Study on Cone Beam X-Ray Scattering Correction Applied to Bone Densitometer
نویسندگان
چکیده
منابع مشابه
X-Ray Scatter Correction on Soft Tissue Images for Portable Cone Beam CT.
Soft tissue images from portable cone beam computed tomography (CBCT) scanners can be used for diagnosis and detection of tumor, cancer, intracerebral hemorrhage, and so forth. Due to large field of view, X-ray scattering which is the main cause of artifacts degrades image quality, such as cupping artifacts, CT number inaccuracy, and low contrast, especially on soft tissue images. In this work,...
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With the extensive application of industrial computed tomography in the field of nondestructive testing, how to improve the quality of the reconstructed image is receiving more and more concern. It is well known that in the existing cone-beam filtered backprojection reconstruction algorithms the cone angle is controlled within a narrow range. The reason of this limitation is the incompleteness ...
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Objective: A commercially available dual energy X-ray absorptiometry scanner normally provides more than 1 scan mode. The differences between scan modes affect scan time, received radiation dose, and quality of the scan image. A phantom study was performed to evaluate the performance of different scan modes for anteriorposterior spine scan. Patients and Methods: To measure the entrance skin exp...
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ژورنال
عنوان ژورنال: Hans Journal of Biomedicine
سال: 2018
ISSN: 2161-8976,2161-8984
DOI: 10.12677/hjbm.2018.82005