refraction computed tomographysynchrotron radiationIn the first part of this article a more general DEI equation was derived using simple concepts. Not only does the new DEI equation explain all the problems that can be done by the DEI equation proposed by Chapman, but also explains the problem ...
Note 8 X-ray Computed Tomography: Principle and Recent Advancements Acquisition Speedup • Scan time/slice for consecutive volume coverage has reduced by a factor of 15,000 over the last 30+ years. • This is a reduction of factor 1.36/year. Data acquisition speed doubles every 2.2 years!
Micro-computed tomography(Micro-CT) is a new three-dimension high-resolution imaging device based on X-ray imaging principle. 显微CT是一种新型的采用X射线成像原理进行高分辨三维成像的设备。 www.dictall.com 5. A new mathematic model of imaging in perfect optical system was established based on th...
computed tomography, ovaryovarian massBackground Accumulating evidence, outlined in this review, at last provides some elucidation of the orgin of gastrointestinal epithelial tumours. Methods New techniques, such as following the process of crypt or gastric gland purification following mutation in genes ...
Computed tomography CTC: Common toxicity criteria DC: Dendritic cells DCR: Disease control rate DFS: Disease free survival DM: Ministerial Decree DTH: Delayed type hypersensitivity ECOG: (Eastern Cooperative Oncology Group, ECOG Scale) Performance status GCP: Good Clinical Practice GM-CSF...
aThe goal of this study was to look at mandibular cortical bone in live patients using cone-beam computed tomography (CBCT) to determine differences in cortical plate thicknesses and mandibular cross-sectional height and width in patients with different vertical facial dimensions. 这项研究的目标是看...
What we call functions are fast processes of short duration. Imaging procedures, such as computerized tomography (CT) and magnetic resonance imaging (MRI), reveal structure; positron emission tomography (PET), single photon emission computed tomography ( SPECT ) and optical imaging reveal function ...
We report the case of a 37-year-old man with chronic renal insufficiency, on hemodialysis, with no respiratory symptoms but whose chest radiograph showed parenchymal consolidation in the middle and upper lung fields. High resolution computed tomography showed a high-attenuating diffuse alveolar pattern...
When using waveform tomography to perform high-resolution imaging of a medium, it is vital to calculate the sensitivity in order to describe how well a model fits a given set of data and how the sensitivity changes with the spatial distribution of the heterogeneities. The traditional principle be...
Open Path Fourier Transform Infrared Spectroscopy (OP-FTIR) combined with computed tomography (CT) is an innovative technique that can be used for occupational and environmental air monitoring. 开路傅立叶变换红外光谱(OP-FTIR),结合计算机层析(CT)技术,可以用于重构泄漏或发散化学物质浓度的分布,是大气环境...