Thoracic radiography as a refinement methodology for the study of H1N1 influenza in cynomologus macaques (Macaca fascicularis).
- 1 October 2010
- journal article
- Vol. 60 (5), 389-95
Abstract
Recent advances in the technology associated with digital radiography have created new opportunities for biomedical research applications. Here we evaluated the use of thoracic radiography as a noninvasive refinement methodology for the cynomologus macaque (Macaca fascicularis) model of H1N1 infection. Thoracic radiographic evaluations of macaques infected with any of 3 strains of emerging H1N1 swine-associated influenza virus isolated during the recent pandemic were compared with those of macaques infected with the currently circulating Kawasaki strain of H1N1 influenza. Ventrodorsal, right, and left lateral thoracic radiographs were obtained at days 0, 1, 6, 8, 11, and 14 after infection. A board-certified veterinary radiologist who was blinded to the study design evaluated the images. Numeric scores of extent and severity of lung involvement assigned to each radiograph were compared and demonstrated a significant and substantial difference among groups. The radiographic evaluation allowed for noninvasive assessment of lung involvement, disease onset, progression, and resolution of radiographic changes associated with H1N1 influenza infection.Keywords
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