Lynch Katherine C, Oliveira Cintia R, Matheson Jodi S, Mitchell Mark A, O'Brien Robert T
Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA.
Vet Radiol Ultrasound. 2012 Jan-Feb;53(1):38-43. doi: 10.1111/j.1740-8261.2011.01854.x.
Forty-seven patients with a known history of thoracic trauma or clinical suspicion of pneumothorax were selected for thoracic imaging. The patient population was composed of 42 dogs and five cats. Standard vertical beam (VB) left and right lateral and ventrodorsal/dorsoventral (VD/DV) projections were obtained for each patient, and at least one horizontal beam (HB) projection (VD projection made in lateral recumbency). A total of 240 images were reviewed. Subjective assessment for the presence and degree of pneumothorax and pleural effusion was made more confidently with HB projections. Pneumothorax was identified in at least one projection in 26 patients (26 dogs) and pleural effusion in 21 patients (19 dogs and two cats). Pneumothorax and pleural effusion were present concurrently in 17 dogs. Pneumothorax and pleural effusion were graded for each image as absent, mild, moderate, or severe. Right (P < 0.001) and left (P < 0.05) lateral HB VD projections and the standard VB left lateral projection (P < 0.05) were significantly more likely to detect and grade pneumothorax severely than the VB VD/DV views. The right lateral HB projection had the highest rate of detection and gradation of severity for pneumothorax compared with other views. VD/DV projections had the lowest sensitivity for detection of the pneumothorax and gradation of severity for pneumothorax and pleural effusion. No significant difference in diagnosis (P = 0.9149) and grade (P = 0.7757) of pleural effusion were seen between views, although the left lateral HB had both the highest rate of detection and grade of severity.
47例有胸部创伤史或临床怀疑气胸的患者被选来进行胸部成像检查。患者群体包括42只狗和5只猫。为每位患者拍摄了标准垂直投照（VB）的左右侧位以及腹背位/背腹位（VD/DV）影像，并且至少拍摄了一张水平投照（HB）影像（侧卧位时的VD投照）。共审查了240张影像。通过HB投照能更可靠地对气胸和胸腔积液的存在及程度进行主观评估。26例患者（26只狗）在至少一张投照影像中发现气胸，21例患者（19只狗和2只猫）发现胸腔积液。17只狗同时存在气胸和胸腔积液。每张影像的气胸和胸腔积液均按照无、轻度、中度或重度进行分级。右侧（P<0.001）和左侧（P<0.05）水平投照HB的VD位影像以及标准VB左侧位影像（P<0.05）比VB的VD/DV位影像更有可能检测到严重气胸并进行分级。与其他投照相比，右侧水平投照HB影像对气胸的检测率和严重程度分级率最高。VD/DV位影像对气胸的检测以及气胸和胸腔积液严重程度分级的敏感性最低。各投照对胸腔积液的诊断（P=0.9149）和分级（P=0.7757）无显著差异，尽管左侧水平投照HB的检测率和严重程度分级均最高。
