1
|
Sachdeva S, Molossi S, Reaves-O’Neal D, Masand P, Doan TT. Wall motion assessment by feature tracking in pediatric patients with coronary anomalies undergoing dobutamine stress CMR. Front Cardiovasc Med 2024; 11:1380630. [PMID: 38919544 PMCID: PMC11196760 DOI: 10.3389/fcvm.2024.1380630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024] Open
Abstract
Background Left ventricular (LV) wall motion assessment is an important adjunct in addition to perfusion defects in assessing ischemic changes. This study aims to investigate the feasibility and utility of performing feature tracking (FT) in pediatric patients with coronary anomalies undergoing dobutamine stress CMR to assess wall motion abnormalities (WMA) and perfusion defects. Method This is a retrospective study where 10 patients with an inducible first-pass perfusion (FPP) defect and 10 without were selected. Global LV circumferential strain/strain rate (GCS/GCSR) was measured at rest and at peak stress (systole and diastole) using a commercially available feature tracking software. Peak GCS and GCSR were compared to indexed wall motion score (WMSI) between groups with and without FPP defect and in subjects with and without WMA. Results The median age of patients was 13.5 years (Q1, 11 years; Q3, 15 years). Five subjects had qualitatively WMA at peak stress. A moderate correlation of GCS with WMSI at peak stress (0.48, p = 0.026) and a significant difference between GCS at rest and stress in patients with no inducible WMA (p = 0.007) were seen. No significant difference was noted in GCS between rest and stress in patients with WMA (p = 0.13). There was a larger absolute GCS/GCSR at peak stress in subjects with no inducible FPP defect or WMA. Conclusion Smaller absolute GCS and a lack of significant change in GCS at peak stress in those with inducible WMA or perfusion defect are suggestive of compromised LV deformation in subjects with inducible WMA. Given these findings, GCS derived from CMR-FT may be used to objectively assess WMA in pediatric patients undergoing stress CMR.
Collapse
Affiliation(s)
- Shagun Sachdeva
- Pediatric Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Silvana Molossi
- Pediatric Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Dana Reaves-O’Neal
- Pediatric Cardiology, Baylor College of Medicine, Houston, TX, United States
| | - Prakash Masand
- Pediatric Radiology, Baylor College of Medicine, Houston, TX, United States
| | - Tam T. Doan
- Pediatric Cardiology, Baylor College of Medicine, Houston, TX, United States
| |
Collapse
|
2
|
Harbo MB, Stokke MK, Sjaastad I, Espe EKS. One step closer to myocardial physiology: From PV loop analysis to state-of-the-art myocardial imaging. Acta Physiol (Oxf) 2022; 234:e13759. [PMID: 34978759 DOI: 10.1111/apha.13759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/14/2021] [Accepted: 01/01/2022] [Indexed: 11/29/2022]
Abstract
Recent advances in cardiac imaging have revitalized the assessment of fundamental physiological concepts. In the field of cardiac physiology, invasive measurements with pressure-volume (PV) loops have served as the gold standard methodology for the characterization of left ventricular (LV) function. From PV loop data, fundamental aspects of LV chamber function are derived such as work, efficiency, stiffness and contractility. However, the parametrization of these aspects is limited because of the need for invasive procedures. Through the utilization of recent advances in echocardiography, magnetic resonance imaging and positron emission tomography, it has become increasingly feasible to quantify these fundamental aspects of LV function non-invasively. Importantly, state-of-the-art imaging technology enables direct assessment of myocardial performance, thereby extending functional assessment from the net function of the LV chamber, as is done with PV loops, to the myocardium itself. With a strong coupling to underlying myocardial physiology, imaging measurements of myocardial work, efficiency, stiffness and contractility could represent the next generation of functional parameters. The purpose of this review is to discuss how the new imaging parameters of myocardial work, efficiency, stiffness and contractility can bring cardiac physiologists, researchers and clinicians alike one step closer to underlying myocardial physiology.
Collapse
Affiliation(s)
- Markus Borge Harbo
- Institute for Experimental Medical Research Oslo University Hospital and University of Oslo Oslo Norway
- K.G. Jebsen Center for Cardiac Research University of Oslo Oslo Norway
| | - Mathis Korseberg Stokke
- Institute for Experimental Medical Research Oslo University Hospital and University of Oslo Oslo Norway
- K.G. Jebsen Center for Cardiac Research University of Oslo Oslo Norway
- Department of Cardiology Oslo University Hospital Rikshospitalet Oslo Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research Oslo University Hospital and University of Oslo Oslo Norway
- K.G. Jebsen Center for Cardiac Research University of Oslo Oslo Norway
| | - Emil Knut Stenersen Espe
- Institute for Experimental Medical Research Oslo University Hospital and University of Oslo Oslo Norway
- K.G. Jebsen Center for Cardiac Research University of Oslo Oslo Norway
| |
Collapse
|
3
|
Gruca MM, Cheema B, Garg G, Ryan J, Thomas JD, Rigolin VH, Zielinski AR, Puthumana JJ. Strain echocardiography to describe left ventricular function pre- and postexercise in elite basketball athletes: A feasibility study. Echocardiography 2021; 38:1165-1172. [PMID: 34028863 DOI: 10.1111/echo.15121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/15/2021] [Accepted: 05/07/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Elite athletes show structural cardiac changes as an adaptation to exercise. Studies examining strain in athletes have largely analyzed images at rest only. There is little data available regarding the change in strain with exercise. Our objectives were: to investigate the feasibility of strain analysis in athletes at peak exercise, to determine the normal range of left ventricular (LV) global longitudinal strain (GLS) within this population postexercise, to describe how LV GLS changes with exercise, and to determine whether any clinical characteristics correlate with the change in GLS that occurs with exercise. METHODS We conducted a cross-sectional study on elite athletes who participated in the 2016-2018 National Basketball Association Draft Combines. Echocardiograms were obtained at rest and after completing a treadmill stress test to maximal exertion or completion of Bruce protocol. Primary outcomes included GLS obtained at rest and peak exercise. Secondary outcome was the change in GLS between rest and exercise. Univariate relationships between various clinical characteristics and our secondary outcome were analyzed. RESULTS Our final cohort (n = 111) was all male and 92/111 (82.9%) were African American. Mean GLS magnitude increased in response to exercise (-17.6 ± 1.8 vs -19.2 ± 2.6, P < .0001). Lower resting heart rates (r = .22, P = .02) and lower heart rates at peak exercise (r = .21, P = .03) correlated with the increase in LV GLS from exercise. CONCLUSIONS Strain imaging is technically feasible to obtain among elite basketball athletes at peak exercise. Normative strain response to exercise from this study may help identify abnormal responses to exercise in athletes.
Collapse
Affiliation(s)
- Martin M Gruca
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Baljash Cheema
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Gaurang Garg
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Juliet Ryan
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - James D Thomas
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Vera H Rigolin
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | |
Collapse
|
4
|
Fitzgerald BT, Logan JK, Weldon A, Kwon A, Scalia IG, Scalia GM. The prognostic value of estimating stroke volume before and after exercise during treadmill stress echocardiography. Echocardiography 2020; 37:1809-1819. [PMID: 32949039 DOI: 10.1111/echo.14863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/21/2020] [Accepted: 08/29/2020] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Stress echocardiography (SE) is an established technique for assessment of coronary artery disease (CAD) which is difficult to perform and interpret. Left ventricular stroke volume (SV) is readily estimated with Doppler echocardiography. It can be affected by myocardial ischemia, with possible adjunctive value during SE. METHODS Patients underwent Bruce protocol SE with SV estimated before and after maximal treadmill exertion post routine regional wall analysis. Incremental change in SV (ΔSV) with exercise was measured. RESULTS A derivation cohort (n = 273) was established to test the hypothesis. An optimal cutoff for detection on inducible ischemia was ΔSV ≤ +10 mL. The validation cohort of consecutive patients (n = 1093, 376 [34%] female; age 59 ± 12 years) were followed clinically after SE for 20 460 patient-months. There were 1000 patients with nonischemic SE, and 93 patients with studies suggestive of myocardial ischemia. Secondary analysis yielded 831 patients with a normal exercise response (ΔSV > +10 mL) and 192 with an abnormal ΔSV ≤ +10 mL. Time to first combined adverse cardiac event (composite of angina, acute coronary syndrome, cardiac revascularization, worsening New York Heart Association (NYHA) class, a reduction in EF, and cardiovascular death) was analyzed and adjusted using Cox proportional hazards regression. The hazard ratio for an adverse event with an abnormal ΔSV response (≤10 mL) was 10.3 (95% confidence intervals 5.6-19.1, P < .0001). CONCLUSIONS Stroke volume assessment during SE is feasible and readily performed. It is simple, practical, and has incremental diagnostic and prognostic value when added to exercise regional wall-motion analysis.
