The purpose of the study was the evaluation of low-dose spiral CT in the detection and assessment of contours of pulmonary nodules. In a prospective investigation 71 consecutive chest CT examinations were acquired both at 30 and 200 mA. Films were interpreted independently by two radiologists. Acc...
目的:研究低剂量CT(low-dose CT,LDCT)在亚实性肺腺癌结节影像分期中的应用效果.方法:抽取43例亚实性肺腺癌患者为研究对象(2016年12月至2020年1月),所有患者均经病理检查明确为亚实性肺腺癌,予以CT诊断,进行结节影像分期.观察结节CT分期与病理分期情况.结果:CT诊断显示,GGO 44.19%,磨玻璃影25.58%,模糊结节30.23...
网络低剂量电脑断层;低剂量电脑断层侦测仪 网络释义
摘要: 目的:研究低剂量CT(low-dose CT,LDCT)在亚实性肺腺癌结节影像分期中的应用效果.方法:抽取43例亚实性肺腺癌患者为研究对象(2016年12月至2020年1月),所有患者均经病理检查明确为亚实性肺腺癌,予以CT诊断,进行结节影像分期.观察结节CT分期与病理分期情况.结果:CT诊断显示,GGO 44.19%... 查看全部>> ...
Stones: Low-dose dual-energy CT.Stones: Low-dose dual-energy CTNature Reviews Urology 8, 7 (2011). doi:10.1038/nrurol.2010.219Author: Sarah PaytonDual-energy CT, which utilizes two sources of radiation at different vo ...doi:10.1038/nrurol.2010.219PaytonSarahNature Reviews Urology...
Poster: "ECR 2013 / C-1104 / Optimal low-dose levels in screening chest computed-tomography (CT) for minimal patient radiation and unimpaired detection of lung nodules with and without computer assisted detection (CAD)" by: "A. Christe1, Z. Szucs-Farkas2, A. Huber1, P. Steiger1, J. ...
The x-ray exposure to patients has become a major concern in computed tomography (CT) and minimizing the radiation exposure has been one of the major efforts in the CT field. Due to plenty high-attenuation tissues in the human chest, under low-dose scan protocols, thoracic low-dose CT (LD...
Chest CT 1. Introduction Low dose CT examinations are currently employed to detect lung nodules and to find treatable lung cancer cases [1], [2], [3], [4], [5], [6], [7], [8]. Low dose CT is much more effective as a screening process than chest X-ray, but the drawback is...
The continuous development and extensive use of computed tomography (CT) in medical practice has raised a public concern over the associated radiation dose to the patient. Reducing the radiation dose may lead to increased noise and artifacts, which can adversely affect the radiologists' judgment and...
Spectral computed tomography (CT) has a great superiority in lesion detection, tissue characterization and material decomposition. To further extend its potential clinical applications, in this work, we propose an improved tensor dictionary learning method for low dose spectral CT reconstruction with a ...