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Low-Contrast Detectability Module

Sun Nuclear

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An Advanced iqModule™ to expand the capabilities of your CT ACR 464 phantom. Test the low contrast detectability of even the most demanding CT scanners using three contrast levels, scientifically sized objects, and noise-robust redundancy.


  • Evaluate Low Contrast Detectability at 3 different contrast levels
    • 0.3%, 0.6%, and 1.0% (3 HU, 6 HU, and 10 HU)
  • Sizes of each contrast object range from 1.5 to 25 mm
  • Multiple contrast objects at each size for noise robustness


  • Three precisely formulated contrast levels test performance across a range of scanners and protocols
  • Robust against noise with two objects at each contrast and size below 25 mm
  • Tests full-slice and sub-slice detectability
  • Fits perfectly with your 464 and/or extension plates

Material: Epoxy interior, with a shell of our new CT High Equivalency Solid Water®
Diameter: 20.0 cm (7.9 in)
Length: 4.0 cm (1.57 in)
Contrast Levels: 0.3 % (3 HU), 0.6 % (6 HU), 1.0 % (10 HU)
Sizes at Each Contrast Level: 25 mm, and 2 at each of 1.5, 2, 3, 4, 5, 7, 9, and 12 mm
Sizes of Sub-Slice Objects: 2, 3, 5, 7, and 10 mm (cylinder diameter and length), at each contrast level
Warranty: 5 years

Enabling Healthier Lives

Our mission is to enable healthier lives by improving the avoidance, detection and treatment of cancer. We deliver Patient Safety solutions for Diagnostic Imaging and Radiation Therapy centers globally.

Independence & Integration

We believe independence and integration are equally critical to Quality Management for today’s hospitals, cancer centers and healthcare networks. Independence provides unbiased assurance issues will be caught. Seamless integration with technologies and workflows is how we simplify, standardize and automate processes, for less subjectivity and greater overall efficiency.

Solutions for Every Step

Patient Safety Starts Here, with the widest range of Quality Management solutions, all available from a single source. For the Diagnostic field, we ensure the quality of imaging techniques. For Radiation Therapy, we support advanced Patient and Machine QA, as well as Dosimetry.

Industry-Leading Capabilities

Our global Training, Service and Support programs help ease new technology adoption, enhance workflows and improve Patient Safety. Combined, our Support team has 300+ years of experience in the field, and includes more than 20 Medical Physicists. Support Centers across the globe ensure optimal coverage.

Decades-Deep Alliances

For 35 years, Sun Nuclear has partnered with fellow industry vendors, scientific associations, and customers around the world. We know Quality Management, from all angles, and we’re honored more than 5,000 facilities worldwide choose Sun Nuclear solutions to keep their patients safe.

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