Deep Learning Attenuation Correction

A Breakthrough in SPECT Myocardial Perfusion Imaging

Spectrum Dynamics has developed an Artificial Intelligence (AI) methodology for attenuation correction for its D-SPECT® Series cardiac camera. It’s another innovation from Spectrum Dynamics to truly transform nuclear cardiology.

TruCorr Adresses the Challenges Created by Attenuation Artifacts

TruCorr is a revolutionary approach that uses Deep Learning to generate attenuation corrected myocardial perfusion images. This new capability for the D-SPECT Cardiac Digital SPECT improves image quality and integrates seamlessly with the existing Myocardial Perfusion Imaging (MPI) existing workflow.

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A Patient-Centered Innovation for D-SPECT That Improves Accuracy and Ease of SPECT Imaging

Enhance the value of SPECT in myocardial perfusion imaging with CZT-based images corrected with TruCorr. TruCorr is based on the patient's SPECT myocardial perfusion emission data and offers a more convenient and efficient attenuation correction process for both clinicians and patients.


With TruCorr your practice will gain more time and resources to dedicate where they are needed most, as well as more accurate imaging to guide care decisions.

Deep Learning Attenuation Correction (DLAC) Methodology

TruCorr is based on a convolutional neural network (CNN) that was trained to correct reconstructed emission data. It uses only the SPECT data from a single acquisition, with no CT or Gd-153 transmission scan required or additional time beyond D-SPECT standard clinical protocols.

Seamless Workflow from Acquisition Through Image Review

In the integrated TruCorr workflow, the TruSPECT workstation does all the work, generating deep learning attenuation corrected (DLAC) datasets for you to review in your preferred image viewing program.

TruSPECT Workstation Integration: Apply TruCorr and generate attenuation corrected images by using the workflow integrated in the D-SPECT Workstation.

Flexible Patient Positioning: Utilize TruCorr in supine or upright patient scanning positioning.

Easy-to-access results: Review images using your preferred cardiac analysis software, such as 4DM or Cedars.


3 Simple Steps to Improved Image Quality:

 Step 1: Select the patient folder.
Step 2: Select the dataset for attenuation correction.
Step 3: Click the TruCorr button. 
Reconstruction starts immediately and the system generates attenuation corrected myocardial perfusion images quickly and easily.

Clinical Cases

uncorrected 1 TruCorr 1
uncorrected_03 corrected_03

<<< TruCorr

Non-Corrected >>>

Non-corrected 2 Trucorr 2

<<< TruCorr

Non-Corrected >>>

non corrected 3 Trucorr 3

<<< TruCorr

Non-Corrected >>>

Female; 64.4kg; 24.2 BMI

Female; 91.7kg; 37.0 BMI

Male; 63.1kg; 21.8 BMI
151.7MBq/584.6 MBq


“In our experience, it has dramatically reduced the perceived necessity to proceed with a rest image. It created greater uniformity in the images such that normal is easy to recognize and we can confidently say no, this patient does not need to go on to have a rest image.”
Timothy M. Bateman M.D.
Co-Director, Cardiovascular Radiologic Imaging, Mid America Heart Institute Professor of Medicine, University of Missouri-Kansas City, Kansas City, Missouri
“Our initial experience with TruCorr attenuation correction has been encouraging. We have obtained marked improvement in image quality compared to uncorrected images.”
Marvin W. Kronenberg, M.D.
Director Heart Station and Nuclear Cardiology, Vanderbilt Heart and Vascular Institute.

Innovations that Transform SPECT Cardiac Imaging

Fifteen years after the introduction of the first digital SPECT cardiac camera, Spectrum Dynamics continues to set the standard in digital SPECT imaging. Through close collaboration with the brightest minds in nuclear medicine – our customers – we have created a true paradigm shift in design, workflow and diagnostic capabilities. We’re continuously expanding our offerings, scanner features, and functionalities to ensure efficient clinical workflows and an optimal patient experience. We are proud of our reputation for building authentic partnerships supporting original research.


