Severe aortic insufficiency and normal systolic function: determining regional left ventricular wall stress by finite-element analysis

Cupps, Brian P.; Moustakidis, Pavlos; Pomerantz, Benjamin J.; Vedala, Giridhar; Scheri, Randall P.; Kouchoukos, Nicholas T.; Dávila‐Román, Víctor G.; Pasque, Michael K.

doi:10.1016/s0003-4975(03)00671-4

Cited by 22 publications

(5 citation statements)

References 23 publications

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“…6,21 The quantitative assessment of LV properties and ventricular muscle in terms of myocardial wall stress have been used in the investigation of various heart diseases. [22][23][24] Wall stress may be calculated at diastole; however, this calculation requires invasive measurements of LV blood pressure by retrograde left heart catheterization. 25 In a previous study, 3 we concluded that the E/Ea ratio provided an index of LVEDP that could be measured noninvasively with color-TDI.…”

Section: Discussionmentioning

confidence: 99%

“…CAD is the end result of the accumulation of atheromatous plaques within the walls of the coronary arteries that supply the myocardium with oxygen and nutrients . The quantitative assessment of LV properties and ventricular muscle in terms of myocardial wall stress have been used in the investigation of various heart diseases . Wall stress may be calculated at diastole; however, this calculation requires invasive measurements of LV blood pressure by retrograde left heart catheterization .…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of left anterior descending coronary artery stenosis severity from myocardial end‐diastolic wall stress estimated by tissue‐Doppler imaging

Moladoust

Mokhtari‐Dizaji

Ojaghi-Haghighi

2013

J of Clinical Ultrasound

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of left anterior descending coronary artery stenosis severity from myocardial end‐diastolic wall stress estimated by tissue‐Doppler imaging

Moladoust

Mokhtari‐Dizaji

Ojaghi-Haghighi

2013

J of Clinical Ultrasound

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“…The importance of the assessment of the properties of the left ventricle (LV) and ventricular muscle and their quantification has been evaluated in terms of myocardial wall stress. These calculations have been used in the investigation of various heart diseases 23–26 . Wall stress may be calculated at the diastolic phase of the cardiac cycle although this calculation requires invasive measurements of LV blood pressure.…”

Section: Discussionmentioning

confidence: 99%

Estimation of LV End‐Diastolic Pressure Using Color‐TDI and Its Application to Noninvasive Quantification of Myocardial Wall Stress

et al. 2009

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Background: This study was undertaken to evaluate early-diastolic annular velocity (Ea) by color-TDI, combined with the early transmitral filling velocity (E) by pulsed Doppler echocardiography for estimation of left ventricular end diastolic pressure (LVEDP). We applied LVEDP to noninvasive quantification of myocardial wall stress in end-diastole. Forty-one coronary artery disease (CAD) patients with sinus rhythm underwent echocardiography and cardiac catheterization evaluated in the study. Methods: First linear regression analysis was performed to assess the relationships between E/Ea and LVEDP. Second LVEDP estimation with these two methods was tested prospectively in 59 additional CAD patients, and average end-diastolic wall stress was calculated at rest by measuring the principal radii, the thickness of the LV segments, and the estimated LVEDP. The results were compared to the wall stress that was calculated using catheter-measured LVEDP. Linear regression analysis was performed to assess the relationships between calculated wall stress using Dopplerestimated LVEDP (WSEP) and calculated wall stress using catheter-measured LVEDP (WSMP). Results: The results showed that LVEDP had a strong correlation to the lateral E/Ea (r = 0.85; P < 0.001) and medial E/Ea ratios (r = 0.73; P < 0.001). No significant differences were found between the WSEP and WSMP. There were highly significant correlations (at least r = 0.85, P < 0.001) between the WSMP and WSEP at all the myocardial sites. Conclusions: The current data demonstrate that the lateral E/Ea ratio obtained by Doppler echocardiography and color-TDI is a powerful estimator of LVEDP in CAD patients and provides pressure information required for noninvasive quantification of LV myocardial wall stress with reasonable accuracy in diastole.

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“…Following acquisition of the images and subsequent processing, end‐systolic stress (ESS) was computed for all the patients as previously described by our laboratory 13 …”

Section: Methodsmentioning

confidence: 99%

Aortic Valve Replacement for Aortic Insufficiency: Valve Type as a Determinant of Systolic Strain Recovery

Pomerantz¹,

Krock²,

Wollmuth³

et al. 2005

J Cardiac Surgery

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Severe aortic insufficiency and normal systolic function: determining regional left ventricular wall stress by finite-element analysis

Cited by 22 publications

References 23 publications

Evaluation of left anterior descending coronary artery stenosis severity from myocardial end‐diastolic wall stress estimated by tissue‐Doppler imaging

Evaluation of left anterior descending coronary artery stenosis severity from myocardial end‐diastolic wall stress estimated by tissue‐Doppler imaging

Estimation of LV End‐Diastolic Pressure Using Color‐TDI and Its Application to Noninvasive Quantification of Myocardial Wall Stress

Aortic Valve Replacement for Aortic Insufficiency: Valve Type as a Determinant of Systolic Strain Recovery

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