Calcification density on computed tomography depending on scanning parameters: phantom study
نویسندگان
چکیده
منابع مشابه
Intracranial Carotid Calcification on Cranial Computed Tomography
Received April 27, 2015; final revision received July 9, 2015; accepted July 9, 2015. From the Department of Clinical Radiology, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom (D.S., U.S.Z., M.-L.G.); Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom (F.C., C.S., R.S., J.W.); and Brain Research Imaging Centre, Scottish Imaging Network—A Platform for...
متن کاملA low-cost density reference phantom for computed tomography.
The authors characterized a commercially available foam composed of polyurethane and polyisocyanurate which is marketed for modeling parts in the aircraft, automotive, and related industries. The authors found that the foam may be suitable for use as a density reference standard in the range below -400 Hounsfield units. This range is coincident with the density of lung tissue. The foam may be h...
متن کاملDevelopment of a Liver Phantom Based on Computed Tomography Images for Dosimetric Purpose
Introduction: The present study was conducted with the aim of designing a liver phantom for dosimetry. To benchmark the results obtained by the developed liver phantom, another method was applied for the dosimetry of a real liver tissue using imaging. Materials and Methods: For the purpose of the study, a real liver tissue was converted into a phantom based on thegram-molecular weight of the co...
متن کاملLow-dose computed tomography of the lumbar spine: a phantom study on imaging parameters and image quality.
BACKGROUND Lumbar spine radiography has limited diagnostic value but low radiation dose compared with computed tomography (CT). The average effective radiation dose from lumbar spine radiography is about 1.1 mSv. Low-dose lumbar spine CT may be an alternative to increase the diagnostic value at low radiation dose, around 1 mSv. PURPOSE To determine the optimal settings for low-dose lumbar spi...
متن کاملthe effect of traffic density on the accident externality from driving the case study of tehran
در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Medical Visualization
سال: 2020
ISSN: 2408-9516,1607-0763
DOI: 10.24835/1607-0763-2020-4-119-132