Model 062M, 062MA, 062MQA
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CBCT Electron Density & Image Quality Phantom System Model 062M, 062MA & 062MQA MINIMIZE DOSE • INCREASE IMAGE QUALITY • ENHANCE OUTCOMES PRODUCT GUIDE 2428 Almeda Avenue Suite 316 • Norfolk, Virginia 23513 • USA Tel: 800.617.1177 • 757.855.2765 • Fax: 757.857.0523 WWW.CIRSINC.COM Tissue Simulation & Phantom Technology

Overview The CBCT Electron Density & Image Quality Phantom System integrates three phantoms in one highly functional and ergonomic package. The phantom system can be configured as: CAPABILITIES • Perform tests per AAPM TG-1 and TG-142 • Obtain maximum CTU information from a single scan • Calibrate with optional high-density references • Perform dose verification with ionization chambers • Evaluate effects of beam hardening on HU values & Image quality • Accommodate ion chambers for dose measurements and validation of heterogeneity corrections Model 062M Electron Density Phantom Model 062MA...

Standard System Components Electron Density Phantom Head Insert Electron Density Phantom Body w/feet CBCT Electron Density Phantom 062MA-37 Annulus Insert (100 mm thick) CBCT Electron Density Phantom 062MA-34 Bolus Section (37.5 mm thick) Electron Density Phantom Plugs CBCT Electron Density Phantom 062MA-36 Annulus (100 mm thick) CBCT Electron Density Phantom 062MA-33 Bolus Section (12.5 mm thick) CBCT Electron Density Phantom 062MA-24 Bolus Section (50 mm thick) ION Chamber Insert Background Insert CBCT Image Quality Phantom CBCT Image Quality Phantom 062MQA-30 Holder & Stand

CBCT ELECTRON DENSITY AND IMAGE QUALITY PHANTOM ELECTRON DENSITY PHANTOM CBCT ELECTRON DENSITY PHANTOM IMAGE QUALITY PHANTOM Model 062M Model 062MA Model 062QA-35

Electron Density Phantom MODEL 062M The Electron Density Phantom, Model 062M, is used to account for tissue heterogeneity in radiotherapy treatment planning. The phantom is used with a CT scanner to provide precise correlation between electron density of tissues and their CT number in Houndsfield units (HU). The Model 062M consists of two nested disks made from Plastic Water®-LR. They can represent both head and abdomen configurations. Nine different tissue equivalent electron density plugs can be positioned at 17 different locations within the scan field. Included is a water vial plug that...

CBCT Electron Density Phantom MODEL 062MA The Cone Beam (CBCT) Electron Density Phantom is an extended version of the CIRS Model 062M Electron Density Phantom, specifically designed for Cone Beam CT Imaging systems. Preliminary data shows that there may be differences between the HU readings for Diagnostic CT and Cone Beam CT. The geometry of the Cone Beam CT requires additional material and suggests that off-central axis measurements should be taken. The phantom is a valuable tool for CT number to electron density calibration in volumetric imaging. Reliable CT calibration curves help...

CBCT Image Quality Phantom MODEL 062QA-35 The purpose of image quality measurements is to quantify various image quality indicators for 3D images taken from a selection of image acquisition and reconstruction settings representative of clinical practices. Assessment of the image quality parameters over time can show trends in variation of said parameters helping the user to decide whether or not recalibrations of the imaging system are necessary. The Image Quality Phantom (062MQA-50) is composed of four layers: Uniformity, CT number Linearity/Slice Thickness, Low Contrast/Magnification, ans...

SPATIAL RESOLUTION LAYER The Low Contrast Layer assesses the system's ability to detect small differences in contrast. It contains three sets of low contrast rods with linear attenuation differences of 0.5%, 1% and 2% relative to the background material. The diameters of the low contrast rods were chosen so as to provide a 0.5 ratio between two adjacent rods by cross section and volume. The Spatial Resolution Layer is designed to evaluate the spatial resolution of IGRT systems. Line pair patterns from 1 lp/cm to 16 lp/cm are embedded in the background. In order to minimize artifacts, each...

CBCT Electron Density & Image Quality Phantom MODEL 062MQA The Model 062MQA phantom provides a comprehensive tool that can be used for both electron density calibration and image quality assessment of Cone Beam CT systems integrated in radiation therapy devices. The electron calibration function of the phantom enhances the outcome of adaptive radiation therapy while the image quality features address the fine balance between optimizing image quality and minimizing radiation dose. The 062MQA CBCT Electron Density & Image Quality Phantom incorporates 3 phantoms: 1. Electron Density Phantom...

Optional Accessories MODEL 062M, 062MA & O62MQA TABLE 5 PART NO. ELECTRON DENSITY, x 1023 electrons/cc 800 mg/cc HA in Water Equivalent - Core Insert Titanium Rod Core Insert Distance Marker Insert Water Equivalent Insert 1000 mg/cc HA in Water Equivalent - Core Insert 1250 mg/cc HA in Water Equivalent - Core Insert ICRU Cortical Bone Equivalent Core Insert*** 1500 mg/cc HA in Water Equivalent - Core Insert 1750 mg/cc HA in Water Equivalent - Core Insert Solid Dense Bone (1000 mg/cc HA) Equivalent Electron Density Plug Solid Dense Bone (1500 mg/cc HA) Equivalent Electron Density Plug Solid...

Positioning Options CBCT ELECTRON DENSITY & IMAGE QUALITY PHANTOM SYSTEM SETUPS The CBCT Electron Density & Image Quality Phantom System allows users to customize the phantom setup according to their specific testing needs. Images below show different positioning arrangements of sections, which allow for off-axis Dosimetry measurements, Electron Density off-axis measurements, and axial positioning of each layer of the CBCT Image Quality Phantom (062MQA-50). The illustrations below demonstate configurations with the 062MQA-50 inside the bolus (additional cofigurations shown on pages 14 and...

Positioning Options DOSIMETRY ARRANGEMENTS Both 062MA CBCT Electron Density Phantom and 062MQA CBCT Electron Density & Image Quality Phantom are designed to allow for dosimetry measurements in the central location of the Electron Density Head section. Dosimetry measurements can also be taken from any location in the 062M by exchanging the Ion Chamber insert with any of the Electron Density plugs, as shown in the image on the lower right. This configuration will only work when the CBCT Electron Density Body with Head Insert is positioned at one end of the phantom. When the Ion Chamber insert...