Reconstructed 4-chamber views compared with axial imaging for assessment of right ventricular enlargement on CT pulmonary angiograms

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• 作者：Paul D. Stein ; Fadi Matta ; Abdo Y. Yaekoub ; Lawrence R. Goodman ; H. Dirk Sostman ; John G. Weg ; Charles A. Hales ; Russell D. Hull ; Kenneth V. Leeper and Afzal Beemath ; et al.
• 关键词：Pulmonary embolism ; Venous thromboembolism ; Right ventricular enlargement ; CT pulmonary angiography
• 刊名：Journal of Thrombosis and Thrombolysis
• 出版年：2009
• 出版时间：October, 2009
• 年：2009
• 卷：28
• 期：3
• 页码：342-347
• 全文大小：208.6 KB

文摘

Purpose To test the hypothesis that right enlargement assessed from right ventricular/left ventricular (RV/LV) dimension ratios of computed tomographic (CT) angiograms are equivalent irrespective of whether measured on axial views or reconstructed 4-chamber views. Methods RV/LV dimension ratios were calculated from measurements on axial views, manually reconstructed 4-chamber views and computer generated reconstructed 4-chamber views of CT angiograms in 152 patients with PE. Results Paired readings of the axial view and manually reconstructed 4-chamber view showed agreement with RV/LV ≥1 or RV/LV <1 in 114 of 127 (89.8 % ). Paired readings also showed agreement in 119 of 127 (93.7 % ) with axial views and computer generated reconstructed 4-chamber views. The McNemar test showed no statistically significant difference between assessments of RV enlargement (RV/LV ≥ 1) with any method. Conclusion Right ventricular enlargement can be determined from axial views on CT angiograms, which are readily and immediately available, without obtaining 4-chamber reconstructed views.