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ACR CT Accreditation Phantom

The ACR CT Accreditation Phantom 464 is designed to be an integral part of the American College of Radiology (ACR) CT Accreditation Program. This voluntary program provides physicians with an opportunity for a comprehensive peer review of their CT facility, personnel qualifications, image quality and quality assurance programs. CT accreditation encourages patient’s confidence and demonstrates your commitment to quality healthcare to payers, regulatory agencies and employers.

The ACR CT Accreditation Phantom can be used for initial QA assessment and routine monthly QA testing to help ensure that patients are receiving the lowest possible CT dose. Solid Water ® construction makes for a convenient, physically stable test device that provides reproducible results over time.

The phantom consists of four modules designed to examine a broad range of scanner parameters. It features white scribed markings on the axial, coronal and sagittal axis, and HEAD, FOOT and TOP markings to ensure proper alignment. The optional phantom base, 464-STND (shown above with the phantom) provides stability, makes alignment easier and features built-in leveling devices.

464-PKG Accreditation CT Phantom, includes ACR CT Phantom, Software and Carrying Case and Stand

  

CT Phantom ACR

SPECIFICATIONS
Phantom Construction Matrix Material Solid Water®, 0 ±5 HU
Length 16 cm (6.30 in)
Diameter 20 cm (7.88 in)
Weight 5.3 kg (11.75 lbs)

Imbedded Test Objects
Water Equivalent Linearity Rod Solid Water®, 0 HU
Bone Equivalent Linearity Rod 915 HU bone tissue equivalent material
Acrylic Linearity Rod Cast acrylic Polyethylene Linearity Rod Low density polyethylene
Low Contrast Module Matrix Ciba Geigy CB4 epoxy or equivalent
Low Contrast Rods Ciba Geigy CB4 epoxy (density adjusted to yield 6 ±0.5 HU difference) or equivalent
Tungsten Carbide Beads 0.011 in diameter grade 25 tungsten carbide beads
Line Pair Material 6061 Aluminum and Polystyrene
Steel Beads 1.00 mm grade 25 chrome steel balls
Intra-module Homogeneity. . . . The mean ROI values within any module, test objects excluded, can differ by no more than 2 HU
Intra-phantom Homogeneity, Modules 1, 3 & 4 The average CT number of a module must meet the requirements of 0 ±5 HU.