scholarly journals Left ventricular torsion and strain patterns in heart failure with normal ejection fraction are similar to age-related changes

2009 ◽  
Vol 10 (6) ◽  
pp. 793-800 ◽  
Author(s):  
T. T. Phan ◽  
G. N. Shivu ◽  
K. Abozguia ◽  
M. Gnanadevan ◽  
I. Ahmed ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Left Ventricular ◽  
Normal Ejection Fraction ◽  
Left Ventricular Torsion ◽  
Age Related ◽  
Ventricular Torsion ◽  
Age Related Changes

Age-Related Changes in Left Ventricular Torsion as Assessed by 2-Dimensional Ultrasound Speckle Tracking Imaging

2008 ◽  
Vol 38 (10) ◽  
pp. 529 ◽  
Author(s):  
Hyun Jik Lee ◽  
Bong Soo Kim ◽  
Jae Hoon Kim ◽  
Hee Sang Jang ◽  
Byung Seok Bae ◽  
...  
Keyword(s):  
Speckle Tracking ◽  
Left Ventricular ◽  
Speckle Tracking Imaging ◽  
Left Ventricular Torsion ◽  
Age Related ◽  
Ventricular Torsion ◽  
Age Related Changes

The Improvement of Torsion Assessed by Cardiovascular Magnetic Resonance Feature Tracking after Coronary Artery Bypass Grafting: A Sensitive Index of Cardiac Function

2017 ◽  
Vol 20 (1) ◽  
pp. 026 ◽  
Author(s):  
Nan Cheng ◽  
Liuquan Cheng ◽  
Rong Wang ◽  
Lin Zhang ◽  
Changqing Gao
Keyword(s):  
Cardiovascular Magnetic Resonance ◽  
Magnetic Resonance ◽  
Ejection Fraction ◽  
Cardiac Function ◽  
Feature Tracking ◽  
Artery Bypass ◽  
Left Ventricular ◽  
Rapid Acquisition ◽  
Left Ventricular Torsion ◽  
Ventricular Torsion

Objective: The aim of this study was to quantify left ventricular torsion by newly applied cardiovascular magnetic resonance feature tracking (CMR-FT), and to evaluate the clinical value of the ventricular torsion as a sensitive indicator of cardiac function by comparison of preoperative and postoperative torsion.Methods: A total of 54 volunteers and 36 patients with previous myocardial infarction (MI) and LV ejection fraction (EF) between 30%-50% were screened preoperatively or postoperatively by MRI. The patients’ short axis views of the whole heart were acquired, and all patients had a scar area >75% in at least one of the anterior or inferior segments. Their apical and basal rotation values were analyzed by feature tracking, and the correlation analysis was performed for the improvement of LV torsion and ejection fraction after CABG. The intra- and inter-observer reliabilities of torsion measured by CMR-FT were assessed.Results: In normal hearts, the apex rotated counterclockwise in the systolic period with the peak rotation as 10.2 ± 4.8°, and the base rotated clockwise as the peak value was 7.0 ± 3.3°. There was a timing hiatus between the apex and base untwisting, during which period the heart recoils and its suction sets the stage for the following rapid filling period. The postoperative torsion and rotation significantly improved compared with preoperative ones. However, the traditional indicator of cardiac function, ejection fraction, didn’t show significant improvement.Conclusion: Left ventricular torsion derived from CMR-FT, which does not require specialized CMR sequences, was sensitive to patients with low ejection fraction whose cardiac function significantly improved after CABG. The rapid acquisition of this measurement has potential for the assessment of cardiac function in clinical practice. 

scholarly journals Left Ventricular Torsion in Hypertension and Hypertensive Heart Failure　― 3-Dimensional Speckle Tracking Echocardiography Assessment ―

2019 ◽  
Vol 1 (2) ◽  
pp. 78-86 ◽  
Author(s):  
Shingo Minatoguchi ◽  
Takashi Yoshizane ◽  
Ryuhei Tanaka ◽  
Makoto Iwama ◽  
Takatomo Watanabe ◽  
...  
Keyword(s):  
Heart Failure ◽  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
3 Dimensional ◽  
Left Ventricular Torsion ◽  
Ventricular Torsion

scholarly journals B-Type Natriuretic Peptide in Heart Failure With Preserved Ejection Fraction　― Relevance to Age-Related Left Ventricular Modeling in Japanese ―

2017 ◽  
Vol 81 (7) ◽  
pp. 1006-1013 ◽  
Author(s):  
Eisaku Harada ◽  
Yuji Mizuno ◽  
Fumihito Kugimiya ◽  
Makoto Shono ◽  
Hiroyuki Maeda ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Natriuretic Peptide ◽  
Left Ventricular ◽  
Preserved Ejection Fraction ◽  
Age Related
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