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Shenzhen Zhongyukang Technology Co., Ltd
CBCT Performance Model
NegotiableUpdate on 02/06
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Overview
Cone Beam CT, also known as Cone Beam Computed Tomography (CBCT), is a technology that uses an X-ray source to emit a cone beam and combines it with a flat panel detector to obtain three-dimensional images. It is widely used in fields such as dentistry, orthopedics, and radiotherapy localization. Compared with traditional spiral CT, it has the characteristics of fast scanning speed, high spatial resolution, and low radiation dose. CBCT Performance Model
Product Details
Cone Beam CT, also known as Cone Beam Computed Tomography (CBCT), is a technology that uses an X-ray source to emit a cone beam and combines it with a flat panel detector to obtain three-dimensional images. It is widely used in fields such as dentistry, orthopedics, and radiotherapy localization. Compared with traditional spiral CT, it has the characteristics of fast scanning speed, high spatial resolution, and low radiation dose.
The modular design of the Corgi model allows for the configuration of many cone beam CT applications. The model consists of modules with a diameter of 135 millimeters, each module having a thickness of 40 millimeters. The testing module includes test objects with multi axis high resolution, sensitivity, and cone beam artifacts. This model can be configured with one testing module located near the center of the scanner X-ray beam and another testing module located at the edge to better understand changes within the scanning volume. Additional modules are used for uniformity and dose measurement.
Corgi phantomThe English name is: Corgi Phantom
The Corgi phantom is designed specifically for evaluating cone beam imaging systems.
This model can be easily configured for scanners of different sizes. The assembly rod allows for Z-axis length configurations of 12 centimeters and 20 centimeters. All modules contain four holes, one in the center and three in the periphery, used for assembling rods or dose measurement.
The standard CGI014 configuration evaluates the image quality of two imaging planes simultaneously through two CGI006 image quality unit segments. Placing the unit segments at the center and edge of the cone beam can obtain relevant information on the overall performance within the scanning area. CGI014 can be configured as a combination of five unit segments or three unit segments.
The CGI025 Corgi dental phantom can be configured as a combination of three unit segments or two unit segments, and includes one CGI006 image quality unit segment.
The optional ring kit can expand the diameter of the Corgi phantom to 16 centimeters or 20 centimeters. The 20 centimeter circular kit can be paired with elliptical and circular Catthan ® Use in conjunction with the body ring kit.
Cone Beam CT phantom, Corgi Cone Beam CT phantom image quality unit segments are used to evaluate the following:
Light sensitivity measurement
High resolution
° axis plane
° voxel resolution
Cone beam artifact
Distortion
° axis plane
Z-axis direction
Photosensitive measurement
The Corgi phantom contains five photosensitive measurement plugins. The diameter of the plug-in rod is 20 millimeters, and one end is hemispherical. The plug-in is made of polystyrene, nylon, polycarbonate, polyoxymethylene copolymer, and polyvinyl chloride.
high resolution
The high-resolution measurement values are calculated from the photosensitive measuring rod using the edge spread function. By setting edges in the x-y plane or rotating the edges 45 ° to obtain x-y-z voxel resolution, the in-plane resolution and voxel resolution can be evaluated.
Cone beam artifact
The cone beam artifact test consists of two polytetrafluoroethylene (PTFE) disks, each with a diameter of 25 millimeters and a thickness of 1 millimeter, with a distance of 1.5 millimeters between the two disks. When the phantom moves from the center position of the cone beam to the edge position, the divergence of the beam will cause these disks to appear blurry in the Z-axis direction. This interference will be evaluated through mathematical methods in Sm á ri analysis.
distortion
To measure distortions in the x, y, and z directions, six conical cavities were precisely machined at the top and bottom of the image quality module.
Uniformity and noise
CBCT Performance Model