Collapse
Affiliation(s)
- Benjamin T Fitzgerald
- GenesisCare Cardiology, Auchenflower, QLD, Australia.,The Wesley Hospital, Auchenflower, QLD, Australia.,The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Jelena K Logan
- GenesisCare Cardiology, Auchenflower, QLD, Australia.,The Wesley Hospital, Auchenflower, QLD, Australia
| | - Ashleigh Weldon
- GenesisCare Cardiology, Auchenflower, QLD, Australia.,The Wesley Hospital, Auchenflower, QLD, Australia
| | - Agatha Kwon
- GenesisCare Cardiology, Auchenflower, QLD, Australia.,The Wesley Hospital, Auchenflower, QLD, Australia
| | | | - Gregory M Scalia
- GenesisCare Cardiology, Auchenflower, QLD, Australia.,The Wesley Hospital, Auchenflower, QLD, Australia.,The Prince Charles Hospital, Brisbane, QLD, Australia.,University of Queensland, Brisbane, QLD, Australia
| |
Collapse
|
5
|
Singh A, Voss WB, Lentz RW, Thomas JD, Akhter N. The Diagnostic and Prognostic Value of Echocardiographic Strain. JAMA Cardiol 2019; 4:580-588. [DOI: 10.1001/jamacardio.2019.1152] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Arushi Singh
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Robert W. Lentz
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - James D. Thomas
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Nausheen Akhter
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| |
Collapse
|
6
|
Gupta K, Kakar TS, Gupta A, Singh A, Gharpure N, Aryal S, Hawi R, Lloyd SG, Booker J, Hage FG, Prabhu SD, Nanda NC, Bajaj NS. Role of left ventricle deformation analysis in stress echocardiography for significant coronary artery disease detection: A diagnostic study meta-analysis. Echocardiography 2019; 36:1084-1094. [PMID: 31116467 DOI: 10.1111/echo.14365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/27/2019] [Accepted: 04/24/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND We compared the diagnostic accuracy of longitudinal strain (LS) imaging during stress echocardiography with visual assessment of wall motion (WM) for detecting significant coronary artery disease (CAD). METHODS Our systematic search included studies reporting diagnostic measures for LS imaging and visual assessment of WM for detecting significant CAD during stress echocardiography. Summary diagnostic accuracy measures including area under the curve (AUC), sensitivity, specificity, diagnostic odds ratio (DOR), and likelihood ratios (LRs) were estimated. RESULTS In thirteen studies with 978 patients, ten studies used invasive coronary angiography as the reference standard. Pooled AUC for diagnosing significant CAD was 0.92 (95% confidence interval [CI] 0.89-0.94) for LS imaging as compared to 0.83 (95% CI 0.80-0.86), P < 0.001 for visual assessment of WM. LS imaging had higher sensitivity (88% [95% CI 84-92] vs 74% [95% CI 68-80], P < 0.001) and comparable specificity to visual assessment of WM (80% [95% CI 72-87] vs 83% [95% CI 74-90], P = 0.592). The DOR for LS imaging and visual assessment of WM was 31 and 15, P = 0.254, respectively. The positive LR was 4.5 for both; negative LR was 0.14 and 0.31, P = 0.002 for LS imaging and visual assessment of WM, respectively. CONCLUSIONS Longitudinal strain imaging during stress echocardiography has better diagnostic accuracy for detecting significant CAD as compared to visual assessment of WM. Studies using larger sample size and standardized techniques of strain measurement are required to further ascertain the added advantage of strain measurement over visual assessment alone.
Collapse
Affiliation(s)
- Kartik Gupta
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Tanya S Kakar
- Department of Internal Medicine, William Beaumont Hospital, Royal Oak, Michigan
| | - Ankur Gupta
- Division of Cardiology, Department of Medicine, University of Texas Southwestern, Dallas, Texas
| | - Amitoj Singh
- Department of Noninvasive Cardiac Imaging, Brigham and Women's Hospital, Boston, Massachusetts
| | - Nitin Gharpure
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Sudeep Aryal
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Riem Hawi
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama.,Section of Cardiology, Birmingham Veterans Affair Medical Center, Birmingham, Alabama
| | - Steven G Lloyd
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama.,Section of Cardiology, Birmingham Veterans Affair Medical Center, Birmingham, Alabama
| | - Julian Booker
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Fadi G Hage
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama.,Section of Cardiology, Birmingham Veterans Affair Medical Center, Birmingham, Alabama
| | - Sumanth D Prabhu
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama.,Section of Cardiology, Birmingham Veterans Affair Medical Center, Birmingham, Alabama
| | - Navin C Nanda
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Navkaranbir S Bajaj
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama.,Section of Cardiology, Birmingham Veterans Affair Medical Center, Birmingham, Alabama.,Division of Molecular Imaging and Therapeutics, Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama
| |
Collapse
|
7
|
Prognostic Implications of Blunted Feature-Tracking Global Longitudinal Strain During Vasodilator Cardiovascular Magnetic Resonance Stress Imaging. JACC Cardiovasc Imaging 2019; 13:58-65. [PMID: 31005520 DOI: 10.1016/j.jcmg.2019.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The purpose of this study was to determine the prognostic value of feature-tracking global longitudinal strain (GLS) measured during vasodilator stress cardiac magnetic resonance (CMR) imaging. BACKGROUND Prior studies have suggested that blunted myocardial strain during dobutamine stress echocardiography may be associated with adverse prognosis. Recent developments in CMR feature-tracking techniques now allow assessment of strain in clinical practice using standard cine images without specialized pulse sequences or complex post-processing. Whether feature-tracking GLS measured during vasodilator stress provides independent and incremental prognostic data is unclear. METHODS Consecutive patients undergoing stress perfusion CMR were prospectively enrolled (n = 535). Feature-tracking stress GLS was measured immediately after regadenoson perfusion. Patients were followed for major adverse cardiac events (MACE): death, nonfatal myocardial infarction, heart failure hospitalization, sustained ventricular tachycardia, and late revascularization. Cox proportional hazards regression modeling was used to examine the association between stress GLS and MACE. The incremental prognostic value of stress GLS was assessed in nested models. RESULTS Over a median follow-up of 1.5 years, 82 patients experienced MACE. By Kaplan-Meier analysis, patients with stress GLS ≥ median (-19%) had significantly reduced event-free survival compared with those with stress GLS < median (log-rank p < 0.001). Stress GLS was significantly associated with risk of MACE after adjustment for clinical and imaging risk factors including ischemia, ejection fraction, and late gadolinium enhancement (hazard ratio: 1.267; p < 0.001). Addition of stress GLS into a model with clinical and imaging predictors resulted in significant increase in the C-index (from 0.80 to 0.85; p = 0.031) and a continuous net reclassification improvement of 0.898 (95% confidence interval: 0.565 to 1.124). CONCLUSIONS Feature-tracking stress GLS measured during vasodilator stress CMR is an independent predictor of MACE in patients with known or suspected coronary artery disease, incremental to common clinical and imaging risk factors. These findings suggest a role for feature-tracking derived stress GLS in identifying patients at highest risk of adverse events following stress CMR.
