, revolutionary deep learning-based image processing software included in GE HealthCare’s growing Effortless Recon DL portfolio. Precision DL provides the image quality performance benefits typically associated with hardware-based Time-of-Flight (ToF) reconstruction, including improved contrast-to-noise ratioi, contrast recoveryi, and quantitative accuracyii. The AI-based technology is available on the company’s fastest-ever-selling PET/CTiii, Omni Legend, which already boasts more than two times the sensitivity of prior digital scannersiv, enabling faster scan timesv and impressive small lesion detectabilityvi.

Together, the availability of Precision DL with Omni Legend’s ultra-high sensitivity, third generation digital detector technology marks a new era for PET/CT performance and outcomes, transitioning from ToF technology to the next generation of PET/CT performance and enabling clinicians to decode coincidence events at exceptionally fine resolutions for informed diagnoses and treatment planning.

“We can’t treat what we don’t see, which is why we require precise image quality to help diagnose, plan treatment for, and monitor disease,” explains Prof. Flavio Forrer, MD, PhD, Chairman of Nuclear Medicine in the Division of Radiology and Nuclear Medicine at Kantonsspital St. Gallen in Switzerlandvii. “Precision DL enhances image quality – enabling us to spot small lesions, including on images obtained with very low dose injections and short bedtimes, to potentially start treatment and monitoring early, which might result in improved patient outcomes. Additionally, Omni Legend offers a streamlined, simple solution that helps enable technologists to increase efficiency, enhance patient care, and reduce potential radiation exposure to medical staff vii.”

Medical imaging is a crucial tool for diagnosing disease, identifying a course of treatment, and determining whether therapy is successful for millions of patients around the world. Image quality matters – to the clinician and the patient – making the difference between finding a small lesion early or in its later stages, potentially affecting patient outcomes and disease management. For this reason, clinicians are increasingly adopting AI-based solutions for enhanced image quality compared to that of standard care.

A subset of AI and machine learning, deep learning utilizes deep neural networks, which consist of layers of mathematical equations and millions of connections and parameters that are trained and strengthened based on the desired output. In doing so, deep learning is a significant leap forward in efficacy compared to previous processes that require more human intervention, handling complex models and vast numbers of parameters with ease to help provide clinicians the time and insights they need to more confidently diagnose and care for patients.

“One of the main advantages of moving fully into the future of AI and deep learning is making state-of-the-art imaging accessible to more practices, across more care areas than ever before,” shares Jan Makela, President & CEO, Imaging, GE HealthCare. “Clinicians are seeing the value of applying deep learning technology to enhance image quality with our multi-modality family of Effortless Recon DL applications, which already includes AIR Recon DL for MR, TrueFidelity for CT, and Helix DL for X-ray. Now we are proud to add Precision DL for PET/CT, enabling more precise and personalized care across healthcare systems’ imaging departments.”

More than a new imaging processing technique, Precision DL was engineered with a sophisticated deep neural network trained on thousands of images created with multiple reconstruction methods, including ToF reconstruction, to provide the image quality performance benefits typically associated with hardware-based ToF reconstruction, such as improved contrast-to-noise ratio and contrast recoveryi.

Precision DL processes patient images for enhanced image quality, including:

  • 11% improvement on average in contrast recoveryi,
  • 23% improvement on average in contrast-to-noise ratioi,
  • 42% increase on average in small, low contrast lesion detectabilityviii, and
  • 14% improvement feature quantification accuracyii.

Altogether, a study published in the European Journal of Nuclear Medicine and Molecular Imaging, demonstrated improvement in feature quantitation, overall image sharpness, and overall diagnostic value, particularly in terms of lesion detectability and diagnostic confidence of PET/CT images reconstructed without ToF using deep learning models trained for ToF image enhancementix.

GE HealthCare’s deep-learning-enabled software is revolutionizing image acquisition and reconstruction in MR, CT, X-ray and now PET/CT, empowering clinicians and helping improve patient outcomes.

For more information about GE HealthCare’s Precision DL, Omni Legend PET/CT, or Effortless Workflow DL, please visit gehealthcare.com.

___________________________________

i Precision DL with Omni Legend 32cm data improves Contrast Recovery (CR) by 11% on average and Contrast-to-Noise Ratio (CNR) by average of 23% as compared to non-ToF reconstruction. CR and CNR demonstrated using clinical data with inserted lesions of known size, location, and contrast. Using data from Omni Legend 32 cm, CR and CNR were measured using High Precision DL and QCHD.

ii Precision DL with Omni Legend 32cm improves feature quantitation accuracy by 14% as compared to Discovery MI with ToF reconstruction, at comparable noise level. Quantitation accuracy demonstrated using clinical data with inserted lesions of known size, location, and contrast (ground truth). Feature SUVmean from Omni Legend 32 cm with High Precision DL compared to SUVmean from Discovery MI 25 cm with QCFX.

iii Based on orders data of GE HealthCare PET/CT systems since 2010.

iv Omni Legend 32 cm has up to 2.2 increase in system sensitivity as compared to Discovery MI 25 cm. Measurement follows NEMA NU 2-2018.

v Up to 53% reduction of PET scan time on Omni Legend 32 cm compared to Discovery MI 25 cm, as demonstrated in phantom testing.

vi Omni Legend 32 cm increases small lesion detectability 16% on average and up to 20%, as compared to Discovery MI 25 cm with matched scan time/injected dose, as demonstrated in phantom testing using a model observer with 4 mm lesions; average of different reconstruction methods.

vii Not a consultant for GEHC: The statements by GE’s customers described here are based on their own opinions and on results that were achieved in the customer’s unique setting. Since there is no “typical” hospital and many variables exist, i.e. hospital size, case mix, etc. there can be no guarantee that other customers will achieve the same results.

viii Omni Legend 32cm as compared to Discovery MI 25cm, at matched scan time and injected dose. Detectability using clinical data with an inserted 8 mm diameter liver lesion of known location and 2:1 contrast using a CHO model observer, comparing SNR from Omni Legend 32 cm with QCHD and Precision DL to SNR from Discovery™ MI 25 cm with QCFX.

ix Mehranian, A., Wollenweber, S.D., Walker, M.D. et al. Deep learning–based time-of-flight (ToF) image enhancement of non-ToF PET scans. Eur J of Nucl Med Mol Imaging 49, 3740–3749 (2022). https://doi.org/10.1007/s00259-022-05824-7


STORY TAGS: Product/Service, Illinois, Software, Radiology, Hardware, Health, FDA, Artificial Intelligence, Health Technology, Technology, United States, North America,

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