MEDRAD® Stellant
Intelligent and intuitive – MEDRAD® Stellant is the injector of choice for advanced CT applications providing accurate personalized delivery of contrast.*
Clear Direction. Boost Your Image.
MEDRAD® Stellant enables the flexibility of injecting contrast and saline – offering many clinical and workflow advantages, such as: using saline to perform a patency check, reducing image artifacts and providing brighter arterial imaging in CT.1,2

What is MEDRAD® Stellant?
MEDRAD® Stellant is a contrast media injection system designed for use during CT examinations, known for its innovative clinical offerings and feature set. It is the injector of choice for advanced CT applications such as cardiac and perfusion imaging.
How does MEDRAD® Stellant work?
The intuitive touch screen interface allows the user to set the injection protocol needed for the CT examination. MEDRAD® Stellant gives the user the option to store and recall up to 250 CT injection protocols for fast access. Injection protocols are easily adjusted to suit the individual patient by simply selecting the parameter to be changed and entering in the new value. Up to 6 injection phases can be programmed depending upon the area to be imaged.

Contrast Delivery
Referrers rely on prompt, accurate diagnoses to guide therapy and enable improved patient outcomes. Precise contrast delivery is expected for consistency to allow optimal image quality.
Protocol management and precise contrast delivery
Confidence
- Perform complex CTA and cardiac CT protocols
- Create a tight contrast bolus
- Enable precisely timed contrast delivery
- Individualize contrast dose with Certegra™ P3T™ 2.0
Dual syringe utilization benefits
DualFlow, simultaneous injection of contrast and saline in user-selected ratios can:1
- Enable better visualization of the right heart due to reduction of streak artifacts
- Visualize the right coronary arteries and right ventricles in a single study by achieving more uniform attenuation
Case Reports
DualFlow can provide the ability to perform simultaneous injection of contrast and saline with user-selected ratios with the MEDRAD® Stellant Dual Injection System.
![]() |
![]() |
![]() |
With single contrast phase | With saline flush | With DualFlow phase |
Jensen, CT. NASCI Abstract # 05-A-69-NASCI.
Powered by the MEDRAD® Stellant CT Injection System with Certegra™ Workstation, Certegra™ P3T™ 2.0 calculates individually optimized patient protocols for cardiac CT, pulmonary angiography and abdomen studies.
Standardizing and easing implementation of personalized patient protocols offers important benefits, including:
- Facilitating implementation of multiple CT abdomen protocol strategies
- Reducing occurrences of suboptimal CT pulmonary angiography studies3
Pulmonary Angiography: Certegra™ P3T™ vs. Standard
|
|
Certegra™ P3T™ Weight: 300 pound Contrast: 116 cc Main PA HU: 274 |
Standard Weight: 295 pound Contrast: 80 cc Main PA HU: 171 |
When compared to standard protocols, Certegra™ P3T™ Pulmonary Angiography protocols* result in a higher percentage of exams ranked diagnostic without limitation.4,5
* Albeit at a slightly higher contrast dose than the standard protocol of 80 mL
Workflow
Enhanced protocol management and injector design that enable efficiency improvements.
A simple workflow can help to save procedure time, avoid errors.
Simple to use, automated injection system*
Streamline workflow
- Integrated saline test injection with real-time pressure monitoring
- Snap-on/twist-off syringe design
- Plungers automatically advance and retract when attaching and detaching syringes
- Automatic filling and priming
- Multiphase programming, including hold/pause feature
- Programmable pressure limit
* Requires Certegra™ Workstation
Accurate post-study documentation*
Improve reporting accuracy
- Achieve workflow efficiencies
- Enables reduction of errors and information gaps6
* Requires Certegra™ Workstation
Multi-Patient Syringe System
Cost efficiency
- Perform multiple studies with a single syringe kit (for up to 12 hours)
- Recessed connections to avoid accidental contamination
- Multi-patient tube for reuse plus single-patient tube that needs to be replaced after each study
- Special check valves that prevent backflow from the patient

Scalability
Scalable options address your department’s needs – boost your image
Our customers look for solutions that can keep up with the changing demands of CT imaging at any time.
Take it to the next level
The Radimetrics™ Enterprise Platform seamlessly integrates with your hospital’s IT infrastructure as well as your Bayer smart injection devices, providing the tools to help you achieve both – your contrast and radiation dose management goals.
Certegra™ P3T™ 2.0 Software recommending personalized injection protocols
Personalized patient protocols allow technologists to individualize contrast dose protocols individually at the point of care with ease.
- Abdomen studies
- Pulmonary angiography studies
- Cardiac studies
Certegra™ Imaging System Interface (ISI) – Scanner connectivity
The Certegra™ ISI enables injectors and scanners to communicate, enhancing clinical capability by ensuring appropriate scan timing and simplifying workflow. It enables scanner and injector synchronization. Because multi-slice scanners capture images so quickly, it is critical to have optimal contrast in the area of interest at the precise moment of the scan.
We offer four products:
- Certegra™ ISI 700 (for Philips scanners)
- Certegra™ ISI 800 (for Siemens and Toshiba scanners)
- Certegra™ ISI 900 (for Siemens, Toshiba, Hitachi and General Electric scanners)
- Connect.CT sold as Philips SyncRight (for Philips scanners)
Contrast Dose Management (CDM)
CDM automates documentation of contrast injection at the point of care and throughout the post-procedure workflow.
CDM provides tools to help drive efficiency, reproducible quality and personalized care7:
- Auto-populate contrast injection records transferred to PACS, RIS and Speech Reporting (SR)
- Achieve workflow efficiencies
- Improve reporting accuracy
- Automate documentation
- Use data to inform improvement initiatives
- Accelerate report turnaround time
- Investigate and tie information to outcomes