Collapse
|
8
|
Diagnosis of Heart Failure With Preserved Ejection Fraction: Machine Learning of Spatiotemporal Variations in Left Ventricular Deformation. J Am Soc Echocardiogr 2018; 31:1272-1284.e9. [DOI: 10.1016/j.echo.2018.07.013] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 11/20/2022]
|
9
|
Jeffrey RR, Hamburger RF, Gooden-Ebanks J, Petersen JW. Speckle Tracking Echocardiography Identifies Impaired Longitudinal Strain as a Common Deficit in Various Cardiac Diseases. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2018. [DOI: 10.15212/cvia.2017.0040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
10
|
Masuda K. [4. Preparation of Heart Disease Models and Evaluation of Pathology Using Ultrasound Imaging]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2018; 74:200-207. [PMID: 29459548 DOI: 10.6009/jjrt.2018_jsrt_74.2.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kasumi Masuda
- Division of Functional Diagnostics, Osaka University Graduate School of Medicine
| |
Collapse
|
11
|
Gaibazzi N, Porter T, Lorenzoni V, Pontone G, De Santis D, De Rosa A, Guaricci AI. Effect of Coronary Revascularization on the Prognostic Value of Stress Myocardial Contrast Wall Motion and Perfusion Imaging. J Am Heart Assoc 2017; 6:JAHA.117.006202. [PMID: 28566297 PMCID: PMC5669203 DOI: 10.1161/jaha.117.006202] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background The assessment of myocardial perfusion (MP) and wall motion (WM) using contrast dipyridamole echocardiography (cSE‐WMP) improves the sensitivity to detect coronary artery disease and the stratification of cardiac events, but its long‐term value for fatal and nonfatal ischemic cardiac events, also with respect to patients undergoing revascularization or not, remains to be determined. Methods and Results One‐thousand three‐hundred and twenty‐nine patients with suspect or known CAD who underwent cSE‐WMP were followed for a median 5.5 years. The independent prognostic value of cSE‐WMP regarding cardiac death or nonfatal myocardial infarction was related to stress WM and MP, rest ejection fraction, clinical risk factors, and medications. Patients revascularized after cSE‐WMP were separately analyzed to determine whether the procedure influenced outcome and whether this depends on cSE‐WMP results. A total of 125 cardiac fatal and nonfatal ischemic events (9.4%) occurred during the follow‐up (61 deaths, 64 myocardial infarctions). The 5‐year event rate with normal MP and WM was 5.9%, 9.9% with isolated MP defects (normal WM), and 15.5% with both MP and WM abnormalities. In patients not undergoing revascularization (n=1111), reversible MP defects added discrimination value over WM response and clinical factors/medication data (P=0.001), while in the cohort undergoing revascularization (n=218), cSE‐WMP results did not influence outcome. Conclusions cSE‐WMP, with both contrast MP and WM assessments, provides independent, incremental prognostic information regarding ischemic cardiac events at 5 years in patients with known or suspected coronary artery disease. Revascularization reduces cardiac events after an abnormal cSE‐WMP, resulting in outcomes not different from those in patients with normal cSE‐WMP.
Collapse
|
12
|
Gunasekaran P, Panaich S, Briasoulis A, Cardozo S, Afonso L. Incremental Value of Two Dimensional Speckle Tracking Echocardiography in the Functional Assessment and Characterization of Subclinical Left Ventricular Dysfunction. Curr Cardiol Rev 2017; 13:32-40. [PMID: 27411342 PMCID: PMC5324318 DOI: 10.2174/1573403x12666160712095938] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 06/26/2016] [Accepted: 06/29/2016] [Indexed: 02/01/2023] Open
Abstract
Subclinical left ventricular (LV) dysfunction refers to subtle abnormalities in LV function which typically precede a reduction in the left ventricular ejection fraction (LVEF). The assessment of myocardial function using LVEF, a radial metric of systolic function, is subject to load dependence, intra-observer and inter-observer variability. Reductions in LVEF typically manifest late in the disease process thus compromising the ability to intervene before irreversible impairment of systolic performance sets in. 2-Dimensional speckle tracking echocardiography (2D-STE), a novel strain imaging modality has shown promise as a sensitive indicator of myocardial contractility. It arms the clinician with a powerful and practical tool to rapidly quantify cardiac mechanics, circumventing several inherent limitations of conventional echocardiography. This article highlights the incremental utility of 2D-STE in the detection of subclinical LV dysfunction.
Collapse
Affiliation(s)
| | | | | | | | - Luis Afonso
- Division of Cardiology, Wayne State University, Detroit Medical Center, 3990 John R, 8-Brush, Harper University Hospital, Detroit, Michigan-48201. United States
| |
Collapse
|
13
|
Rösner A, Schirmer H, Iqbal A, Bijnens B, Avenarius D, Malm S. Assessment of myocardial ischemia by strain dobutamine stress echocardiography and cardiac magnetic resonance perfusion imaging before and after coronary artery bypass grafting. Echocardiography 2017; 34:557-566. [DOI: 10.1111/echo.13471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
| | - Henrik Schirmer
- University Hospital North Norway; Tromsø Norway
- Department of Clinical Medicine; University of Tromsø, The Arctic University; Tromsø Norway
| | - Amjid Iqbal
- University Hospital North Norway; Tromsø Norway
| | - Bart Bijnens
- ICREA-Universitat Pompeu Fabra; Barcelona Spain
- K.U. Leuven; Leuven Belgium
| | | | - Siri Malm
- University Hospital North Norway; Tromsø Norway
| |
Collapse
|
14
|
Uusitalo V, Luotolahti M, Pietilä M, Wendelin-Saarenhovi M, Hartiala J, Saraste M, Knuuti J, Saraste A. Two-Dimensional Speckle-Tracking during Dobutamine Stress Echocardiography in the Detection of Myocardial Ischemia in Patients with Suspected Coronary Artery Disease. J Am Soc Echocardiogr 2016; 29:470-479.e3. [DOI: 10.1016/j.echo.2015.12.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 11/28/2022]
|
15
|
Sampaio F, Pimenta J. Left ventricular function assessment in cirrhosis: Current methods and future directions. World J Gastroenterol 2016; 22:112-125. [PMID: 26755864 PMCID: PMC4698479 DOI: 10.3748/wjg.v22.i1.112] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/29/2015] [Accepted: 10/13/2015] [Indexed: 02/06/2023] Open
Abstract
Cirrhotic cardiomyopathy has been defined as a chronic cardiac dysfunction in patients with cirrhosis characterized by impaired contractile responsiveness to stress and/or altered diastolic relaxation with electrophysiological abnormalities in the absence of other known cardiac disease. Non-invasive cardiovascular imaging modalities play a major role in unmasking systolic and diastolic dysfunction in patients with cirrhosis. Echocardiography has been the most commonly used modality for assessing myocardial function in these patients. Conventional echocardiographic indices rely on several assumptions that may limit their applicability in patients with a hyperdynamic circulation. Newer imaging modalities may contribute to a more accurate diagnosis of cardiovascular abnormalities in cirrhotic patients, thereby influencing clinical management. We aimed to review the different non-invasive imaging technologies currently used for assessing left ventricular systolic and diastolic function in cirrhosis, as well as to describe new imaging modalities with potential clinical applicability in the near future.
