Computed Tomography (Ct) of the Liver of the Dog by a Six‐generation CT Scanner and Intravenous Contrast Medium
Identifieur interne : 001274 ( Istex/Curation ); précédent : 001273; suivant : 001275Computed Tomography (Ct) of the Liver of the Dog by a Six‐generation CT Scanner and Intravenous Contrast Medium
Auteurs : M. A. Teixeira [Brésil] ; G. Ramírez-Zarzosa [Espagne] ; A. Arencibia [Espagne] ; L. Cardoso [Brésil] ; M. D. Ayala [Espagne] ; F. Gil [Espagne] ; A. Agut [Espagne] ; M. A. Rivero [Espagne]Source :
- Anatomia, Histologia, Embryologia [ 0340-2096 ] ; 2005-12.
Abstract
By computed tomography the liver has an intermediate degree of attenuation, with a CT value (HU) between 70 and 75. However, this number may vary according to the generation of the apparatus, the use of contrasts medium, the efficiency of the detector, etc. The purpose of the present work was to evaluate the liver of the dog and related structures by means of a six‐generation spiral CT scanner (Toshiba Ex Vision [[Au: please provide manufacturers details for ‘Toshiba Ex Vision’: city, state code (if USA) and Country]]), and the previous injection of intravenous contrast medium via cephalic vein. Four half‐breed mature dogs (4–6 years, 15–20 kg) were used, two males and two females. The dogs were anaesthetized and kept over a stretcher in sternal recumbency. To evaluate the liver two different CT windows with different window width and window level were applied: soft tissue window (WW 652; WL ‐34) and mediastinal‐vascular window (WW 352; WL 220). The CT images obtained allowed an excellent resolution at the level of the hepatic lobules, the gall bladder, the porta vein, the hepatic artery, the caudal cava vein, etc. The attenuation shades of these structures were very similar in the two used windows, however a better contrast was obtained with the soft tissue window.
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DOI: 10.1111/j.1439-0264.2005.00669_118.x
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However, this number may vary according to the generation of the apparatus, the use of contrasts medium, the efficiency of the detector, etc. The purpose of the present work was to evaluate the liver of the dog and related structures by means of a six‐generation spiral CT scanner (Toshiba Ex Vision [[Au: please provide manufacturers details for ‘Toshiba Ex Vision’: city, state code (if USA) and Country]]), and the previous injection of intravenous contrast medium via cephalic vein. Four half‐breed mature dogs (4–6 years, 15–20 kg) were used, two males and two females. The dogs were anaesthetized and kept over a stretcher in sternal recumbency. To evaluate the liver two different CT windows with different window width and window level were applied: soft tissue window (WW 652; WL ‐34) and mediastinal‐vascular window (WW 352; WL 220). The CT images obtained allowed an excellent resolution at the level of the hepatic lobules, the gall bladder, the porta vein, the hepatic artery, the caudal cava vein, etc. The attenuation shades of these structures were very similar in the two used windows, however a better contrast was obtained with the soft tissue window.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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