PURPOSE: To compare the indices of right ventricular dysfunction (RVD) obtained from axial transverse images with those derived from the reconstructed 4-chamber and short-axis views in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS: Eighty-eight patients with acute PE were retrospectively enrolled. For each patient, axial transverse images and reconstructed 4-chamber and short-axis views were reviewed. Measurements of the ratios of right ventricle to left ventricle (RV/LV) diameters and RV/LV areas were then obtained from all series. Values derived from each method were compared and correlated to arterial obstruction index. RESULTS: In the studied cohort, RV/LV diameters and RV/LV areas obtained from axial transverse images and the reconstructed 4-chamber views were not statistically different. In contrast, a statistically significant difference was observed between the values of RV/LV areas derived from both axial transverse and 4-chamber views and those obtained from short-axis views (P < 0.0001). There was a weak to moderate correlation between both RV/LV diameters and RV/LV areas and the computed tomographic obstruction index. However, when the study cohort was divided into 3 subgroups with an arterial obstruction index of less than 15% (n = 26), 15% to 30% (n = 21), and greater than 30% (n = 41), those who had values greater than 30% revealed the highest correlation with the indices of RVD. CONCLUSIONS: In patients with acute PE, the indices of RVD derived from axial transverse images and the reconstructed 4-chamber views yield comparative values. Given the simplicity of the former analysis, it should be taken into consideration for risk stratification in acute PE.
PURPOSE: To compare the indices of right ventricular dysfunction (RVD) obtained from axial transverse images with those derived from the reconstructed 4-chamber and short-axis views in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS: Eighty-eight patients with acute PE were retrospectively enrolled. For each patient, axial transverse images and reconstructed 4-chamber and short-axis views were reviewed. Measurements of the ratios of right ventricle to left ventricle (RV/LV) diameters and RV/LV areas were then obtained from all series. Values derived from each method were compared and correlated to arterial obstruction index. RESULTS: In the studied cohort, RV/LV diameters and RV/LV areas obtained from axial transverse images and the reconstructed 4-chamber views were not statistically different. In contrast, a statistically significant difference was observed between the values of RV/LV areas derived from both axial transverse and 4-chamber views and those obtained from short-axis views (P < 0.0001). There was a weak to moderate correlation between both RV/LV diameters and RV/LV areas and the computed tomographic obstruction index. However, when the study cohort was divided into 3 subgroups with an arterial obstruction index of less than 15% (n = 26), 15% to 30% (n = 21), and greater than 30% (n = 41), those who had values greater than 30% revealed the highest correlation with the indices of RVD. CONCLUSIONS: In patients with acute PE, the indices of RVD derived from axial transverse images and the reconstructed 4-chamber views yield comparative values. Given the simplicity of the former analysis, it should be taken into consideration for risk stratification in acute PE.
Authors: 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; Afzal Beemath; Ibrahim M Saeed; Pamela K Woodard Journal: J Thromb Thrombolysis Date: 2009-03-27 Impact factor: 2.300
Authors: Kanako K Kumamaru; Andetta R Hunsaker; Arash Bedayat; Shigeyoshi Soga; Jason Signorelli; Kimberly Adams; Nicole Wake; Michael T Lu; Frank J Rybicki Journal: Int J Cardiovasc Imaging Date: 2011-06-14 Impact factor: 2.357
Authors: Sven F Thieme; Nima Ashoori; Fabian Bamberg; Wieland H Sommer; Thorsten R C Johnson; Hanno Leuchte; Alexander Becker; Daniel Maxien; Andreas D Helck; Jürgen Behr; Maximilian F Reiser; Konstantin Nikolaou Journal: Eur Radiol Date: 2011-09-14 Impact factor: 5.315
Authors: Kanako K Kumamaru; Elizabeth George; Nina Ghosh; Carlos Gonzalez Quesada; Nicole Wake; Marie Gerhard-Herman; Frank J Rybicki Journal: Int J Cardiovasc Imaging Date: 2016-04-13 Impact factor: 2.357