Collapse
|
16
|
Early prediction of myocardial viability after acute myocardial infarction by two-dimensional speckle tracking imaging. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2015; 12:474-81. [PMID: 26512237 PMCID: PMC4605941 DOI: 10.11909/j.issn.1671-5411.2015.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Identifying the transmural extent of myocardial necrosis and the degree of myocardial viability in acute myocardial infarction (AMI) is important clinically. The aim of this study was to assess myocardial viability using two-dimensional speckle tracking imaging (2D-STI) in patients with AMI. Methods 2D-STI was performed at initial presentation, three days, and six months after primary percutaneous coronary intervention (PCI) in 30 patients with AMI, who had a left anterior descending coronary artery (LAD) culprit lesion. In addition, 20 patients who had minimal stenotic lesions (< 30% stenosis) on coronary angiography were also included in the control group. At six months dobutamine echocardiography was performed for viability assessment in seven segments of the LAD territory. According to the recovery of wall motion abnormality, segments were classified as viable or non-viable. Results A total of 131 segments were viable, and 44 were nonviable. Multivariate analysis revealed significant differences between the viable and nonviable segments in the peak systolic strain, the peak systolic strain rate at initial presentation, and peak systolic strain rate three days after primary PCI. Among these, the initial peak systolic strain rate had the highest predictive value for myocardial viability (hazard ratio: 31.22, P < 0.01). Conclusions 2D-STI is feasible for assessing myocardial viability, and the peak systolic strain rate might be the most reliable predictor of myocardial viability in patients with AMI.
Collapse
|
17
|
Pokharel P, Fujikura K, Bella JN. Clinical applications and prognostic implications of strain and strain rate imaging. Expert Rev Cardiovasc Ther 2015; 13:853-66. [DOI: 10.1586/14779072.2015.1056163] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
18
|
Rhea IB, Uppuluri S, Sawada S, Schneider BP, Feigenbaum H. Incremental Prognostic Value of Echocardiographic Strain and Its Association With Mortality in Cancer Patients. J Am Soc Echocardiogr 2015; 28:667-73. [DOI: 10.1016/j.echo.2015.02.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Indexed: 12/13/2022]
|
19
|
Stöhr EJ, Stembridge M, Esformes JI. In vivohuman cardiac shortening and lengthening velocity is region dependent and not coupled with heart rate: ‘longitudinal’ strain rate markedly underestimates apical contribution. Exp Physiol 2015; 100:507-18. [DOI: 10.1113/ep085081] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 03/04/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Eric J. Stöhr
- Cardiff School of Sport; , Cardiff Metropolitan University; Cardiff UK
| | - Mike Stembridge
- Cardiff School of Sport; , Cardiff Metropolitan University; Cardiff UK
| | | |
Collapse
|
20
|
Gardin JM. Can Calcium Supplementation Improve Stress Echocardiography? JACC Cardiovasc Imaging 2015; 8:397-399. [DOI: 10.1016/j.jcmg.2014.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 11/26/2022]
|
21
|
Rösner A, Barbosa D, Aarsæther E, Kjønås D, Schirmer H, D'hooge J. The influence of frame rate on two-dimensional speckle-tracking strain measurements: a study on silico-simulated models and images recorded in patients. Eur Heart J Cardiovasc Imaging 2015; 16:1137-47. [DOI: 10.1093/ehjci/jev058] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/18/2015] [Indexed: 12/17/2022] Open
|
22
|
|
23
|
Prognostic Value of Normal Exercise Echocardiography in a One-Year Follow-up. RAZAVI INTERNATIONAL JOURNAL OF MEDICINE 2014. [DOI: 10.5812/rijm.22075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
24
|
Speckle-tracking and tissue-Doppler stress echocardiography in arterial hypertension: a sensitive tool for detection of subclinical LV impairment. BIOMED RESEARCH INTERNATIONAL 2014; 2014:472562. [PMID: 25389528 PMCID: PMC4214170 DOI: 10.1155/2014/472562] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 08/06/2014] [Indexed: 01/19/2023]
Abstract
Early diagnosis of cardiac alterations in hypertensive heart disease is still challenging. Since such patients might have depressed global LV systolic strain or strain rate when EF is still normal, speckle-tracking echocardiography (STE) and tissue-Doppler imaging (TDI) combined with stress echocardiography might improve early diagnosis of cardiac alterations. In this prospective study standard 2D Doppler echocardiography, STE, and TDI were performed at rest and during bicycle exercise in 92 consecutive patients—46 hypertensive subjects with normal ejection fraction and 46 healthy controls. STE and TDI were used to measure global peak systolic LV circumferential strain (CS), longitudinal strain (LS), and longitudinal strain rate (SR). Mean arterial blood pressure was significantly higher in hypertensive patients at rest (100.8 mmHg SD 13.5 mmHg; P = 0.002) and during physical exercise testing (124.2 mmHg SD 13.4 mmHg; P = 0.003). Hypertensive patients had significantly reduced values of systolic CS (P = 0.001), LS (P = 0.014), and SR (P < 0.001) at rest as well as during physical exercise—CS (P < 0.001), LS (P < 0.001), and SR (P < 0.001). Using STE and TDI, reduced LV systolic strain and strain rate consistent with early cardiac alterations can be detected in patients with arterial hypertension. These findings were evident at rest and markedly pronounced during exercise echocardiography.
Collapse
|
25
|
Nagy AI, Sahlen A, Manouras A, Henareh L, da Silva C, Gunyeli E, Apor AA, Merkely B, Winter R. Combination of contrast-enhanced wall motion analysis and myocardial deformation imaging during dobutamine stress echocardiography. Eur Heart J Cardiovasc Imaging 2014; 16:88-95. [DOI: 10.1093/ehjci/jeu171] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
26
|
Gitsioudis G, Katus HA, Korosoglou G. Assessment of coronary artery disease using coronary computed tomography angiography and biochemical markers. World J Cardiol 2014; 6:663-670. [PMID: 25068026 PMCID: PMC4110614 DOI: 10.4330/wjc.v6.i7.663] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/16/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
Chronic inflammatory mechanisms in the arterial wall lead to atherosclerosis, and include endothelial cell damage, inflammation, apoptosis, lipoprotein deposition, calcification and fibrosis. Cardiac computed tomography angiography (CCTA) has been shown to be a promising tool for non-invasive assessment of theses specific compositional and structural changes in coronary arteries. This review focuses on the technical background of CCTA-based quantitative plaque characterization. Furthermore, we discuss the available evidence for CCTA-based plaque characterization and the potential role of CCTA for risk stratification of patients with coronary artery disease.
Collapse
|
27
|
Parker KM, Clark AP, Goodman NC, Glover DK, Holmes JW. Comparison of quantitative wall-motion analysis and strain for detection of coronary stenosis with three-dimensional dobutamine stress echocardiography. Echocardiography 2014; 32:349-60. [PMID: 24815588 DOI: 10.1111/echo.12636] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Quantitative analysis of wall motion from three-dimensional (3D) dobutamine stress echocardiography (DSE) could provide additional diagnostic information not available from qualitative analysis. In this study, we compare the effectiveness of 3D fractional shortening (3DFS), a measure of wall motion computed from 3D echocardiography (3DE), to strain and strain rate measured with sonomicrometry for detecting critical stenoses during DSE. METHODS Eleven open-chest dogs underwent DSE both with and without a critical stenosis. 3DFS was measured from 3DE images acquired at peak stress. 3DFS was normalized by subtracting average 3DFS during control peak stress (∆3DFS). Strains in the perfusion defect (PD) were measured from sonomicrometry, and PD size and location were measured with microspheres. RESULTS A ∆3DFS abnormality indicated the presence of a critical stenosis with high sensitivity and specificity (88% and 100%, respectively), and ∆3DFS abnormality size correlated with PD size (R(2) = 0.54). The sensitivity and specificity for ∆3DFS were similar to that for area strain (88%, 100%) and circumferential strain and strain rate (88%, 92% and 88%, 86%, respectively), while longitudinal strain and strain rate were less specific. ∆3DFS correlated significantly with both coronary flow reserve (R(2) = 0.71) and PD size (R(2) = 0.97), while area strain correlated with PD size only (R(2) = 0.67), and other measures were not significantly correlated with flow reserve or PD size. CONCLUSION Quantitative wall-motion analysis using ∆3DFS is effective for detecting critical stenoses during DSE, performing similar to 3D strain, and provides potentially useful information on the size and location of a perfusion defect.
