IngentaConnect Computed Tomography of the Lungs of the Dog by a Six-generation C...

Authors: Cardoso, L.¹; Gil, F.²; Teixeira, M. A.¹; López-Albors, O.²; Latorre, R.²; Arencibia, A.³; Rivero, M. A.³; Vázquez, J. M.²

Source: Anatomia, Histologia, Embryologia, Volume 34, Supplement 1, December 2005 , pp. 10-10(1)

Publisher: Blackwell Publishing

Abstract:

Computed tomography (CT) is a modern technique of image diagnosis particularly recommended in human medicine to evaluate the existence of pulmonary pathological changes such as neoplasms, metastasis, interstitial infiltrates, etc. In veterinary medicine, however, few anatomical and clinical CT studies in the dog have used apparatus of the latest generation, including injection of intravenous contrast and application of regional specific CT windows with different window width (WW) and window level (WL) to evaluate the lungs, the pulmonary vessels and the bronchial structures. This methodology allows the obtaining of clear CT images with high capacity of tissue discrimination and different shades of attenuation. In this work we have planned a tomographic study of the lungs of the dog by using a six-generation spiral CT scanner (Toshiba Ex Vision), belonging to the private Medical Institute of Radiology ‘Irion’ of Porto Alegre, Brazil. Four mixed-breed mature dogs (4–6 years, 15–20 kg) were used, two males and two females. The dogs were anaesthetized and kept in a maximum inspiration when obtaining the images. Dogs were placed in a stretcher in a ventral or sternal recumbency. Previously, the contrast urografin® was injected in the cephalic vein. Different CT windows were applied in order to increase the quality of the images: pulmonary window (WW 928; WL -680), high-resolution pulmonary window (WW 1085; WL -750), and soft tissue window (WW 652; WL -34). The use of intravenous contrast, different CT windows and a modern CT apparatus produced excellent images of the pulmonary parenchyma, the pleural cavity, the pulmonary veins, the lobular rami of the pulmonary artery and the lobular bronchi.

Document Type: Research article

DOI: 10.1111/j.1439-0264.2005.00669_22.x

Affiliations: 1: Facultad de Veterinaria de Canoas (ULBRA). Rio Grande do Sul. Brasil 2: Facultad de Veterinaria de Murcia. Campus de Espinardo, 30100 Murcia. España 3: Facultad de Veterinaria de Las Palmas de Gran Canaria. Trasmontaña, Arucas. 35416 Las Palmas de G.C., España

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Computed Tomography of the Lungs of the Dog by a Six-generation CT Scanner, Intravenous Contrast Medium and Different Windows