Get MDCT and 3D Workstations A Practical How-To Guide and PDF

By Scott A. Lipson

ISBN-10: 1441920668

ISBN-13: 9781441920669

Unique emphasis on instructing the CT technologists getting began in MDCT

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Additional info for MDCT and 3D Workstations A Practical How-To Guide and Teaching File

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One of the main advantages of reviewing images on a workstation is the flexibility to instantly create and review MPRs in any plane. Oblique and double oblique reconstructions can be helpful in many types of cases. Some examples include extremity scans, spine, cardiac, facial bones/sinuses, and even body cases to look at specific structures like the common bile duct, ureters, pancreas etc. 1). Surface Rendering Surface rendering (SR), also known as surface-shaded display, is a 3D rendering method that has been in use for many years.

Existing algorithms that assumed the xray source, imaging range of interest (ROI), and the detector were all in the same plane were no longer completely valid. Newer algorithms that accounted for the fact that the imaging ROI actually projected onto multiple detector rows in different planes were needed. Trying to reconstruct axial images without taking these various view angles (cone beam) into account produced significant artifacts. In order to maintain image quality, various cone beam reconstruction algorithms were developed.

9. Fleischmann D, Rubin GD, Bankier AA, Hittmair K. Improved uniformity of aortic enhancement with customized contrast medium injection protocols at CT angiography. Radiology 2000;214:363–371. 10. Fleischmann D. High-concentration contrast media in MDCT angiography: principles and rationale. Eur Radiol 2003 Nov;13(suppl 3):N39–N43. 11. Frush DP, Spencer EB, Donnelly LF, Zheng JY, DeLong DM, Bisset GS III. Optimizing contrast-enhanced abdominal CT in infants and children using bolus tracking. Am J Roentgenol 1999 Apr;172(4):1007–1013.

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MDCT and 3D Workstations A Practical How-To Guide and Teaching File by Scott A. Lipson

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