Collapse
Affiliation(s)
- Katherine M Parker
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
| | | | | | | | | |
Collapse
|
28
|
Bikiri E, Mereles D, Voss A, Greiner S, Hess A, Buss SJ, Hofmann NP, Giannitsis E, Katus HA, Korosoglou G. Dobutamine stress cardiac magnetic resonance versus echocardiography for the assessment of outcome in patients with suspected or known coronary artery disease. Are the two imaging modalities comparable? Int J Cardiol 2014; 171:153-60. [DOI: 10.1016/j.ijcard.2013.11.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/12/2013] [Accepted: 11/17/2013] [Indexed: 12/01/2022]
|
29
|
Ternacle J, Gallet R, Champagne S, Teiger E, Gellen B, Dubois Randé JL, Gueret P, Lim P. Changes in Three-Dimensional Speckle-Tracking–Derived Myocardial Strain during Percutaneous Coronary Intervention. J Am Soc Echocardiogr 2013; 26:1444-9. [DOI: 10.1016/j.echo.2013.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Indexed: 01/21/2023]
|
30
|
Echocardiography in the era of multimodality cardiovascular imaging. BIOMED RESEARCH INTERNATIONAL 2013; 2013:310483. [PMID: 23878804 PMCID: PMC3708397 DOI: 10.1155/2013/310483] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 06/11/2013] [Indexed: 12/17/2022]
Abstract
Echocardiography remains the most frequently performed cardiac imaging investigation and is an invaluable tool for detailed and accurate evaluation of cardiac structure and function. Echocardiography, nuclear cardiology, cardiac magnetic resonance imaging, and cardiovascular-computed tomography comprise the subspeciality of cardiovascular imaging, and these techniques are often used together for a multimodality, comprehensive assessment of a number of cardiac diseases. This paper provides the general cardiologist and physician with an overview of state-of-the-art modern echocardiography, summarising established indications as well as highlighting advances in stress echocardiography, three-dimensional echocardiography, deformation imaging, and contrast echocardiography. Strengths and limitations of echocardiography are discussed as well as the growing role of real-time three-dimensional echocardiography in the guidance of structural heart interventions in the cardiac catheter laboratory.
Collapse
|
31
|
Narula J, Nakano M, Virmani R, Kolodgie FD, Petersen R, Newcomb R, Malik S, Fuster V, Finn AV. Histopathologic characteristics of atherosclerotic coronary disease and implications of the findings for the invasive and noninvasive detection of vulnerable plaques. J Am Coll Cardiol 2013; 61:1041-51. [PMID: 23473409 DOI: 10.1016/j.jacc.2012.10.054] [Citation(s) in RCA: 357] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 10/25/2012] [Accepted: 10/28/2012] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The goal of this study was to identify histomorphologic characteristics of atherosclerotic plaques and to determine the amenability of some of these components to be used as markers for invasive and noninvasive imaging. BACKGROUND Rupture of the atherosclerotic plaques is responsible for the majority of acute coronary events, and the culprit lesions demonstrate distinct histopathologic features. It has been tacitly believed that plaque rupture (PR) is associated with angiographically minimally occlusive lesions. METHODS We obtained 295 coronary atherosclerotic plaques, including stable (fibroatheroma [FA]; n = 105), vulnerable (thin-cap fibroatheroma [TCFA]; n = 88), and disrupted plaques (plaque rupture [PR]; n = 102) from the hearts of 181 men and 32 women who had died suddenly. The hierarchical importance of fibrous cap thickness, percent luminal stenosis, macrophage area, necrotic core area, and calcified plaque area was evaluated by using recursive partitioning analysis. Because clinical assessment of fibrous cap thickness is not possible by noninvasive imaging, it was excluded from the second set of partitioning analysis. RESULTS Thickness of the fibrous cap emerged as the best discriminator of plaque type; the cap thickness measured <55 μm in ruptured plaques, and all FA were associated with >84-μm cap thickness. Although the majority of TCFA were found in the 54- to 84-μm thickness group, those with <54-μm thickness were more likely to show <74% luminal stenosis (area under the curve: FA, 1.0; TCFA, 0.89; PR, 0.90). After exclusion of cap thickness, analysis of the plaque characteristics revealed macrophage infiltration and necrotic core to be the 2 best discriminators of plaque types (area under the curve: FA, 0.82; TCFA, 0.58; PR, 0.72). More than 75% cross-section area stenosis was seen in 70% of PR and 40% of TCFA; only 5% PR and 10% TCFA were <50% narrowed. CONCLUSIONS This postmortem study defines histomorphologic characteristics of vulnerable plaques, which may help develop imaging strategies for identification of such plaques in patients at a high risk of sustaining acute coronary events.
Collapse
Affiliation(s)
- Jagat Narula
- Mount Sinai School of Medicine, New York, New York 10029, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Elmayergi NH, Goodman JM, Lee LS, Sasson Z. Are measures of left ventricular systolic performance during low dose dobutamine stress echocardiograms repeatable over time? Int J Cardiovasc Imaging 2013; 29:1281-6. [PMID: 23589004 DOI: 10.1007/s10554-013-0219-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 04/07/2013] [Indexed: 11/30/2022]
Abstract
To establish the test-retest reliability and the normal dose-response relationship of echocardiographic measures of Left Ventricular (LV) contractile function to low dose dobutamine stress in healthy individuals. Thirty healthy volunteers (23 males, 7 females) with an average age of 38 ± 13 years underwent dobutamine stress echocardiography (DSE) (at successive doses of 0, 5, 10, and 20 mcg/kg/min) on two occasions, separated by 14 days. Ejection fraction (EF) was determined from 2D echocardiographic measures of left ventricular (LV) end diastolic and end systolic volumes. Longitudinal strain (S) and strain rate (SR) were measured using 2D speckle tracking analysis from three consecutive cardiac cycles. The Intraclass Correlation Coefficient (ICC) and the Coefficient of Variation (CV) were calculated to assess reliability and variability of the study population's EF, S, and SR responses to increasing doses of dobutamine. Left ventricular S and EF gradually increased with low doses of dobutamine but reached a plateau between 10 and 20 mcg/kg/min. Strain rate, however, gradually increases with each increasing dose of dobutamine. These responses were replicated on Day 2 with a high degree of reliability as determined from the ICC and low variability as determined from the CV, which fell within acceptable limits (<10 %). Left ventricular EF, S and SR can be measured during DSE with a high degree of test-retest reliability, and may be of clinical value when serial follow up of DSE measures of LV performance is indicated over time.
Collapse
Affiliation(s)
- Nader H Elmayergi
- Division of Cardiology, Mount Sinai Hospital, University of Toronto, 600 University Ave, Suite 1602, Toronto, ON, M5G 1X5, Canada.
