WEK-CBCT3D Dental CBCT 3D Phantom
Mode：WEK-CBCT3D
Type:QA-Phantom
Contact： ken@hkmedqc.com
The WEK-CBCT3D Dental CBCT 3D Phantom (YY0795) is a phantom designed for the routine assessment of image quality in dental Cone Beam Computed Tomography (CBCT) systems. It serves as a dedicated performance testing phantom specifically for Cone Beam CT devices. This phantom complies with the requirements of the YY/T 0795-2022 and T/WSJD 8-2020 standards, as well as the quality control testing standards for Cone Beam X-ray Computed Tomography (CBCT) equipment. A single scan allows for the evaluation of multiple parameters, including spatial resolution, low-contrast resolution, image uniformity, voxel size, artifacts, geometric distortion, and distance measurement accuracy.
The main body of the phantom is constructed from PMMA. The phantom consists of a cylindrical structure with a diameter of 160 mm, containing seven internal chambers—each with a diameter of 35 mm. Each chamber can be individually loaded with cylindrical modules designed for specific tests; these modules can be combined in various configurations to meet diverse testing requirements.
The main body of the phantom is constructed from PMMA. The phantom consists of a cylindrical structure with a diameter of 160 mm, containing seven internal chambers—each with a diameter of 35 mm. Each chamber can be individually loaded with cylindrical modules designed for specific tests; these modules can be combined in various configurations to meet diverse testing requirements.
Applicable Standards:
YY/T 0795-2022; T/WSJD8-2020 *Specifications for Quality Control Testing of Oral Cone-Beam CT Systems*; WS XX00XX-XX0X *Quality Control Testing Standards for Cone-Beam X-ray Computed Tomography (CBCT) Equipment* (WS Specialized Standard; pending imminent implementation).
Technical Parameters of the Phantom (Compliant with YY/T 0795-2022 *Specific Technical Conditions for Oral and Maxillofacial Cone-Beam Computed Tomography Equipment*):
1) The base material is PMMA (Polymethyl Methacrylate), with a diameter of 160 mm.
2) The test modules feature a modular, separable design, covering parameters such as noise uniformity, geometric distortion, spatial resolution, and contrast resolution.
3) The Noise Uniformity Module consists of homogeneous PMMA material; the lowest section features a density of 1.2 ± 1.0%.
4) The Geometric Distortion Module contains over 150 circular holes, each with a diameter of 2.0 mm and a depth of 3.0 mm.
5) The Spatial Resolution Module incorporates features for assessing both the Line Spread Function (LSF) and the Point Spread Function (PSF).
6) Spatial resolution in the X and Y directions is achievable at: (1.0, 1.3, 1.55, 1.7, 2.0, 2.5, 2.8, 3.5, 4.0) LP/mm.
7) Spatial resolution in the Z1 direction is achievable at: (1.0, 1.3, 1.55, 1.7, 2.0) LP/mm.
8) Spatial resolution in the Z2 direction is achievable at: (2.0, 2.5, 2.8, 3.5, 4.0) LP/mm.
9) The Low-Contrast Module (featuring Aluminum, PTFE, DELRIN, LDPE, and Air inserts) includes diameters of: (1.0, 2.0, 3.0, 4.0, 5.0) mm. 10) Pixel Intensity/HU Value Measurement Module: Materials: Aluminum, PTFE, Delrin, LDPE, Air, and Epoxy, embedded within a PMMA base.
11) Metal Artifact Module: Three 5.0 mm diameter titanium rods embedded in a PMMA base for the verification of metal artifacts.
Product Configuration: Main Phantom Body, 14 Functional Modules, 29 Blank Modules, and a Storage Case.
SAG: WEK-CBCT3D Dental CBCT 3D Phantom,YY0795 CBCT 3D Phantom — Dental CBCT 3D Phantom