title: Computed tomography angiography for evaluation of pulmonary embolism in an experimental model and heartworm infested dogs.
abstract: This study was performed to characterize pulmonary embolism with computed tomography pulmonary angiography in experimental pulmonary embolism and heartworm infected dogs. In the experimental group, there were pulmonary changes after pulmonary embolism induction as follows: hypoattenuating round filling defects in pulmonary arteries, arterial dilations with straight and abrupt cut-off appearances in the pulmonary embolism regions, pulmonary infarctions, a cavity formation and spontaneous pneumothorax, and emboli migration. In the heartworm-infected group, three out of eight dogs developed pulmonary embolism, especially in the right caudal arteries. Arterial dilations with typical tortuosity were also identified, mainly in the right caudal arteries in five dogs. Computed tomography pulmonary angiography can be an important imaging modality in the diagnosis of pulmonary embolism and the evaluation of pulmonary arterial and parenchymal changes in dogs.
authors.affiliation: IDEXX Laboratories Co, Westbrook, ME.
authors.forename: Joohyun
authors.initials: J
authors.lastname: Jung
authors.forename: Jinhwa
authors.initials: J
authors.lastname: Chang
authors.forename: Sunkyoung
authors.initials: S
authors.lastname: Oh
authors.forename: Junghee
authors.initials: J
authors.lastname: Yoon
authors.forename: Mincheol
authors.initials: M
authors.lastname: Choi
mesh_terms: D000792:Angiography / Q000662:veterinary*; D000818:Animals; D004184:Dirofilariasis / Q000150:complications / Q000000981:diagnostic imaging*; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D008168:Lung / Q000098:blood supply / Q000000981:diagnostic imaging; D011655:Pulmonary Embolism / Q000150:complications / Q000000981:diagnostic imaging / Q000662:veterinary*; D014057:Tomography, X-Ray Computed / Q000662:veterinary*