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Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction. | Int. J. Med. Sci. 2011 8 106 International Journal of Medical Sciences 2011 8 2 106-113 Ivyspring International Publisher. All rights reserved. Research Paper Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction Thomas Butz x Corinna N. Lang Marc van Bracht Magnus W. Prull Hakan Yeni Petra Maagh Gunnar Plehn Axel Meissner Hans-Joachim Trappe Department of Cardiology and Angiology Marienhospital Herne Ruhr University Bochum Hoelkeskampring 40 D-44625 Herne Germany Both authors contributed equally to this work H Corresponding author Thomas Butz MD Department of Cardiology and Angiology Marienhospital Herne Ruhr-University Bochum Hoelkeskampring 40 D-44625 Herne Germany. Phone 49 0 2323 499-0 Fax 49 0 2323 499-360 Mail Thomas.Butz@Marienhospital-Herne.de Received 2010.11.14 Accepted 2011.01.31 Published 2011.02.01 Abstract Aims Strain rate imaging techniques have been proposed for the detection of ischemic or viable myocardium in coronary artery disease which is still a challenge in clinical cardiology. This retrospective comparative study analyzed regional left ventricular function and scaring with two-dimensional strain 2DS in the first 4 to 10 days after acute anterior myocardial infarction AMI . Methods and results The study population consisted of 32 AMI patients with an LAD occlusion and successful reperfusion. The assessment of peak systolic 2DS and peak systolic strain rate SR was performed segment-oriented with the angle-independent speckle tracking algorithm Velocity Vector Imaging VVI . The infarcted adjacent and non-infarcted segments were revealed by late enhancement MRI LE-MRI which was used as reference for the comparison with 2DS. The infarcted segments showed a significant decrease of tissue velocities 2DS and SR in comparison to the non-affected segments. Conclusion 2DS and SR as assessed by VVI seem to be a suitable approach for echocardiographic .