| | | | | | | |
Collapse
|
33
|
Fihn SD, Gardin JM, Abrams J, Berra K, Blankenship JC, Dallas AP, Douglas PS, Foody JM, Gerber TC, Hinderliter AL, King SB, Kligfield PD, Krumholz HM, Kwong RYK, Lim MJ, Linderbaum JA, Mack MJ, Munger MA, Prager RL, Sabik JF, Shaw LJ, Sikkema JD, Smith CR, Smith SC, Spertus JA, Williams SV. 2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS guideline for the diagnosis and management of patients with stable ischemic heart disease: executive summary: a report of the American College of Cardiology Foundation/American Heart Association task force on practice guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. Circulation 2012. [PMID: 23182125 DOI: 10.1016/j.jacc.2012.07.013] [Citation(s) in RCA: 1227] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
34
|
Fihn SD, Gardin JM, Abrams J, Berra K, Blankenship JC, Dallas AP, Douglas PS, Foody JM, Gerber TC, Hinderliter AL, King SB, Kligfield PD, Krumholz HM, Kwong RYK, Lim MJ, Linderbaum JA, Mack MJ, Munger MA, Prager RL, Sabik JF, Shaw LJ, Sikkema JD, Smith CR, Smith SC, Spertus JA, Williams SV, Anderson JL. 2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS guideline for the diagnosis and management of patients with stable ischemic heart disease: a report of the American College of Cardiology Foundation/American Heart Association task force on practice guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. Circulation 2012; 126:e354-471. [PMID: 23166211 DOI: 10.1161/cir.0b013e318277d6a0] [Citation(s) in RCA: 465] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
35
|
Thorstensen A, Amundsen BH, Dalen H, Hala P, Kiss G, Aase SA, Torp H, Stoylen A. Strain rate imaging combined with wall motion analysis gives incremental value in direct quantification of myocardial infarct size. Eur Heart J Cardiovasc Imaging 2012; 13:914-21. [DOI: 10.1093/ehjci/jes070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
36
|
Heyde B, Cygan S, Choi HF, Lesniak-Plewinska B, Barbosa D, Elen A, Claus P, Loeckx D, Kaluzynski K, D'hooge J. Regional cardiac motion and strain estimation in three-dimensional echocardiography: a validation study in thick-walled univentricular phantoms. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2012; 59:668-682. [PMID: 22547278 DOI: 10.1109/tuffc.2012.2245] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Automatic quantification of regional left ventricular deformation in volumetric ultrasound data remains challenging. Many methods have been proposed to extract myocardial motion, including techniques using block matching, phase-based correlation, differential optical flow methods, and image registration. Our lab previously presented an approach based on elastic registration of subsequent volumes using a B-spline representation of the underlying transformation field. Encouraging results were obtained for the assessment of global left ventricular function, but a thorough validation on a regional level was still lacking. For this purpose, univentricular thick-walled cardiac phantoms were deformed in an experimental setup to locally assess strain accuracy against sonomicrometry as a reference method and to assess whether regions containing stiff inclusions could be detected. Our method showed good correlations against sonomicrometry: r(2) was 0.96, 0.92, and 0.84 for the radial (ε(RR)), longitudinal (ε(LL)), and circumferential (ε(CC)) strain, respectively. Absolute strain errors and strain drift were low for ε(LL) (absolute mean error: 2.42%, drift: -1.05%) and ε(CC) (error: 1.79%, drift: -1.33%) and slightly higher for ε(RR) (error: 3.37%, drift: 3.05%). The discriminative power of our methodology was adequate to resolve full transmural inclusions down to 17 mm in diameter, although the inclusion-to-surrounding tissue stiffness ratio was required to be at least 5:2 (absolute difference of 39.42 kPa). When the inclusion-to-surrounding tissue stiffness ratio was lowered to approximately 2:1 (absolute difference of 22.63 kPa), only larger inclusions down to 27 mm in diameter could still be identified. Radial strain was found not to be reliable in identifying dysfunctional regions.
Collapse
Affiliation(s)
- Brecht Heyde
- Laboratory of Cardiovascular Imaging and Dynamics, University of Leuven (KU Leuven), Leuven, Belgium.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Strain-encoded cardiac magnetic resonance during high-dose dobutamine stress testing for the estimation of cardiac outcomes: comparison to clinical parameters and conventional wall motion readings. J Am Coll Cardiol 2011; 58:1140-9. [PMID: 21884952 DOI: 10.1016/j.jacc.2011.03.063] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 02/28/2011] [Accepted: 03/22/2011] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The purpose of this study was to determine the prognostic value of strain-encoded magnetic resonance imaging (SENC) during high-dose dobutamine stress cardiac magnetic resonance imaging (DS-MRI) compared with conventional wall motion readings. BACKGROUND Detection of inducible ischemia by DS-MRI on the basis of assessing cine images is subjective and depends on the experience of the readers, which may influence not only the diagnostic classification but also the risk stratification of patients with ischemic heart disease. METHODS In all, 320 consecutive patients with suspected or known coronary artery disease underwent DS-MRI, using a standard protocol in a 1.5T MR scanner. Wall motion abnormalities (WMA) and myocardial strain were assessed at baseline and during stress, and outcome data including cardiac deaths, nonfatal myocardial infarctions ("hard events"), and revascularization procedures performed >90 days after the MR scans were collected. RESULTS Thirty-five hard events occurred during a 28 ± 9 month follow-up period, including 10 cardiac deaths and 25 nonfatal myocardial infarctions, and 32 patients underwent coronary revascularization. Using a series of Cox proportional-hazards models, both resting and inducible WMA offered incremental information for the assessment of hard cardiac events compared to clinical variables (chi-square = 13.0 for clinical vs. chi-square = 26.1 by adding resting WMA, p < 0.001, vs. chi-square = 39.3 by adding inducible WMA, p < 0.001). Adding visual SENC or quantitative strain rate reserve to this model further improved the prediction of outcome (chi-square = 50.7 vs. chi-square = 52.5, p < 0.001 for both). In a subset of patients (n = 175) who underwent coronary angiography, SENC yielded significantly higher sensitivity for coronary artery disease detection (96% vs. 84%, p < 0.02), whereas specificity and accuracy were not significantly different (88% vs. 94% and 93% vs. 88%, p = NS for both). CONCLUSIONS Strain-encoded MRI aids the accurate identification of patients at high risk for future cardiac events and revascularization procedures, beyond the assessment of conventional atherogenic risk factors and resting or inducible WMA on cine images. (Strain-Encoded Cardiac Magnetic Resonance Imaging as an Adjunct for Dobutamine Stress Testing; NCT00758654).
Collapse
|
38
|
Mor-Avi V, Lang RM, Badano LP, Belohlavek M, Cardim NM, Derumeaux G, Galderisi M, Marwick T, Nagueh SF, Sengupta PP, Sicari R, Smiseth OA, Smulevitz B, Takeuchi M, Thomas JD, Vannan M, Voigt JU, Zamorano JL. Current and evolving echocardiographic techniques for the quantitative evaluation of cardiac mechanics: ASE/EAE consensus statement on methodology and indications endorsed by the Japanese Society of Echocardiography. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2011; 12:167-205. [PMID: 21385887 DOI: 10.1093/ejechocard/jer021] [Citation(s) in RCA: 676] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Echocardiographic imaging is ideally suited for the evaluation of cardiac mechanics because of its intrinsically dynamic nature. Because for decades, echocardiography has been the only imaging modality that allows dynamic imaging of the heart, it is only natural that new, increasingly automated techniques for sophisticated analysis of cardiac mechanics have been driven by researchers and manufacturers of ultrasound imaging equipment. Several such techniques have emerged over the past decades to address the issue of reader's experience and inter-measurement variability in interpretation. Some were widely embraced by echocardiographers around the world and became part of the clinical routine, whereas others remained limited to research and exploration of new clinical applications. Two such techniques have dominated the research arena of echocardiography: (1) Doppler-based tissue velocity measurements, frequently referred to as tissue Doppler or myocardial Doppler, and (2) speckle tracking on the basis of displacement measurements. Both types of measurements lend themselves to the derivation of multiple parameters of myocardial function. The goal of this document is to focus on the currently available techniques that allow quantitative assessment of myocardial function via image-based analysis of local myocardial dynamics, including Doppler tissue imaging and speckle-tracking echocardiography, as well as integrated back- scatter analysis. This document describes the current and potential clinical applications of these techniques and their strengths and weaknesses, briefly surveys a selection of the relevant published literature while highlighting normal and abnormal findings in the context of different cardiovascular pathologies, and summarizes the unresolved issues, future research priorities, and recommended indications for clinical use.
