Scanner and kVp dependence of measured CT numbers in the ACR CT phantom
نویسندگان
چکیده
منابع مشابه
Scanner and kVp dependence of measured CT numbers in the ACR CT phantom
Quality control testing of CT scanners in our region includes a measurement of CT numbers in the American College of Radiology (ACR) CT phantom using a standardized protocol. CT number values are clinically relevant in determining the composition of various tissues in the body. Accuracy is important in the characterization of tumors, assessment of coronary calcium, and identification of urinary...
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Introduction: One of the most valuable goals of phantoms, replacing with human goals in the field of research and quality control of diagnostic X-ray systems. There are various algorithms and methods for obtaining Homogeneity and CT number linearity for CT scan device. One of the most famous of these methods, the method is to use a uniform and homogeneous environment to comput...
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INTRODUCTION For accurate dose calculations, it is necessary to provide a correct relationship between the CT numbers and electron density in radiotherapy treatment planning systems (TPSs). The purpose of this study was to investigate the energy dependence of measured CT numbers on substituted materials used for CT number calibration of radiotherapy TPSs and the resulting errors in the treatmen...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2013
ISSN: 1526-9914
DOI: 10.1120/jacmp.v14i6.4417