MODEL 464 ACR CT ACCREDITATION PHANTOM

ACR CT Accreditation Phantom Model 464
The Gammex 464 ACR CT Phantom 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, Gammex 464-STND (shown above with the phantom) provides stability, makes alignment easier and features built-in leveling devices.  The optional analytical software, Gammex 464-ACTS provides automated data analysis for the ACR acrreditation CT Phantom 464. View Demo of 464-ACTS
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.