TruCorr Overview

TruCorr Introduction

TruCorr Technical Brief

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Collin Schaeffer

VP Marketing

Collin Schaeffer serves as Vice President of Marketing for Spectrum Dynamics Medical and is responsible for leading the global marketing organization.

Prior to joining the company and through his more than 17 years in the nuclear medicine and molecular imaging industry, Collin gained an array of experience in marketing, product management, and R&D.

Collin holds a Bachelor of Science in nuclear medicine technology.

Xin Ma

Guang Mai CEO

Xin serves as Shanghai Guangmai (SDs China Division) CEO since 2021.

Before joining the company, Xin served as CEO at Foze Medical Technology Limited and CEO at Shanghai Hi-tech Medical Technology limited for over 12 years.

Xin graduated from Kellogg School of management with MBA degree and from London School of Economics with MSc in Information Technology.

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Shlomi Aloya

VP Customer Support

Shlomi Aloya  is responsible for leading the global customer support organization of Spectrum Dynamics Medical. 

Shlomi has a vast service, operation and R&D experience of over 22 years in leading technical teams for capital equipment companies. 

Shlomi holds BA Executives degree  Business Administration and a M.A. Decision making & Negotiation

Ruthie Ben-kish

VP of Product development

Ruthie BenKish serves as the director of software development anmanages the main products development programs in Spectrum Dynamics Medical. 

Ruthie joined the company as software department manager and was then promoted to Director of Software development before assuming her current role. Ruthie brings to Spectrum Dynamics Medical over 25 years of experience in development of medical imaging and diagnostic systems of multiple modalities. 

Ruthie holds a BSc degree in Electrical Engineering and a MSc degree in Biomedical Engineering from the Technion Institute of Technology.

Dalia Shiti

VP Clinical Applications

Dalia Shiti serves as Spectrum Dynamics Medical Vice President of clinical applications being responsible for the applications training of the company’s customers worldwide. 

In her previous roles in the company Dalia served as clinical applications specialist and clinical application manager.   

Before joining the company Dalia served as leading technician in Bnai Zion Medical Center, Israel.

Nilda Rivera

Senior Director of Product Marketing

Nilda Rivera is responsible for the worldwide marketing activities of Spectrum Dynamics Medical including trade shows, advertisement, web and social media, products definition, sales tool development etc. 

Prior to joining the company Nilda worked at GE for many years and held various senior nuclear medicine and PET sales and marketing roles. Before joining GE Nilda worked as staff nuclear medicine technologist / clinical instructor University of Miami Jackson Memorial Hospital. 

Nilda holds a BSc degree in Biology/Chemistry from the University of Miami and is also nuclear medicine technologist.

Ayelet Dekel

VP Human Resources

Ayelet Dekel serves as Spectrum Dynamics Medical Vice President of human resources, being responsible for the global people operations. 

Ayelet joined the company as supply chain manager later becoming VP of Operations and HR manager before assuming her current role in the company. 

Ayelet brings to Spectrum Dynamics 20 years of experience in the global operations and human resources management. 

Ayelet holds a BSc degree in industrial engineering and an Advanced Certificate Studies in Human Resources from Bar Ilan University. 

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Igor Naroditsky

Vice President RA & QA

Igor Naroditsky is responsible for the Regulatory Affairs and Quality Assurance of Spectrum Dynamics Medical. 

Igor brings over 20 years of solid quality, regulatory and engineering experience in the healthcare and capital equipment industry. Prior to joining Spectrum Dynamics, Igor served as Vice President of Quality and Regulatory at KarmelSonix (ASX: KSI), an Australian healthcare company. Before that, he served for 10 years as Director of Global Quality Assurance and Regulatory Affairs at Camtek (NYSE: CAMT).  