Collapse
|
39
|
Mor-Avi V, Lang RM, Badano LP, Belohlavek M, Cardim NM, Derumeaux G, Galderisi M, Marwick T, Nagueh SF, Sengupta PP, Sicari R, Smiseth OA, Smulevitz B, Takeuchi M, Thomas JD, Vannan M, Voigt JU, Zamorano JL. Current and evolving echocardiographic techniques for the quantitative evaluation of cardiac mechanics: ASE/EAE consensus statement on methodology and indications endorsed by the Japanese Society of Echocardiography. J Am Soc Echocardiogr 2011; 24:277-313. [PMID: 21338865 DOI: 10.1016/j.echo.2011.01.015] [Citation(s) in RCA: 858] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Echocardiographic imaging is ideally suited for the evaluation of cardiac mechanics because of its intrinsically dynamic nature. Because for decades, echocardiography has been the only imaging modality that allows dynamic imaging of the heart, it is only natural that new, increasingly automated techniques for sophisticated analysis of cardiac mechanics have been driven by researchers and manufacturers of ultrasound imaging equipment.Several such technique shave emerged over the past decades to address the issue of reader's experience and inter measurement variability in interpretation.Some were widely embraced by echocardiographers around the world and became part of the clinical routine,whereas others remained limited to research and exploration of new clinical applications.Two such techniques have dominated the research arena of echocardiography: (1) Doppler based tissue velocity measurements,frequently referred to as tissue Doppler or myocardial Doppler, and (2) speckle tracking on the basis of displacement measurements.Both types of measurements lend themselves to the derivation of multiple parameters of myocardial function. The goal of this document is to focus on the currently available techniques that allow quantitative assessment of myocardial function via image-based analysis of local myocardial dynamics, including Doppler tissue imaging and speckle-tracking echocardiography, as well as integrated backscatter analysis. This document describes the current and potential clinical applications of these techniques and their strengths and weaknesses,briefly surveys a selection of the relevant published literature while highlighting normal and abnormal findings in the context of different cardiovascular pathologies, and summarizes the unresolved issues, future research priorities, and recommended indications for clinical use.
Collapse
|
40
|
Affiliation(s)
- Brian D Hoit
- Harrington-McLaughlin Heart Vascular Institute, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA.
| |
Collapse
|
41
|
Hung CL, Verma A, Uno H, Shin SH, Bourgoun M, Hassanein AH, McMurray JJ, Velazquez EJ, Kober L, Pfeffer MA, Solomon SD. Longitudinal and circumferential strain rate, left ventricular remodeling, and prognosis after myocardial infarction. J Am Coll Cardiol 2011; 56:1812-22. [PMID: 21087709 DOI: 10.1016/j.jacc.2010.06.044] [Citation(s) in RCA: 231] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 06/11/2010] [Accepted: 06/14/2010] [Indexed: 01/03/2023]
Abstract
OBJECTIVES We sought to investigate the clinical prognostic value of longitudinal and circumferential strain (S) and strain rate (SR) in patients after high-risk myocardial infarction (MI). BACKGROUND Left ventricular (LV) contractile performance after MI is an important predictor of long-term outcome. Tissue deformation imaging might more closely reflect myocardial contractility than traditional measures of systolic functions. METHODS The VALIANT (Valsartan in Acute Myocardial Infarction Trial) Echo study enrolled 603 patients with LV dysfunction, heart failure, or both 5 days after MI. We measured global peak longitudinal S and systolic SR (SRs) from apical 4- and 2-chamber views and global circumferential S and SRs from parasternal short-axis view with speckle tracking software (Velocity Vector Imaging, Siemens, Inc., Mountain View, California). We related global S and SRs to LV remodeling at 20-month follow-up and to clinical outcomes. RESULTS Both longitudinal (mean: -5.1 ± 1.6 100/ms) and circumferential SRs (mean: -8.0 ± 2.8 100/ms) were predictive of death or hospital stay for heart failure (hazard ratio: 2.4, 95% confidence interval [CI]: 2.0 to 3.1, p < 0.001; hazard ratio: 1.3, 95% CI: 1.2 to 1.4, p < 0.001, respectively) after adjustment for clinical covariates by Cox proportional hazards, and longitudinal SRs further improved in predicting 18-month survivor on a model based on clinical and standard echocardiographic measures (increase in area under the receiver-operator characteristic curve: 0.13, p = 0.009). With multivariable logistic regression, circumferential SRs, but not longitudinal SRs, was strongly predictive of remodeling (odds ratio: 1.3, 95% CI: 1.1 to 1.4, p < 0.001). CONCLUSIONS Both longitudinal and circumferential SRs were independent predictors of outcomes after MI, whereas only circumferential SRs was predictive of remodeling, suggesting that preserved circumferential function might serve to restrain ventricular enlargement after MI.
Collapse
Affiliation(s)
- Chung-Lieh Hung
- Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Tsai WC, Liu YW, Huang YY, Lin CC, Lee CH, Tsai LM. Diagnostic Value of Segmental Longitudinal Strain by Automated Function Imaging in Coronary Artery Disease without Left Ventricular Dysfunction. J Am Soc Echocardiogr 2010; 23:1183-9. [DOI: 10.1016/j.echo.2010.08.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Indexed: 11/24/2022]
|
43
|
Korosoglou G, Elhmidi Y, Steen H, Schellberg D, Riedle N, Ahrens J, Lehrke S, Merten C, Lossnitzer D, Radeleff J, Zugck C, Giannitsis E, Katus HA. Prognostic value of high-dose dobutamine stress magnetic resonance imaging in 1,493 consecutive patients: assessment of myocardial wall motion and perfusion. J Am Coll Cardiol 2010; 56:1225-34. [PMID: 20883929 DOI: 10.1016/j.jacc.2010.06.020] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 04/30/2010] [Accepted: 06/15/2010] [Indexed: 12/30/2022]
Abstract
OBJECTIVES This study sought to determine the prognostic value of wall motion and perfusion assessment during high-dose dobutamine stress (DS) cardiac magnetic resonance imaging (MRI) in a large patient cohort. BACKGROUND DS-MRI offers the possibility to integrate myocardial perfusion and wall motion analysis in a single examination for the detection of coronary artery disease (CAD). METHODS A total of 1,493 consecutive patients with suspected or known CAD underwent DS-MRI, using a standard protocol in a 1.5-T magnetic resonance scanner. Wall motion and perfusion were assessed at baseline and during stress, and outcome data including cardiac death, nonfatal myocardial infarction ("hard events"), and "late" revascularization performed >90 days after the MR scans were collected during a 2 ± 1 year follow-up period. RESULTS Fifty-three hard events, including 14 cardiac deaths and 39 nonfatal infarctions, occurred during the follow-up period, whereas 85 patients underwent "late" revascularization. Using multivariable regression analysis, an abnormal result for wall motion or perfusion during stress yielded the strongest independent prognostic value for both hard events and late revascularization, clearly surpassing that of clinical and baseline magnetic resonance parameters (for wall motion: adjusted hazard ratio [HR] of 5.9 [95% confidence interval (CI): 2.5 to 13.6] for hard events and of 3.1 [95% CI: 1.7 to 5.6] for late revascularization, and for perfusion: adjusted HR of 5.4 [95% CI: 2.3 to 12.9] for hard events and of 6.2 [95% CI: 3.3 to 11.3] for late revascularization, p < 0.001 for all). CONCLUSIONS DS-MRI can accurately identify patients who are at increased risk for cardiac death and myocardial infarction, separating them from those with normal findings, who have very low risk for future cardiac events. (Prognostic Value of High Dose Dobutamine Stress Magnetic Resonance Imaging; NCT00837005).
