Inter- and intrascanner variability of pulmonary nodule volumetry on low-dose 64-row CT: an anthropomorphic phantom study
نویسندگان
چکیده
منابع مشابه
Radiation dose evaluation in tomosynthesis and C-arm cone-beam CT examinations with an anthropomorphic phantom.
PURPOSE The objective of this study was to evaluate organ dose and the effective dose to patients undergoing tomosynthesis (TS) and C-arm cone-beam computed tomography (CBCT) examinations and to compare the doses to those in multidetector CT (MDCT) scans. METHODS Patient doses were measured with small sized silicon-photodiode dosimeters, 48 in number, which were implanted at various tissue an...
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Lung nodule measurements made with CT imaging are used in clinical practice to assess size changes estimated from serial scans obtained over time to predict the likelihood of malignancy and to monitor the tumor response to treatment. 2 Size measurements need to be accurate and consistent to enable the assessment of nodule changes in a short time interval. Th e precision and accuracy of volume m...
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15 صفحه اولA resource for the assessment of lung nodule size estimation methods: database of thoracic CT scans of an anthropomorphic phantom◊
A number of interrelated factors can affect the precision and accuracy of lung nodule size estimation. To quantify the effect of these factors, we have been conducting phantom CT studies using an anthropomorphic thoracic phantom containing a vasculature insert to which synthetic nodules were inserted or attached. Ten repeat scans were acquired on different multi-detector scanners, using several...
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ژورنال
عنوان ژورنال: The British Journal of Radiology
سال: 2013
ISSN: 0007-1285,1748-880X
DOI: 10.1259/bjr.20130160