Igor holds a BSc degree in Industrial Engineering from Ben Gurion University and a MSc degree in System Engineering and Management from the Technion Institute of Technology and is a Certified Quality Engineer. 

Amir Stadtmauer

VP Operations

Amir Stadtmauer is responsible for leading the global operations activities of Spectrum Dynamics Medicalwhich includes manufacturing, sourcing, logisticsinformation system and engineering 

Amir has a vast supply chain experience of over 22 years in leading operation teams of capital equipment companies. 

Amir holds an MSc degree in Industrial Engineering and Management from Tel-Aviv University.

Tomer Gabay

Chief Financial Officer

Tomer Gabay Serves as Spectrum Dynamics Medical CFO, being responsible for managing the company’s finances, including financial planning, management of financial risks, record-keeping, and financial reporting.

Prior to his appointment as CFO, Tomer Served as Director of Finance and controller of the company.

Before joining the company, Tomer served as an audit manager of public and private companies in various industries at PwC Israel.

Tomer brings over 10 years of experience in Finance, Business and Operations in global organizations as well as startups including business planning, budgeting, forecasting, negotiations, due-diligence and fund raising. Tomer holds a BA degree in economics and accounting, and is a certified public accountant.

Nathaniel Roth

Chief R&D and Clinical Research Officer

Nathaniel Roth serves as Spectrum Dynamics Medical Vice President of research and development where he oversees and leads the development of the company’s products, clinical research and innovative technologies. 

Nathaniel joined the company as physicist later taking roles of Chief Physicist, Chief Physicist and Clinical Research Director, R&D manager before assuming his current role. 

Prior to joining the company, Nathaniel served as physicist for EADS, a military field company.  

Nathaniel holds a MSc degree in physics from University of Nice, France with additional post graduate degree in optics from the University of Saint Etienne.

Jim Haisler

Chief Commercial Officer

Jim Haisler heads the global commercial operations of Spectrum Dynamics Medical being responsible for sales and marketing of the company’s products. 

Jim brings to the company extensive experience in general management, sales and marketing in the field of medical diagnostic imaging and therapy.  

Prior to joining the companyJim held executive level sales management positions with Philips Medical Systems, PhyMatrix Diagnostic Imaging, Dornier Medical Systems, N.A. and ADAC Laboratories.  

Jim has an educational background in X-ray and Nuclear Medicine Technology and holds an MBA Degree in Business from Pepperdine University. 

Yoel Zilberstien

Founder, CTO & Business Development

Yoel Zilberstien is the founder of Spectrum Dynamics Medical and serves today as Chief Technology Officer and heads the business development of the company, Yoel is also responsible and is the inventor and coinventor of the company’s formidable patent and trade secretportfolio 

Yoel started his career as mechanical engineer in Elscint in the nuclear medicine division where he developed many of the technologies that have become standard within the SPECT industry. This division was later bought by GE. After leaving Elscint Yoel joined Biosense who focused on Electro-Physiology where he co-invented an endo-vascular GPS guidance system today known as the Carto system. Biosense was later bought by Johnson & Johnson.  

In 2000 Yoel founded the Spectrum Dynamics Medical with the vision of transforming the slow and unclear analog nuclear imaging technology to clear, digital and almost online imaging. Thereby providing the platforms for innovative clinical imaging therapy guiding applications. 

Yoel holds BSc degree in mechanical engineering from the Technion Institute of Technology. 

Gilad Yoeli

Chief Executive Officer

Gilad serves as Spectrum Dynamics Medical CEO since 2019. 

Before assuming the role of CEO Gilad served as the company CFO and chief operations officer of the company 

Before joining the company Gilad served as Chief Financial Officer at CoreFlow, and Senior Manager at Ernst & Young.  

Gilad graduated the University of Haifa with a BA degree in Economics and has spent his career in roles of increasing responsibility giving him a great range of exposure and leadership in business planning, medical devices, entrepreneurship, venture capital, and biotechnology.