Collapse
Affiliation(s)
- Grigorios Korosoglou
- Department of Cardiology, University of Heidelberg, Im Neuenheimer Feld 410, Heidelberg, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Mignot A, Donal E, Zaroui A, Reant P, Salem A, Hamon C, Monzy S, Roudaut R, Habib G, Lafitte S. Global Longitudinal Strain as a Major Predictor of Cardiac Events in Patients with Depressed Left Ventricular Function: A Multicenter Study. J Am Soc Echocardiogr 2010; 23:1019-24. [DOI: 10.1016/j.echo.2010.07.019] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Indexed: 01/06/2023]
|
45
|
Iwakura K, Okamura A, Koyama Y, Date M, Higuchi Y, Inoue K, Kimura R, Nagai H, Imai M, Toyoshima Y, Ozawa M, Ito N, Okazaki Y, Shibuya M, Omiya S, Takagi T, Morisawa D, Fujii K. Automated assessment of myocardial viability after acute myocardial infarction by global longitudinal peak strain on low-dose dobutamine stress echocardiography. Circ J 2010; 74:2158-65. [PMID: 20697179 DOI: 10.1253/circj.cj-10-0239] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Low-dose dobutamine stress echocardiography (DSE) assesses myocardial viability at the early stage of acute myocardial infarction (AMI), but its assessment is subjective and variable. Automated function image (AFI) determines global longitudinal peak strain (GLPS) based on tissue tracking technique. The ability of GLPS obtained by AFI during dobutamine stress to assess myocardial viability after AMI was investigated. METHODS AND RESULTS Low-dose DSE at day 3 in 23 consecutive patients with AMI was performed using Vivid 7 (GE Healthcare). Segmental longitudinal peak strain with AFI and obtained GLPS was analyzed. Wall motion score index (WMSI) by echocardiography 1 month later was determined. In 18 patients, left ventriculography was also performed at 3.2±1.5 months later to obtain left ventricular ejection fraction (LVEF) and regional wall motion (RWM, SD/chord). GLPS was improved during dobutamine infusion at 10 µg · kg(-1) · min(-1) (-12.9 ± 3.5% to -15.2 ± 3.6%, P=0.0004). GLPS during dobutamine stress showed good correlations with follow-up WMSI (R=0.47, P=0.02), with peak CK-MB (R = 0.52, P=0.01), with RWM (R = -0.48, P=0.04), and with LVEF (R = -0.54, P=0.02), whereas GLPS at baseline showed no correlations with them. Averaged segmental peak strain at baseline and during stress were correlated with follow-up WMSI (R = 0.50 and 0.43, respectively), but not with LVEF. CONCLUSIONS GLPS during dobutamine stress determined by AFI is a promising, objective index to assess myocardial viability on the early stage of AMI.
Collapse
Affiliation(s)
- Katsuomi Iwakura
- Division of Cardiology, Sakurabashi Watanabe Hospital, Osaka, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Stanton T, Marwick TH. Assessment of Subendocardial Structure and Function. JACC Cardiovasc Imaging 2010; 3:867-75. [DOI: 10.1016/j.jcmg.2010.05.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 04/28/2010] [Accepted: 05/04/2010] [Indexed: 10/19/2022]
|
47
|
Antoni ML, Mollema SA, Delgado V, Atary JZ, Borleffs CJW, Boersma E, Holman ER, van der Wall EE, Schalij MJ, Bax JJ. Prognostic importance of strain and strain rate after acute myocardial infarction. Eur Heart J 2010; 31:1640-7. [PMID: 20423918 DOI: 10.1093/eurheartj/ehq105] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
AIMS Recently, strain and strain rate have been introduced as novel parameters reflecting left ventricular (LV) function. The purpose of the current study was to assess the prognostic importance of strain and strain rate after acute myocardial infarction (AMI). METHODS AND RESULTS A total of 659 patients after AMI were evaluated. Baseline echocardiography was performed to assess LV function with traditional parameters and strain and strain rate. During follow-up, 51 patients (8%) reached the primary endpoint (all-cause mortality) and 142 patients (22%) the secondary endpoint (a composite of revascularization, re-infarction, and hospitalization for heart failure). Strain and strain rate were both significantly related with all endpoints. After adjusting for clinical and echocardiographic parameters, strain was independent related to all endpoints and was found to be superior to LV ejection fraction (LVEF) and wall motion score index (WMSI). Patients with global strain and strain rate higher than -15.1% and -1.06 s(-1) demonstrated HRs of 4.5 (95% CI 2.1-9.7) and 4.4 (95% CI 2.0-9.5) for all-cause mortality, respectively. CONCLUSION Strain and strain rate provide strong prognostic information in patients after AMI. These novel parameters were superior to LVEF and WMSI in the risk stratification for long-term outcome.
Collapse
Affiliation(s)
- M Louisa Antoni
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Emerging clinical role of strain imaging in echocardiography. Heart Lung Circ 2010; 19:161-74. [PMID: 20149727 DOI: 10.1016/j.hlc.2009.11.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2009] [Accepted: 11/24/2009] [Indexed: 01/07/2023]
Abstract
Myocardial strain is a measure of tissue deformation and strain rate is the rate at which deformation occurs. When applied to the heart, strain and strain rate give fundamental information on myocardial properties and mechanics that would otherwise be unavailable. Site specificity and angle independency are two unique characteristics of strain and strain rate data. Strain and strain rate can be obtained with tissue Doppler imaging or with 2D speck tracking. These two techniques derive information on strain and strain rate in two fundamentally different ways and each has its own advantages and limitations. Tissue Doppler imaging yields velocity information from which strain and strain rate are mathematically derived whereas 2D speckle tracking yields strain information from which strain rate and velocity data are derived. Data obtained from these two different techniques may not be equivalent due to limitations inherent with each technique. Strain and strain rate imaging have been used to assess myocardial function in a wide range of cardiac conditions. They are useful in detecting early left ventricular (LV) dysfunction in the setting of systemic diseases with cardiac involvement, in differentiating transmural from non-transmural infarction, and in identifying LV contractile reserve in regurgitant valve lesions. When used with dobutamine echocardiography, strain and strain rate imaging can identify viable myocardium and aid the detection of myocardial ischaemia. Strain and strain rate imaging can also be used to assess right ventricular and left atrial function. Despite significant promises, strain and strain rate imaging is technically challenging and signal to noise ratio may be potentially affected by a wide range of factors. As a result, strain and strain rate imaging have been slow to get incorporated into everyday clinical practice. Ongoing research and further technical development are likely to improve the quality of the data and the more general acceptance of these new modalities of imaging in echocardiography.
Collapse
|
49
|
Sitia S, Tomasoni L, Turiel M. Speckle tracking echocardiography: A new approach to myocardial function. World J Cardiol 2010; 2:1-5. [PMID: 21160657 PMCID: PMC2999040 DOI: 10.4330/wjc.v2.i1.1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Revised: 01/13/2010] [Accepted: 01/15/2010] [Indexed: 02/06/2023] Open
Abstract
Echocardiography is the most common diagnostic method for assessing cardiac function but some limitations affect this technique. Until now, visual assessment of wall motion and thickening has allowed only a subjective evaluation of myocardial function and requires long-term training. Recently, new echocardiographic techniques have been introduced to evaluate myocardial mechanics. Tissue Doppler imaging (TDI) technique is limited by angle-dependency such that only deformation along the ultrasound beam can be derived from velocities, while myocardium deforms simultaneously in three dimensions. Speckle tracking echocardiography (STE) is a more recent technique that provides a global approach to left ventricular myocardial mechanics, giving information about the three spatial dimensions of cardiac deformation. In this editorial, we describe the physical and pathophysiological concepts of STE, discussing the differences compared to TDI and underlining the pitfalls of this new technique.
Collapse
Affiliation(s)
- Simona Sitia
- Simona Sitia, Livio Tomasoni, Maurizio Turiel, Cardiology Unit, Department of Health Technologies, IRCCS Galeazzi Orthopedic Institute, Università di Milano, 20161 Milan, Italy
| | | | | |
Collapse
|
50
|
Shan Y, Villarraga HR, Pislaru C, Shah AA, Cha SS, Pellikka PA. Quantitative Assessment of Strain and Strain Rate by Velocity Vector Imaging During Dobutamine Stress Echocardiography to Predict Outcome in Patients With Left Bundle Branch Block. J Am Soc Echocardiogr 2009; 22:1212-9. [DOI: 10.1016/j.echo.2009.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Indexed: 10/20/2022]
|