A game changer!

Delta4 Discover is a state-of-the-art 4D in vivo dosimetry system—and the first and only transmission detector approved for clinical use during treatment. Radiation oncology clinics across the world can now independently verify that the prescribed dose is delivered to the patient at every fraction, in exact accordance with the prescription.

Independent verification during treatment

Ensured dose delivery

Enhanced patient safety

Optimized patient QA workflow

Replaces pre-treatment verification

Improves cancer treatment

Testimonials

What our customers say

By using the Delta4 Discover during treatment we can confirm the actual dose in the patient. The real-time dose verification from the Delta4 Discover plays an important role when physicians do treatment planning. They can adapt the plan if they find out that any errors have occurred during treatment.

Dr. Hirofumi Honda Chief physicist, Ehime University Hospital in Japan

Thanks to the Delta4 Discover´s ability to detect errors immediately after treatment, we can perform treatments without any stress or extra efforts like recalculations.

Dr. Hirofumi Honda Chief physicist, Ehime University Hospital in Japan

When implementing the Delta4 Discover it was a very simple characterization process, we did not have to do beam modeling and the automated interfacing with the R&V system enabled a seamless workflow. It is not time consuming in our daily routine and we intend to use it continuously in all treatment fractions, and also use it for our SBRT treatments and implement it in our Machine QA program.

Dr. Edoardo Petrucci Medical Physicist, Ivrea Hospital – ASLT04 in Italy

A comprehensive solution for all stakeholders

Benefits

Higher confidence for physicians

  • Evidence of delivered dose
  • Control of dose to OAR
  • Optimizes staff workflow
  • Ensures patient safety

Greater efficiency for physicists

  • Gives patient optimal QA
  • Real-time dose verification
  • Replaces pre-treatment QA
  • No need to allocate linac time to perform verification

A seamless process for therapists

  • No placing diodes on patient
  • Light field and ODI visible
  • Ensures team confidence and patient safety

Fully automated workflow

Efficiency and ease of use without additional clinical workload

When implementing the Delta4 Discover it was a very simple characterization process, we did not have to do beam modeling and the automated interfacing with the R&V system enabled a seamless workflow. It is not time consuming in our daily routine and we intend to use it continuously in all treatment fractions, and also use it for our SBRT treatments and implement it in our Machine QA program.

Dr. Edoardo Petrucci 

Medical Physicist, Ivrea Hospital ASLT04, Italy

Plan import

The physicist imports the patient’s DICOM files into the Delta4 Software. No additional recalculations required.

Delivery verification

The therapist selects the patient to be treated and the ADI interface automatically communicates with the Delta4 Software, which then selects the proper patient for verification. The Delta4 Discover monitors the treatment plan in real-time, and the Delta4 software collects treatment data.

Data analysis

Upon completion of treatment, data is automatically analyzed and displayed in the Delta4 Software.

Review and reporting

Treatment data and results are stored in the Delta4 Software. In case of an error, the physicist is immediately notified via an email automatically generated by the system. An overview of the treatment course progress and results are always available.

Discover precision in action

Features

Delta4 Discover

Innovative in design and technical details

Applications

  • Hypofractionation
  • SRS and SBRT
  • VMAT and IMRT
  • 4D Treatments
  • 3D Conformal
  • Adaptive RT

No recommissioning

  • Attenuation ~1%*

* 6MV, 10x10cm field

Used at all fractions

  • Increased skin dose ~1%

*6MV, 10X10cm field

Highest resolution

  • Consists of 4040 detectors
  • 2.5 mm*
  • Verifies the MLC leaf position with sub-mm accuracy

*along MLC trajectories when projected down to iso-center plane

Outstanding accuracy

  • Measures within 1.5%*

*Dose measurements in maintained field shape (linearity inside field)

Alternative to pre-treatment verification

Verifies all the machine parameters

  • MU
  • MLC position
  • Gantry angle
  • Collimator angle
  • Patient position

Watch webinars on-demand

DELTA4 DISCOVER CLINICAL EXPERIENCE AT IVREA HOSPITAL ASLTO4

This webinar examines the impact that Delta4 Discover has on:

  • Patient safety
  • Online Monitoring
  • Workflow
  • Clinical results

PATIENT AND MACHINE QA AT EVERY FRACTION

  • Will the patient receive the treatment prescribed?
  • What dose did the OAR receive?
  • What errors with clinical impact can be detected?
  • Can I adapt fractions to improve the treatment?
  • How can I improve the workflow?

Specification

Delta4 Discover

Accuracy

Dose measurements in prescription point Within 1.5%
MLC Positioning Determination 95% within 1 mm

Beam attenuation

Beam Attenuation About 1%¹
Increase of skin dose About 1%¹
¹6MV, 10 x 10 cm field

Detectors

Total Number 4040
Diameter 1 mm (disc shaped)
Spacing 2.5 mm* (along MLC trajectories); 5 mm* (transverse to MLC trajectories)
Area Covered 195 x 250 mm2*
Type p-Si
Sensitivity Decrease (6MV beam) 1% / 25kGy
*When projected down to isocenter plane

Weight and dimensions

Dimension Diameter: 790 mm, disc shaped
Weight 8.7 kg without batteries (0,5kg / battery)

Reduced linac clearance when mounted

E.g. Varian TrueBeam 6 mm from the top of the accessory pins, 23 mm from collimator surface

Linac’s light field

Elekta and Varian machines Delta4 Discover can be extracted so that the linac’s light field is completely visible

Battery

Operational Capacity >6 hours; Rechargeable Li Ion battery – Charger is included

™ Delta4 Discover is a trademark of ScandiDos AB (publ)
® TrueBeam is a registered trademark and Millenium MLC is a
trademark of Varian Medical Systems, Inc.

WANT TO LEARN MORE ABOUT FAST AND INDEPENDENT QA?

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News

Updates from Delta4

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