Abdominal aortic wall motion of healthy and hypertensive subjects: Evaluation of tissue Doppler velocity imaging

2008 ◽  
Vol 36 (4) ◽  
pp. 218-225 ◽  
Author(s):  
Ying Huang ◽  
Bing Hu ◽  
Pin-Tong Huang ◽  
Hai-Yan Sun ◽  
Jia-An Zhu
Keyword(s):  
Wall Motion ◽  
Aortic Wall ◽  
Tissue Doppler ◽  
Doppler Velocity ◽  
Velocity Imaging ◽  
Abdominal Aortic

Myocardial Tissue Doppler Velocity Imaging in Children: Comparative Study between Two Ultrasound Systems

2010 ◽  
Vol 23 (9) ◽  
pp. 929-937 ◽  
Author(s):  
Laurens P. Koopman ◽  
Cameron Slorach ◽  
Cedric Manlhiot ◽  
Brian W. McCrindle ◽  
Mark K. Friedberg ◽  
...  
Keyword(s):  
Comparative Study ◽  
Tissue Doppler ◽  
Doppler Velocity ◽  
Myocardial Tissue ◽  
Velocity Imaging

Increased Anterior Abdominal Aortic Wall Motion: Possible Role in Aneurysm Pathogenesis and Design of Endovascular Devices

2007 ◽  
Vol 14 (4) ◽  
pp. 574-584 ◽  
Author(s):  
Craig J. Goergen ◽  
Bonnie L. Johnson ◽  
Joan M. Greve ◽  
Charles A. Taylor ◽  
Christopher K. Zarins
Keyword(s):  
Body Mass ◽  
Wall Motion ◽  
Aortic Wall ◽  
Cyclic Strain ◽  
Posterior Wall ◽  
Anterior Wall ◽  
Dynamic Strain ◽  
Wall Displacement ◽  
Abdominal Aortic ◽  
Endovascular Devices

Purpose: To determine whether variations in aortic wall motion exist in mammalian species other than humans and to consider the potential implications of such variations. Methods: M-mode ultrasound was used to measure abdominal aortic wall motion in 4 animal species [mice (n=10), rats (n=8), rabbits (n=7), and pigs (n=5)], and humans (n=6). Anterior wall displacement, posterior wall displacement, and diastolic diameter were measured. The ratio of displacement to diameter and cyclic strain were calculated. Results: Body mass varied from 24.1±2.4 g (mouse) to 61.8±13.4 kg (human); aortic diameter varied from 0.53±0.07 mm (mouse) to 1.2±1 mm (human). Anterior wall displacement was 2.5 to 4.0 times greater than posterior among the species studied. The ratios of wall displacement to diastolic diameter were similar for the anterior (range 9.40%–11.80%) and posterior (range 2.49%–3.91%) walls among species. The ratio of anterior to posterior displacement (range 2.47–4.03) and aortic wall circumferential cyclic strain (range 12.1%–15.7%) were also similar. An allometric scaling exponent was experimentally derived relating anterior wall (0.377±0.032, R2=0.94) and posterior wall (0.378±0.037, R2=0.93) displacement to body mass. Conclusion: Abdominal aortic wall dynamics are similar in animals and humans regardless of aortic size, with more anterior than posterior wall motion. Wall displacement increases linearly with diameter, but allometrically with body mass. These data suggest increased dynamic strain of the anterior wall. Increased strain, corresponding to increased elastin fatigue, may help explain why human abdominal aortic aneurysms initially develop anteriorly. Aortic wall motion should be considered when developing endovascular devices, since asymmetric motion may affect device migration, fixation, and sealing.

Effects of volume loading on strain rate and tissue Doppler velocity imaging in patients with idiopathic dilated cardiomyopathy

2006 ◽  
Vol 7 (12) ◽  
pp. 852-858 ◽  
Author(s):  
Maria Lucia Eufrasia Vicario ◽  
Pio Caso ◽  
Alfonso Roberto Martiniello ◽  
Luca Fontanella ◽  
Mario Petretta ◽  
...  
Keyword(s):  
Strain Rate ◽  
Dilated Cardiomyopathy ◽  
Tissue Doppler ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Doppler Velocity ◽  
Volume Loading ◽  
Velocity Imaging

scholarly journals Echocardiographic assessment of arrhythmogenic right ventricular cardiomyopathy

Heart ◽  
2001 ◽  
Vol 86 (1) ◽  
pp. 31-38
Author(s):  
L Lindström ◽  
U M Wilkenshoff ◽  
H Larsson ◽  
B Wranne
Keyword(s):  
Right Ventricular ◽  
Wall Motion ◽  
Arrhythmogenic Right Ventricular Cardiomyopathy ◽  
Velocity Ratio ◽  
Tissue Doppler ◽  
Doppler Velocity ◽  
Control Group ◽  
Ventricular Cardiomyopathy ◽  
Velocity Pattern ◽  
Ventricular Dimensions

OBJECTIVETo evaluate new echocardiographic modes in the diagnosis of arrhythmogenic right ventricular cardiomyopathy (ARVC).DESIGNProspective observational study.SETTINGUniversity Hospital.SUBJECTS15 patients with ARVC and a control group of 25 healthy subjects.METHODSTransthoracic echocardiography included cross sectional measurements of the right ventricular outflow tract, right ventricular inflow tract, and right ventricular body. Wall motion was analysed subjectively. M mode and pulsed tissue Doppler techniques were used for quantitative measurement of tricuspid annular motion at the lateral, septal, posterior, and anterior positions. Doppler assessment of tricuspid flow and systemic venous flow was also performed.RESULTSAssessed by M mode, the total amplitude of the tricuspid annular motion was significantly decreased in the lateral, septal, and posterior positions in the patients compared with the controls. The tissue Doppler velocity pattern showed decreased early diastolic peak annular (EA) velocity and an accompanying decrease in early (EA) to late diastolic (AA) velocity ratio in all positions; the systolic annular velocity was significantly decreased only in the lateral position. Four patients had normal right ventricular dimensions and three were judged to have normal right ventricular wall motion. The patient group had also a significantly decreased tricuspid flow E:A ratio.CONCLUSIONSTricuspid annular measurements are valuable, easy to obtain, and allow quantitative assessment of right ventricular function. ARVC patients showed an abnormal velocity pattern that may be an early but non-specific sign of the disease. Normal right ventricular dimensions do not exclude ARVC, and subjective detection of early changes in wall motion may be difficult.

Increased Anterior Abdominal Aortic Wall Motion: Possible Role in Aneurysm Pathogenesis and Design of Endovascular Devices

2007 ◽  
Vol 14 (4) ◽  
pp. 574-584 ◽  
Author(s):  
Craig J. Goergen ◽  
Bonnie L. Johnson ◽  
Joan M. Greve ◽  
Charles A. Taylor ◽  
Christopher K. Zarins
Keyword(s):  
Wall Motion ◽  
Aortic Wall ◽  
Abdominal Aortic ◽  
Endovascular Devices

scholarly journals Left ventricular function in patients with chronic kidney disease evaluated by colour tissue Doppler velocity imaging

2005 ◽  
Vol 21 (1) ◽  
pp. 125-132 ◽  
Author(s):  
Shirley Yumi Hayashi ◽  
Morteza Rohani ◽  
Bengt Lindholm ◽  
Lars-Åke Brodin ◽  
Britta Lind ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Tissue Doppler ◽  
Left Ventricular ◽  
Doppler Velocity ◽  
Velocity Imaging
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