QA StereoChecker

Filmless CyberKnife^® QA System

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Easy Method, Better Practice

Designed to be used by both physicists and therapists, this easy method for complete daily CyberKnife QA enables improved frequency and depth of QA practices, potentially improving clinical results.

Filmless and Fast

No film needed. Achieve accurate results within 0.1 mm in less time - hours reduced to minutes - while saving money and potentially increasing patient safety.

QA is done using the clinical pathway rather than the typical QA service mode for more realistic and faster results.

Features & Benefits

Automated Iris™ QA
(Accuray)

Complete in 5 minutes
Scan quality data every morning
Measure profiles, field width, penumbra, flatness
Capable of detecting a 0.1 mm field size variation

Treatment Localization
System QA-TLS/TDS
(Accuray Quality Assurance™)

Complete in 5 minutes
Replaces film-based AQA and is faster and easier
Measure absolute eccentric and center deviation
Capable of detecting a 0.5 mm total translational offset

Picket Fence and
Garden Fence Tests

Complete in 5 minutes
Replaces daily non-quantitative daily film-based Picket Fence Tests and monthly Garden Fence Tests
Measures planned vs. acquired leaf patterns
Capable of detecting leaf variations of 0.2 mm

Specifications

QA StereoChecker
Dimensions	38.7 cm L x 32.7 cm W x 4.9 cm H
Photons	⁶⁰Co to 15 MV
Sensor
Total Pixel Number	1024 x 1024
Active Pixel Number	1000 x 1000
Pitch	200 µm
Total area	204.8 x 204.8 mm²
Electronics
ADC	16 bit, 1 MSps
Detector
Dynamic Range	> 88 dB
Scintillator	Gd₂O₂S:Tb
Software Specifications
Operating system	Windows 7 or Windows 10 (64 bit); English version is required in all cases
Processor	Intel Core (At least dual-core recommended)
Memory	8 GB RAM (16 recommended)
Hard Drive	2 GB Free (20 GB Recommended)
Screen resolution	1024 x 768 or higher
Ports	RJ45 (Ethernet)

"We have been very happy with our purchase of the QA StereoChecker. Since acquiring the QASC, CyberKnife daily and monthly MLC and Iris QA at our clinic has been a breeze. The ease of use, coupled with the high resolution, makes me and my therapist’s life so much easier. We currently do a lot of patient specific SRS/SBRT QA with film, and having to be largely filmless with machine QA is big deal. Definitely a worthwhile investment, especially considering the future potential of this device."

Sidney N Tazeh M.Sc., DABR CyberKnife Medical Physicist James A. Haley VA Medical Center

"TOYOTA Memorial Hospital utilizes the just-in-time concept of TPS (TOYOTA production system) which involves efficiently and completely eliminating waste, inconsistencies, and unreasonable requirements on the production line.

So, for that reason, we purchased QASC in order to eliminate unnecessary time, unnecessary costs like film, and inconsistencies with film analyses. Moreover, QASC is easy to use.

Iris QA that actually took more than 4 hours was shortened to about 10 minutes. Measurement and analysis of the flatness test was also easy and our working hours dramatically decreased."

Junji Suzuki, Ph.D. Medical Physicist TOYOTA Memorial Hospital