Quality and Service
What separates good from great? A reliable partner with a continued commitment to quality and service at every step to keep our operations performing.
Dedicated experts for continuous uptime
Strengthen confidence
MEDRAD® Stellant CT Injection System with VirtualCare™ Remote Support delivers confidence with a connection to world-class monitoring, diagnosis and support.
|
|
|
Benefit | Security | Support |
---|---|---|
-Software issues are often resolved remotely, in minutes rather than hours - Hardware can be repaired in one trip, with the right parts, the first time |
If your injector is enhanced with Certegra™ Workstation: - Proprietary software updates and patches arrive seamlessly - Antivirus protection remains current* - System alerts are monitored and resolved proactively *periodic updates provided per defined schedule |
-Problems are diagnosed remotely -Solutions are developed quickly -The recovery plan is completed quickly |
High quality and reliability
Maximize trust
Not all syringes are equal. Bayer delivers a high-quality and reliable injection solution that can save costs, equipment and downtime. When choosing contrast and saline syringes, you need to consider:
.
Height | Width | Depth | Weight | |
---|---|---|---|---|
Dual Injector Head | 15.5 cm (6.1“) | 30.7 cm (12.1“) | 36.8 cm (14.5“) | 8.1 kg (17.9 lb) (without syringe) |
Base Unit | 29.2 cm (11.5“) | 27.9 cm (11.0“) | 22.2 cm (8.8“) | 6.2 kg (13.6 lb) |
Certegra® Workstation (CWS) | 34.2 cm (13.5“) | 40.0 cm (15.8“) | 30.0 cm (10.2“) | 8.0 kg (17.6 lb) |
.
Flow rate (range & increments) | 0.1–10 mL/sec in 0.1 mL increments |
---|---|
Volume (range & increments) | 1 mL to syringe capacity in 1 mL increments |
Programmable pressure limit (psi/kPa) | 200 mL syringe: 325 psi, 2241 kPa |
Scan delay | 0–300 seconds (5 minutes) in 1 second increments |
Pause | 1–900 seconds (15 minutes) in 1 second increments |
Hold | Maximum HOLD time is 20 minutes |
Syringes (volume capacity) | 200 mL sterile disposable syringe |
Maximum number of phases | 6 |
Miscellaneous Specifications | |
Electrical requirements (VAC/Hz) | 100–240 VAC, 50/60 Hz, 300 Volts-AMPs |
Syringe heat maintainer | 35 degrees C ±5 degrees, 95 degrees F ±9 degrees |
Head mounting options | Overhead counterpoise system or floor pedestal (floor pedestal includes an integral IV pole) |
DualFlow | Simultaneous injection of contrast and saline is integrated in the CWS and included |
Certegra™ P3T™ Cardiac Application | Cardiac CTA Protocol Optimization Software |
Certegra™ P3T™ Abdomen Application | Abdominal Protocol Optimization Software |
Certegra™ P3T™ Pulmonary Angiography Application | Pulmonary Angiography Protocol Optimization Software |
Informatics Starter Package | Access to modality worklist and database of injections |
PACS Outbound Interface | Send secondary capture of contrast injection to PACS |
RIS Outbound Interface | Send contrast injection information to RIS |
Speech Recognition Outbound Interface | Send contrast injection information to Speech Recognition System |
Imaging System Interfacing (ISI) | Several types of interfacing with the scanner |
VirtualCare™ * | Remote service on the injector and software to ensure faster uptime |
*available in some countries
Videos
MEDRAD® Stellant CT Injection System is easy to learn, set up and use.
.
Injector head and syringe visualization
Fast and easy syringe installation
Convenient fluid loading
Streamlined injection preparation
Simple syringe removal
Play All
.
Certegra™ Workstation Configuration
Installing Multi-Patient Disposables
Initial Set-Up: Priming
Individual Patient Use
Exchanging the Single Patient Disposable
Replacing Empty Fluid Sources
Tear-Down / Removing Multi Patient Kit
References
1 Kerl JM, Ravenel JG, Nguyen SA, et al. Radiology. 2008;247(2):356-64.
2 Jensen, CT. NASCI Abstract # 05-A-69-NASCI
3 Deible CR, Alexander J, Ocak I, et al. Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA, Medrad, Inc., Pittsburgh, PA RAD-INF-14-06087. May 2014
4 Presented at Society of Thoracic Radiology (2008) Poster Session; Christopher R. Deible MD, PhD.
5 510(k) FDA clearance number: K082905.
6 South Jersey Radiology Associates. Customer Experience: Using Radimetrics™ Enterprise Platform Contrast Dose Management* to Improve Billing Cycle Time and Enhance Reporting Efficiencies. Bayer Pharma AG, March 2015.
7 South Jersey Radiology Associates. Customer Experience: Using Radimetrics™ Enterprise Platform Contrast Dose Management* to Improve Billing Cycle Time and Enhance Reporting Efficiencies. Bayer Pharma AG, March 2015.
Related Products
Bayer CT injection systems are based on tried and tested technology with an excellent reliability track record.

MEDRAD® Avanta
An injector for X-ray angiography, engineered to meet the unique demands of your cardiac cath lab.

MEDRAD® Mark 7 Arterion
A single-head injection system for X-ray angiography, designed for high-end interventional radiology suites.
Ultravist®
Ultravist® is an iodine-containing X-ray contrast agent, approved for all modern X-ray techniques water-soluble media.
