AAPM CT Performance Phantom

Model 610
MEETS GUIDELINES IN AAPM REPORT #1 “PERFORMANCE EVALUATION AND QUALITY ASSURANCE OF CT SCANNERS”

The CIRS Model 610 AAPM CT Performance Phantom offers the user a single test object that measures ten distinct CT performance parameters. The phantom design is based on the guidelines presented in Report #1 of the American Association of Physicists in Medicine Task Force on CT Scanner Phantoms. The goals of report #1 were to “(1) define ‘performance’ of a CT scanner and (2) describe methods of performance testing through utilization of particular phantoms.”

A CT number linearity insert, high contrast resolution insert and slice width insert are housed in an 8.5 “ diameter PMMA water tank with quick disconnect valves for ease of filling and draining between use. Also included is a 0.25” bone equivalent ring that can be fit over the inserts to evaluate the effects of beam hardening.

A contrast test object is adhered to the bottom of the tank that includes two rows of cavities from 1 to 0.125” diameter. The cavities can be filled with various solutions for contrast evaluation. An aluminum alignment insert is incorporated in the lid of the tank and can be interchanged with a polystyrene TLD insert for dose measurements. A user’s manual, holding cradle, filling tubes and other accessories are included.

Measurement Capability
  • Noise
  • Sensitivity / Detectability
  • Mechanical Alignment
  • Beam Hardening
  • Slice Thickness
  • Size Independence
  • Radiation Dose
  • Spatial Uniformity
  • HU Linearity
  • Spatial Resolution and line spread function

Data Sheet

AAPM CT Performance Phantom: Data Sheet

'Noise Reduction in CT Images Using a Selective Mean Filter'. Journal of Biomedical Physics & Engineering. 2020; 10 (5): 623. Shiraz University of Medical Sciences. View

Summary: A selective mean filter was tested using the Model 610, with results showing a 75% reduction in noise with no loss in spatial resolution.
'Image Quality Evaluation according to the Application of Air Mattress on Computed Tomography Equipment Table'. Journal of the Korean Society of Radiology. 2020; View
'Newton, Ben, and Clemens Kaiser. X-RAY IMAGING AT LOW CONTRAST AGENT CONCENTRATIONS AND/OR LOW DOSE RADIATION. GE HEALTHCARE AS (OSLO, NO), assignee. Patent 20130116554. 9 May 2013.'. View

References

 

Model: 610 Modality: