OBJECTIVE: To validate and to determine the reproducibility of cardiac output (CO) measurements based on a test-bolus examination in multislice spiral computed tomography (MSCT) in comparison with invasively measured CO using the thermal dilution technique. MATERIAL AND METHODS: In 8 swine, CO was determined by invasive thermal dilution technique and by analysis of enhancement data from dynamic MSCT test-bolus examinations. To assess reproducibility, all MSCT examinations were performed twice. Results were compared using Pearson's correlation coefficient and Bland-Altman plots. RESULTS: Measure by thermal dilution technique CO was 3.71 +/- 1.12 L/min, whereas CO was 3.67 +/- 1.30 L/min using MSCT. Pearson's correlation coefficient was 0.89. The average deviation between MSCT and thermal dilution technique was 0.04 L/min with a standard deviation of 0.59 L/min. There was a good agreement between both MSCT measurements with a mean deviation of -0.03 L/min and a standard deviation of 0.51 L/min. CONCLUSION: CO can reliably be determined from MSCT by means of indicator dilution technique. Measurements are reproducible and provide valuable information on the overall cardiovascular performance without application of additional contrast material or radiation. As this technique does not require time-consuming postprocessing it can be added to routine reporting.
OBJECTIVE: To validate and to determine the reproducibility of cardiac output (CO) measurements based on a test-bolus examination in multislice spiral computed tomography (MSCT) in comparison with invasively measured CO using the thermal dilution technique. MATERIAL AND METHODS: In 8 swine, CO was determined by invasive thermal dilution technique and by analysis of enhancement data from dynamic MSCT test-bolus examinations. To assess reproducibility, all MSCT examinations were performed twice. Results were compared using Pearson's correlation coefficient and Bland-Altman plots. RESULTS: Measure by thermal dilution technique CO was 3.71 +/- 1.12 L/min, whereas CO was 3.67 +/- 1.30 L/min using MSCT. Pearson's correlation coefficient was 0.89. The average deviation between MSCT and thermal dilution technique was 0.04 L/min with a standard deviation of 0.59 L/min. There was a good agreement between both MSCT measurements with a mean deviation of -0.03 L/min and a standard deviation of 0.51 L/min. CONCLUSION: CO can reliably be determined from MSCT by means of indicator dilution technique. Measurements are reproducible and provide valuable information on the overall cardiovascular performance without application of additional contrast material or radiation. As this technique does not require time-consuming postprocessing it can be added to routine reporting.
Authors: Andreas H Mahnken; Michael Grasruck; Bernhard Schmidt; Rolf W Günther; Joachim E Wildberger Journal: Eur Radiol Date: 2007-12-04 Impact factor: 5.315
Authors: Mustafa R Bashir; Paul W Weber; Daniela B Husarik; Laurens E Howle; Rendon C Nelson Journal: Int J Cardiovasc Imaging Date: 2011-09-07 Impact factor: 2.357
Authors: Joachim Ernst Wildberger; Ernst Klotz; Hendrik Ditt; Elmar Spüntrup; Andreas H Mahnken; Rolf W Günther Journal: Eur Radiol Date: 2005-03-18 Impact factor: 5.315
Authors: Michael Pienn; Gabor Kovacs; Maria Tscherner; Thorsten R Johnson; Peter Kullnig; Rudolf Stollberger; Andrea Olschewski; Horst Olschewski; Zoltán Bálint Journal: Int J Cardiovasc Imaging Date: 2013-08-23 Impact factor: 2.357
Authors: Mihaela Roxana Popescu; Alexandra Bouariu; Anca Marina Ciobanu; Nicolae Gică; Anca Maria Panaitescu Journal: Medicina (Kaunas) Date: 2022-02-15 Impact factor: 2.430