Occipitocervical Dislocation

2018 ◽  
pp. 21-30
Author(s):  
Alexander B. Dru ◽  
Daniel J. Hoh
Keyword(s):  
Computed Tomography ◽  
Decision Making ◽  
Three Dimensional ◽  
Postoperative Management ◽  
Dimensional Reconstruction ◽  
Diagnosis And Classification ◽  
X Ray Computed ◽  
Board Review ◽  
Tomography Scan

This chapter covers the presentation, diagnosis, operative decision-making, surgical procedure, postoperative management, and evidence/outcomes of patients who have sustained atlanto-occipital dislocation (AOD). The format of the chapter walks the reader through the case in a logical manner with each section containing questions and oral board review pearls that are directly answered in the text. Each section has a combination of radiographic (x-ray, computed tomography scan, and three-dimensional reconstruction) and illustrative imaging to aid in the diagnosis and classification of AOD. This chapter is designed to provide residents or board-eligible neurosurgeons with an up-to-date review of this condition for both written and oral board certification.

scholarly journals Three-dimensional reconstruction of human nipple using refraction-contrast x-ray computed Tomography

2019 ◽  
Author(s):  
Naoki Sunaguchi ◽  
Daisuke Shimao ◽  
Shu Ichihara ◽  
Kensaku Mori ◽  
Tetsuya Yuasa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Three Dimensional Reconstruction ◽  
X Ray ◽  
Dimensional Reconstruction ◽  
X Ray Computed

scholarly journals Three‐dimensional X‐ray‐computed tomography of 3300‐ to 6000‐year‐old Citrullus seeds from Libya and Egypt compared to extant seeds throws doubts on species assignments

2021 ◽  
Author(s):  
Katherine A. Wolcott ◽  
Guillaume Chomicki ◽  
Yannick M. Staedler ◽  
Krystyna Wasylikowa ◽  
Mark Nesbitt ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
X Ray ◽  
X Ray Computed

Visualizing Fluid Flows With X-Rays

2007 ◽  
Author(s):  
Theodore J. Heindel ◽  
Terrence C. Jensen ◽  
Joseph N. Gray
Keyword(s):  
Computed Tomography ◽  
Flow Visualization ◽  
Three Dimensional ◽  
Fluid Flows ◽  
X Rays ◽  
Radiographic Images ◽  
Optical Access ◽  
X Ray ◽  
X Ray Computed ◽  
Density Map

There are several methods available to visualize fluid flows when one has optical access. However, when optical access is limited to near the boundaries or not available at all, alternative visualization methods are required. This paper will describe flow visualization using an X-ray system that is capable of digital X-ray radiography, digital X-ray stereography, and digital X-ray computed tomography (CT). The unique X-ray flow visualization facility will be briefly described, and then flow visualization of various systems will be shown. Radiographs provide a two-dimensional density map of a three dimensional process or object. Radiographic images of various multiphase flows will be presented. When two X-ray sources and detectors simultaneously acquire images of the same process or object from different orientations, stereographic imaging can be completed; this type of imaging will be demonstrated by trickling water through packed columns and by absorbing water in a porous medium. Finally, local time-averaged phase distributions can be determined from X-ray computed tomography (CT) imaging, and this will be shown by comparing CT images from two different gas-liquid sparged columns.

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