S Roeger

Publications of S Roeger

• Pulmonary embolism: ct signs and cardiac biomarkers for predicting right ventricular dysfunction.

  Authors: T Henzler, S Roeger, M Meyer, U J Schoepf, J W Nance, D Haghi, W E Kaminski, M Neumaier, S O Schoenberg, C Fink

  The European respiratory journal : official journal of the European Society for Clinical Respiratory Physiology. 09/2011;

  To prospectively evaluate the accuracy of quantitative cardiac CT parameters and two cardiac biomarkers (NT-pro-Brain Natriuretic Peptide (NT-pro-BNP); troponin I), alone and in combination, forTo prospectively evaluate the accuracy of quantitative cardiac CT parameters and two cardiac biomarkers (NT-pro-Brain Natriuretic Peptide (NT-pro-BNP); troponin I), alone and in combination, for predicting right ventricular dysfunction (RVD) in patients with acute pulmonary embolism (PE).557 consecutive patients with suspected PE underwent pulmonary CTA. Patients with PE also underwent echocardiography and NT-pro-BNP/troponin I serum level measurements. 3 different CT measurements were obtained (RV/LVaxial, RV/LV4-CH), and RV/LVvolume). CT measurements and NT-pro-BNP/troponin I serum levels were correlated with RVD at echocardiography.Patients with RVD (n=77) showed significantly higher RV/LV ratios and NT-pro-BNP/troponin I levels compared to those without RVD (RV/LVaxial 1.68±0.84 vs. 1.00±0.21; RV/LV4ch 1.52±0.45 vs. 1.01±0.21; RV/LVvolume 1.97±0.53 vs. 1.07±0.52; serum NT-pro-BNP 6372±2319 vs. 1032±1559 ng·L(-1); troponin I 0.18±0.41 vs. 0.06±0.18). The area under the curve for the detection of RVD of RV/LVaxial, RV/LV4Ch, RV/LVvolume, NT-pro-BNP and troponin I were 0.84, 0.87, 0.93, 0.83 and 0.70 respectively. The combination of biomarkers and RV/LVvolume increased the AUC to 0.95 (RV/LVvolume with NT-pro-BNP) and 0.93 (RV/LVvolume with troponin I).RV/LVvolume is the most accurate CT parameter for identifying patients with RVD. A combination of RV/LVvolume with NT-pro-BNP or troponin I measurements improves the diagnostic accuracy of either test alone.

• Correlation of CT angiographic pulmonary artery obstruction scores with right ventricular dysfunction and clinical outcome in patients with acute pulmonary embolism.

  Authors: P Apfaltrer, T Henzler, M Meyer, S Roeger, D Haghi, J Gruettner, T Süselbeck, R B Wilson, U J Schoepf, S O Schoenberg, C Fink

  European journal of radiology. 09/2011;

  OBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS ANDOBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS: In a prospective study of 50 patients (66±12.9 years) with PE pulmonary artery OS (Qanadli, Mastora, and Mastora central) were assessed by two radiologists. To assess RVD all patients underwent echocardiography within 24h. Furthermore, RVD on CT was assessed by calculating the right ventricular/left ventricular (RV/LV) diameter ratios on transverse (RV/LVtrans) and four-chamber views (RV/LV4ch) as well as the RV/LV volume ratio (RV/LVvol). OS were correlated with RVD and the occurrence of adverse clinical outcomes (defined as death, need for intensive care treatment, or cardiac insufficiency ≥NYHA III). RESULTS: Mean Mastora, Qanadli, and Mastora central OS were 26.4±17.7, 12.6±9.9 and 7.5±9, respectively. Echocardiography demonstrated moderate and severe RVD in 10 and 5 patients, respectively. Patients with moderate and severe RVD showed significantly higher Mastora central scores than patients without RVD (14±10.8 vs. 5.9±7.8 [p=0.05]; 17.6±13.2 vs. 5.9±7.8 [p=0.038]). A relevant correlation (i.e. r≥0.6) between OS and CT parameters for RVD were only found for the Mastora score and the Mastora central score (RV/LV4ch: r=0.61 and 0.68, RV/LVvol: r=0.61 and 0.6). 18 patients experienced an adverse clinical outcome. None of the OS differed significantly between patients with and without adverse clinical outcome. CONCLUSION: Pulmonary artery obstruction scores can differentiate between patients with and without RVD. However, in this study, obstruction scores were not correlated to adverse clinical outcome.

