BACKGROUND: Left atrial (LA) volume, is related to cardiovascular morbidity. LA enlargement is usually assessed using trans-thoracic echocardiography (TTE). The association of modern multislice computed tomography (MSCT) imaging and new 3D reconstruction software, allows direct cardiac chamber volume measurement without geometrical assumptions. This study was designed to evaluate the maximal (LAmax) and minimal (LAmin) LA volumes during the cardiac cycle using MSCT and TTE approaches. METHODS: We screened 26 consecutive patients referred for coronary imaging using a 64-MSCT scanner and a TTE within 12 h. Contiguous multiphase images were generated from axial MSCT data and semi-automated 3D segmentation technique was applied to generate LA volumes. Using TTE, LA volumes and LA ejection fraction (LAEF) were obtained using five assumptions methods: cubing equation, diameter-length formula, area-length formula, ellipsoidal formula and biplane Simpson rule. RESULTS: Five patients were excluded for inadequate TTE visualization and one for ectopic beats during MSCT. The sample consisted in 20 patients (11 men, age: 56+/-14 years). Using MSCT, LA volumes indexed to body surface area were: LAmax=74+/-27 ml/m(2), LAmin=49+/-26 ml/m(2), with close correlations with TTE measurements and a significant underestimation by all TTE approaches. A close correlation was observed between LAEF using MSCT and TTE Simpson's method: 36+/-14% vs. 37+/-14%, r=0.99, p<0.0001. CONCLUSION: Theses results suggest that the assessment of LA volumes and ejection fraction was reliable using 64-MSCT in patients referred for coronary computed tomography imaging.
BACKGROUND: Left atrial (LA) volume, is related to cardiovascular morbidity. LA enlargement is usually assessed using trans-thoracic echocardiography (TTE). The association of modern multislice computed tomography (MSCT) imaging and new 3D reconstruction software, allows direct cardiac chamber volume measurement without geometrical assumptions. This study was designed to evaluate the maximal (LAmax) and minimal (LAmin) LA volumes during the cardiac cycle using MSCT and TTE approaches. METHODS: We screened 26 consecutive patients referred for coronary imaging using a 64-MSCT scanner and a TTE within 12 h. Contiguous multiphase images were generated from axial MSCT data and semi-automated 3D segmentation technique was applied to generate LA volumes. Using TTE, LA volumes and LA ejection fraction (LAEF) were obtained using five assumptions methods: cubing equation, diameter-length formula, area-length formula, ellipsoidal formula and biplane Simpson rule. RESULTS: Five patients were excluded for inadequate TTE visualization and one for ectopic beats during MSCT. The sample consisted in 20 patients (11 men, age: 56+/-14 years). Using MSCT, LA volumes indexed to body surface area were: LAmax=74+/-27 ml/m(2), LAmin=49+/-26 ml/m(2), with close correlations with TTE measurements and a significant underestimation by all TTE approaches. A close correlation was observed between LAEF using MSCT and TTE Simpson's method: 36+/-14% vs. 37+/-14%, r=0.99, p<0.0001. CONCLUSION: Theses results suggest that the assessment of LA volumes and ejection fraction was reliable using 64-MSCT in patients referred for coronary computed tomography imaging.
Authors: J Tobias Kühl; Jacob Lønborg; Andreas Fuchs; Mads J Andersen; Niels Vejlstrup; Henning Kelbæk; Thomas Engstrøm; Jacob E Møller; Klaus F Kofoed Journal: Int J Cardiovasc Imaging Date: 2011-08-17 Impact factor: 2.357
Authors: Yae Min Park; Mi Na Kim; Jong-Il Choi; Hong Euy Lim; Seong-Mi Park; Sang Weon Park; Wan Joo Shim; Young-Hoon Kim Journal: Int J Cardiovasc Imaging Date: 2013-04-28 Impact factor: 2.357
Authors: Anson M Lee; Abdulhameed Aziz; Jacob Didesch; Kal L Clark; Richard B Schuessler; Ralph J Damiano Journal: J Thorac Cardiovasc Surg Date: 2012-09-17 Impact factor: 5.209
Authors: Amir A Mahabadi; Quynh A Truong; Christopher L Schlett; Bharat Samy; Christopher J O'Donnell; Caroline S Fox; Fabian Bamberg; Udo Hoffmann Journal: J Cardiovasc Comput Tomogr Date: 2009-11-27
Authors: Hye Mi Gweon; Sang Jin Kim; Tae Hoon Kim; Sang Min Lee; Yoo Jin Hong; Se-Joong Rim Journal: Korean J Radiol Date: 2010-04-30 Impact factor: 3.500
Authors: Quynh A Truong; Fabian Bamberg; Amir A Mahabadi; Michael Toepker; Hang Lee; Ian S Rogers; Sujith K Seneviratne; Christopher L Schlett; Thomas J Brady; John T Nagurney; Udo Hoffmann Journal: Int J Cardiol Date: 2009-07-16 Impact factor: 4.164
Authors: Amir A Mahabadi; Bharat Samy; Sujith K Seneviratne; Michael H Toepker; Fabian Bamberg; Udo Hoffmann; Quynh A Truong Journal: J Cardiovasc Comput Tomogr Date: 2009-02-14