Evaluation of left ventricular rotation and twist using speckle tracking imaging in patients with atrial septal defect
| Autor: | Jialin Song, Hao-yi Yang, Chun Tong, Xia Yang, Jie Zhang, You-bin Deng, Chun-Lei Li |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Systole Heart Ventricles Biomedical Engineering Volume overload Cardiology Doppler echocardiography Biochemistry Heart Septal Defects Atrial Ventricular Function Left Biomaterials Internal medicine Genetics Medicine Humans Earth-Surface Processes Pressure overload Heart septal defect Ejection fraction medicine.diagnostic_test business.industry Twist-Related Protein 1 Nuclear Proteins medicine.disease Pulmonary hypertension Echocardiography Doppler Blood pressure Echocardiography Hypertension Female business |
| Zdroj: | Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban. 28(2) |
| ISSN: | 1672-0733 |
| Popis: | Speckle tracking imaging (STI) was employed to investigate the effect of right ventricular (RV) volume and pressure overload on left ventricular (LV) rotation and twist in 35 patients with atrial septal defect (ASD), 18 of which with pulmonary hypertension, and 21 healthy subjects serving as controls. The peak rotations of 6 segments at the basal and apical short-axises and the average peak rotation and interval time of the 6 segments in the opposite direction during early systolic phase were measured respectively. LV twist versus time profile was drawn and the peak twist and time to peak twist were calculated. LV ejection fraction (EF) was measured by Biplane Simpson. Compared to ASD patients without pulmonary hypertension and healthy subjects, the peak rotations of posterior, inferior and postsept walls at the basal level were lower (P |
| Databáze: | OpenAIRE |
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