AIDR 3D Enhanced Integrated

The Right Dose. Every Patient. Every Time.

Adaptive Iterative Dose Reduction (AIDR), the industry’s most comprehensive dose management controls include AIDR 3D technology that automatically optimises dose for every procedure with adaptive and integrated tools. In order to achieve the highest quality images, with reduced dose levels, the Aquilion ONE family implements an array of reduction strategies. These strategies are implemented at every stage in the scanning process from patient registration through data acquisition, raw data and image reconstruction.


Balance of image quality and radiation dose is the fundamental challenge for physicians in performing routine clinical examinations while adhering to the ALARA principle. With the integration of AIDR 3D into SURE Exposure controls, the radiation exposure is automatically reduced before the scan for the diagnostic task at hand, no matter what the size or shape of the patient.

Yasuo Nobuta, GM, CT Systems Division, Canon Medical Systems

Personalised Dose Management

Developed as the next step in the evolution of noise reduction technology. AIDR 3D, is integrated into the Exposure 3D settings, this iterative algorithm removes noise in the raw and image data space, by analysing and the processing the data repeatedly.

Ultra Low Dose Chest 0.08 mSv1. DLP 1AAPM Report No. 96


  1. The system prompts the user to select the appropriate protocol based on patient age, weight and exam type.
  2. Dose is displayed on the console prior to scanning for operator confirmation and validation.
  3. Aquilion ONE includes the National Electrical Manufacturers Association (NEMA) XR-25 Dose Check requiring dose notification and alert features.


  1. Integrated XYZ mA modulation is scanogram-based to automatically reduce patient dose.
  2. Active Collimation limits helical over-ranging, reducing dose delivered to the patient on all helical scans.
  3. Variable Helical Pitch (vHP) changes the helical pitch automatically from an ECG gated to a non-ECG gated exam, saving dose, IV contrast and time.


  1. AIDR adaptively targets image noise, this iterative process can be used to lower patient dose while maintaining spatial resolution and image texture.
  2. Quantum Denoising Software (QDS) reduces image noise to optimise image quality while lowering patient dose.
  3. Boost 3D™ improves image quality and lowers dose by selectively reducing noise and streak artifacts from those areas where it is needed.

Lower Radiation Dose and Maximise Image Quality

AIDR 3D, is designed to lower radiation dose and maximise image quality all with accelerated workflow.

Active Collimation

In Helical scanning, exposure is needed before and after the planned scan range in order to reconstruct images. This over-ranging requires at least one extra rotation, although only a small portion of this data is utilised. Active collimation synchronises the width of the X-ray beam at the ends of the scan range to the clinically useful area needed for image reconstruction. By eliminating exposure that is not used for diagnosis, patient dose can be reduced.

AIDR 3D Enhanced Active Collimation

Evolution of AIDR

Adaptive Iterative Dose Reduction 3D (AIDR 3D) is the latest generation of Canon Medicals’s dose reduction technology that is fully integrated into the imaging chain, and optimised for busy clinical environments.

1st Generation

Image Based Iterative
Noise Reduction Algorithm

2nd Generation

Integration into SURE Exposure 3D settings

3rd Generation

Noise reduction in the raw
and image data space

4th Generation
AIDR 3D Enhanced

Optimised noise reduction, image texture and iterations


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