Technology and Design

The D-SPECT open gantry design is about patient access and comfort. The scanner is designed so nuclear departments or cardiology offices can image even the most challenging patients. During a cardiac scan, such as myocardial perfusion imaging, there is no gantry motion, so patients can easily be positioned and scanned. ​ The chair provides the flexibility to image the patient supine position, upright position or any angle in between. It supports up to 1000lb/454kg.​

Spectrum Dynamics’ unique implementation of CZT solid-state detectors has established the design as the gold standard of CZT-based SPECT cameras used in Nuclear Medicine.

CZT detectors technical advantages for SPECT imaging, when compared to traditional NaI detectors, include higher sensitivity and improved energy resolution. CZT eliminates the need for photomultiplier tubes.

Spectrum Dynamics combines the CZT modules in a proprietary and patented column design. These detector columns swivel during a SPECT scan acquisition, while the gantry is in a fixed position and close to the patient There is no perceivable motion for the patient during the scanning session. This design is beneficial in more than one way: focus the field of view in a specific or an for even higher sensitivity gains during a scan acquisition; 3D dynamic imaging of any organ; lower dose protocols; scanner throughput.

The D-SPECT camera contains 6 or 9 detector columns.
Spectrum Dynamics’ patented swivel head detectors are
pixelated to align with the parallel hole tungsten collimators
to allow for faster acquisition.
Each scanner design is optimized to allow for the gantry to be
positioned as close as possible to the patient: this ensures the
best image quality in a nuclear medicine scan: proximity with
no gantry rotation or motion.

Guided Patient Positioning for Efficient Workflow

D-SPECT: Utilizes digital technology in a unique design for high quality imaging

A Breakthrough in Nuclear Cardiac Imaging

Unique Approach in SPECT Myocardial Perfusion Imaging

D-SPECT Image Gallery

D-SPECT Series Page Case1 Image1 Analog D-SPECT Series Page Case1 Image2 Digital



D-SPECT Series Page Case2 Image1 Analog D-SPECT Series Page Case2 Image2 Digital



D-SPECT Series Page Case3 Image1 Supine D-SPECT Series Page Case3 Image2 Upgright



myocardial perfusion imaging
4min stress / 6min rest

myocardial perfusion imaging
4min stress / 6min rest

myocardial perfusion imaging
7min rest upright / supine


I have worked on the DSPECT camera since 2008.  The image quality, patient throughput, capabilities and efficiency of this camera has been top notch.  The providers continue to be satisfied with the image quality and reliability of each scan.  We are able to identify minimal defects and continue patient care accordingly.  The patients are extremely pleased with the ease and speed of imaging.  The overall throughput of the system allows us to run a highly effective and efficient department and maximize patient turnaround time.  I continue to enjoy the DSPECT camera and would recommend this system to any clinic or patient. 
Julia Tubb, B.S., CNMT, ARRT
Cardiology & Nuclear Medicine Clinical Manager Regional Clinics of Longview, TX USA
The D-SPECT camera has improved our lab in all of the following areas:  Efficiency, quality, accuracy, decreased radiation exposure and increased patient satisfaction.  We’ve had it for 3 years now have had 0% downtime.  We absolutely love it! 
De De Etherton
Nuclear Medicine Department Manager Baptist Health/Louisville Cardiology, Louisville KY, USA
The DSPECT-L camera has proven to be quite beneficial in differentiating attenuation artifacts from true defects with the added supine imaging. The added supine imaging time wasn’t an inconvenience at all. The seating has been comfortable for both average as well as obese patients. 
Lisa Gonzales, CNMT
Technical Director Cardiovascular Institute of NW FL Panama City FL
We are an outpatient cardiology office working with the nine detector D-SPECT Cardio MPI Imaging System since April 2020. We have performed over 1,700 single day rest-stress sestamibi studies on the system. Ninety-eight percent of our scans are performed in the upright position. We have scanned patient up to 485 pounds. We use the Cedars-Sinai QGS+QPS quantitative software package. All of our experience has been during the covid-19 pandemic which is a challenge. Spectrum Dynamics installed the camera and provided remote site applications training in April followed by onsite training in June. Dine Badri, the instructor, was knowledgeable and patient with us. He set the system acquisition and processing preferences to our specifications. The daily quality control procedure is timesaving and reveals a very stable system. We have experienced no downtime with the system. The system connectivity imports patient demographic data and transfers scan data to our hospital PACS. Phone support is excellent. We have been more efficient with our patient throughput. We have reduced patient sestamibi doses and reduced study acquisition time. The stationary gantry has greatly reduced patient motion artifact. Patients we have been following for years have commented how they like this system over the previous imaging systems we have used. The image quality is great. In summary we are pleased with the technical support, service support and quality of the images. The reduction in radiation exposure for the patients and technical staff is measurable. Patient comfort and throughput are improved. We are happy with the system. Thanks,
Stanley Johnson
Nuclear Medicine Lead Technologist St. Joseph’s/Candler
From the nuclear medicine physicians' perspective: "Having equipment with such a high level of performance improves clinical confidence and produces better results in less time and in the best ergonomic condition for the patients. The possibility of assessing CFR with CZT is very important in management and in making clinical decisions, especially in patients with multiverses coronary artery disease, in particular populations as diabetic patients and patients with microvascular non-obstructive heart disease.“

From the medical physicist's perspective: “The new D-SPECT CARDIO quality control is much faster and easier. The software is user-friendly, and daily QC and calibrations are very quick and easy to perform with a unique and well-defined procedure. As far as radiation protection is concerned, the D-SPECT allows injection of a lower administered activity to reduce radiation exposure while providing high-quality diagnostic images within a shorter acquisition time. It results in lower exposure to the staff.”

From the technologist's standpoint: “The D-SPECT system presents the latest generation of highly sensitive detectors arranged on a stationary gantry in a curved configuration to accommodate the patient’s heart. The unique aspect of the D-SPECT system allows patients to be imaged while sitting and positioned upright and/or supine. Upright positioning is an enhancement and an improvement for dedicated cardiac systems, especially helpful when imaging patients with chronic obstructive pulmonary disease or dyspnea, as lying flat often exacerbates shortness of breath. Superior image quality, low doses, and fast acquisition times, combined with optimal patient comfort, demonstrate that D-SPECT technology is advantageous both for the patient and the nuclear medicine professionals acquiring and reading the study."
Dr. Maria Koutelou, MD, PhD, MSc
Nuclear Medicine Physician Director of Nuclear Medicine Dept Onassis Cardiac Surgery Center

Customer Sites

The Louis Pradel Hospital, Lyon France

Morbihan Nuclear Medicine Center (CMNM), Vannes and Lorient France

Centre Georges-François Leclerc, France

Emory University Hospital Midtown, Atlanta, USA

John Radcliffe Hospital, Oxford United Kingdom


White Paper: Calculating Flow Reserve with CZT SPECT: Fundamentals and Applications


Get full access to all exclusive content

Complete the form below and verify your email address to unlock the content.

Get full access to all exclusive content

Complete the form below and verify your email address to unlock the content.

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.

This website uses cookies to ensure you get the best experience on our website.

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. 

Get full access to all exclusive content

Complete the form below and verify your email address to unlock the content.

Get full access to all exclusive content

Complete the form below and verify your email address to unlock the content.

which product would you like to demo

Create a Username & Password

Please fill out this form to access our webinars

Complete the form below and verify your email address to nlock the content.

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.