• Correlation of CT angiographic pulmonary artery obstruction scores with right ventricular dysfunction and clinical outcome in patients with acute pulmonary embolism

  Authors: P. Apfaltrer, T. Henzler, M. Meyer, S. Roeger, D. Haghi, J. Gruettner, T. Suselbeck, R. B. Wilson, U. J. Schoepf, S. O. Schoenberg, C. Fink

  Eur J Radiol.

  OBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS ANDOBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS: In a prospective study of 50 patients (66+/-12.9 years) with PE pulmonary artery OS (Qanadli, Mastora, and Mastora central) were assessed by two radiologists. To assess RVD all patients underwent echocardiography within 24h. Furthermore, RVD on CT was assessed by calculating the right ventricular/left ventricular (RV/LV) diameter ratios on transverse (RV/LVtrans) and four-chamber views (RV/LV4ch) as well as the RV/LV volume ratio (RV/LVvol). OS were correlated with RVD and the occurrence of adverse clinical outcomes (defined as death, need for intensive care treatment, or cardiac insufficiency >/=NYHA III). RESULTS: Mean Mastora, Qanadli, and Mastora central OS were 26.4+/-17.7, 12.6+/-9.9 and 7.5+/-9, respectively. Echocardiography demonstrated moderate and severe RVD in 10 and 5 patients, respectively. Patients with moderate and severe RVD showed significantly higher Mastora central scores than patients without RVD (14+/-10.8 vs. 5.9+/-7.8 [p=0.05]; 17.6+/-13.2 vs. 5.9+/-7.8 [p=0.038]). A relevant correlation (i.e. r>/=0.6) between OS and CT parameters for RVD were only found for the Mastora score and the Mastora central score (RV/LV4ch: r=0.61 and 0.68, RV/LVvol: r=0.61 and 0.6). 18 patients experienced an adverse clinical outcome. None of the OS differed significantly between patients with and without adverse clinical outcome. CONCLUSION: Pulmonary artery obstruction scores can differentiate between patients with and without RVD. However, in this study, obstruction scores were not correlated to adverse clinical outcome.

• Pulmonary embolism: CT signs and cardiac biomarkers for predicting right ventricular dysfunction

  Authors: T. Henzler, S. Roeger, M. Meyer, U. J. Schoepf, J. W. Nance, D. Haghi, W. E. Kaminski, M. Neumaier, S. O. Schoenberg, C. Fink

  Eur Respir J. 39(4):919-26.

  The aim of this study was to prospectively evaluate the accuracy of quantitative cardiac computed tomography (CT) parameters and two cardiac biomarkers (N-terminal-pro-brain natriuretic peptideThe aim of this study was to prospectively evaluate the accuracy of quantitative cardiac computed tomography (CT) parameters and two cardiac biomarkers (N-terminal-pro-brain natriuretic peptide (NT-pro-BNP) and troponin I), alone and in combination, for predicting right ventricular dysfunction (RVD) in patients with acute pulmonary embolism. 557 consecutive patients with suspected pulmonary embolism underwent pulmonary CT angiography. Patients with pulmonary embolism also underwent echocardiography and NT-pro-BNP/troponin I serum level measurements. Three different CT measurements were obtained (right ventricular (RV)/left ventricular (LV)(axial), RV/LV(4-CH) and RV/LV(volume)). CT measurements and NT-pro-BNP/troponin I serum levels were correlated with RVD at echocardiography. 77 patients with RVD showed significantly higher RV/LV ratios and NT-pro-BNP/troponin I levels compared to those without RVD (RV/LV(axial) 1.68+/-0.84 versus 1.00+/-0.21; RV/LV(4-CH) 1.52+/-0.45 versus 1.01+/-0.21; RV/LV(volume) 1.97+/-0.53 versus 1.07+/-0.52; serum NT-pro-BNP 6,372+/-2,319 versus 1,032+/-1,559 ng.L(-1); troponin I 0.18+/-0.41 versus 0.06+/-0.18 g.L(-1)). The area under the curve for the detection of RVD of RV/LV(axial), RV/LV(4-CH), RV/LV(volume), NT-pro-BNP and troponin I were 0.84, 0.87, 0.93, 0.83 and 0.70 respectively. The combination of biomarkers and RV/LV(volume) increased the AUC to 0.95 (RV/LV(volume) with NT-pro-BNP) and 0.93 (RV/LV(volume) with troponin I). RV/LV(volume) is the most accurate CT parameter for identifying patients with RVD. A combination of RV/LV(volume) with NT-pro-BNP or troponin I measurements improves the diagnostic accuracy of either test alone.

• Correlation of CT angiographic pulmonary artery obstruction scores with right ventricular dysfunction and clinical outcome in patients with acute pulmonary embolism

  Authors: P. Apfaltrer, T. Henzler, M. Meyer, S. Roeger, D. Haghi, J. Gruettner, T. Suselbeck, R. B. Wilson, U. J. Schoepf, S. O. Schoenberg, C. Fink

  Eur J Radiol.

  OBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS ANDOBJECTIVE: To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS: In a prospective study of 50 patients (66+/-12.9 years) with PE pulmonary artery OS (Qanadli, Mastora, and Mastora central) were assessed by two radiologists. To assess RVD all patients underwent echocardiography within 24h. Furthermore, RVD on CT was assessed by calculating the right ventricular/left ventricular (RV/LV) diameter ratios on transverse (RV/LVtrans) and four-chamber views (RV/LV4ch) as well as the RV/LV volume ratio (RV/LVvol). OS were correlated with RVD and the occurrence of adverse clinical outcomes (defined as death, need for intensive care treatment, or cardiac insufficiency >/=NYHA III). RESULTS: Mean Mastora, Qanadli, and Mastora central OS were 26.4+/-17.7, 12.6+/-9.9 and 7.5+/-9, respectively. Echocardiography demonstrated moderate and severe RVD in 10 and 5 patients, respectively. Patients with moderate and severe RVD showed significantly higher Mastora central scores than patients without RVD (14+/-10.8 vs. 5.9+/-7.8 [p=0.05]; 17.6+/-13.2 vs. 5.9+/-7.8 [p=0.038]). A relevant correlation (i.e. r>/=0.6) between OS and CT parameters for RVD were only found for the Mastora score and the Mastora central score (RV/LV4ch: r=0.61 and 0.68, RV/LVvol: r=0.61 and 0.6). 18 patients experienced an adverse clinical outcome. None of the OS differed significantly between patients with and without adverse clinical outcome. CONCLUSION: Pulmonary artery obstruction scores can differentiate between patients with and without RVD. However, in this study, obstruction scores were not correlated to adverse clinical outcome.

• Pulmonary embolism: CT signs and cardiac biomarkers for predicting right ventricular dysfunction

  Authors: T. Henzler, S. Roeger, M. Meyer, U. J. Schoepf, J. W. Nance, D. Haghi, W. E. Kaminski, M. Neumaier, S. O. Schoenberg, C. Fink

  Eur Respir J. 39(4):919-26.

  The aim of this study was to prospectively evaluate the accuracy of quantitative cardiac computed tomography (CT) parameters and two cardiac biomarkers (N-terminal-pro-brain natriuretic peptideThe aim of this study was to prospectively evaluate the accuracy of quantitative cardiac computed tomography (CT) parameters and two cardiac biomarkers (N-terminal-pro-brain natriuretic peptide (NT-pro-BNP) and troponin I), alone and in combination, for predicting right ventricular dysfunction (RVD) in patients with acute pulmonary embolism. 557 consecutive patients with suspected pulmonary embolism underwent pulmonary CT angiography. Patients with pulmonary embolism also underwent echocardiography and NT-pro-BNP/troponin I serum level measurements. Three different CT measurements were obtained (right ventricular (RV)/left ventricular (LV)(axial), RV/LV(4-CH) and RV/LV(volume)). CT measurements and NT-pro-BNP/troponin I serum levels were correlated with RVD at echocardiography. 77 patients with RVD showed significantly higher RV/LV ratios and NT-pro-BNP/troponin I levels compared to those without RVD (RV/LV(axial) 1.68+/-0.84 versus 1.00+/-0.21; RV/LV(4-CH) 1.52+/-0.45 versus 1.01+/-0.21; RV/LV(volume) 1.97+/-0.53 versus 1.07+/-0.52; serum NT-pro-BNP 6,372+/-2,319 versus 1,032+/-1,559 ng.L(-1); troponin I 0.18+/-0.41 versus 0.06+/-0.18 g.L(-1)). The area under the curve for the detection of RVD of RV/LV(axial), RV/LV(4-CH), RV/LV(volume), NT-pro-BNP and troponin I were 0.84, 0.87, 0.93, 0.83 and 0.70 respectively. The combination of biomarkers and RV/LV(volume) increased the AUC to 0.95 (RV/LV(volume) with NT-pro-BNP) and 0.93 (RV/LV(volume) with troponin I). RV/LV(volume) is the most accurate CT parameter for identifying patients with RVD. A combination of RV/LV(volume) with NT-pro-BNP or troponin I measurements improves the diagnostic accuracy of either test alone.