Cardiac magnetic resonance feature tracking– a novel method to assess myocardial strain: Comparison with echocardiographic speckle tracking in healthy volunteers and in patients with left ventricular hypertrophy

2014 ◽  
pp. 363-371 ◽  
Author(s):  
Stefan Orwat ◽  
Aleksander Kempny ◽  
Gerhard-Paul Diller ◽  
Pia Bauerschmitz ◽  
Alexander Ch. Bunck ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Feature Tracking ◽  
Speckle Tracking ◽  
Ventricular Hypertrophy ◽  
Myocardial Strain ◽  
Left Ventricular ◽  
Strain Comparison ◽  
Novel Method ◽  
Echocardiographic Speckle Tracking

P5253Does regional myocardial strain by cardiac magnetic resonance feature tracking reflect scar in ischemic heart disease?

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
K Stathogiannis ◽  
V Mor-Avi ◽  
R Lang ◽  
A R Patel
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Feature Tracking ◽  
Circumferential Strain ◽  
Myocardial Strain ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Lv Function ◽  
Regional Strain ◽  
The Relationship

Abstract Background Cardiac magnetic resonance (CMR) late gadolinium enhancement (LGE) is the gold standard for detection of myocardial scar. We hypothesized that CMR Feature Tracking (FT)-derived regional myocardial strain may reflect the presence of scar and could thus potentially be used instead of LGE imaging. Purpose The aim of this study was to determine the relationship between FT-derived regional myocardial strain and LGE in patients with coronary artery disease (CAD). Methods Seventy-five patients with CAD and typical ischemic LGE patterns on CMR (1.5T) were included (mean age 60±12 years, 70% males). Myocardial strain analysis and LGE identification were performed using dedicated commercial software. Scar was defined by presence of LGE in the same area of the myocardium in both short- and long-axis views. Peak systolic regional longitudinal and circumferential strain (RLS, RCS) values were calculated in the region of interest corresponding to the LGE area and also in a non-LGE myocardial region as a reference in each patient. These comparisons were repeated for a subgroup of 36 patients with left ventricular (LV) ejection fraction (EF) <40% to determine whether the relationship between strain and LGE holds in the presence of reduced LV function, when strain measurements may be altered as a reflection of reduced LVEF itself. Results Both global longitudinal and circumferential strain values were abnormal (−12.8±5.1% and −11.4±4.1%, respectively), reflecting LV dysfunction in this CAD cohort (EF = 40±16%). The magnitude of both RLS and RCS was significantly reduced in areas of LGE, compared to those without LGE: RLS −10.0±5.8% versus −20.4±7.5% (p<0.001); RCS −10.1±5.3±% versus −18.9±7.5%, respectively (p<0.001). Same pattern was noted in the reduced EF subgroup: RLS −8.0±4.7% versus −16.9±6.6% (p<0.001), RCS −7.7±4.3±% versus −16.0±7.9%, respectively (p<0.001). The figure depicts 2 representative cases in long and short axis views, LGE detection and concomitant regional strain analysis. LGE and regional strain analysis. Conclusion Reduced magnitude of regional longitudinal and circumferential strain by CMR-FT correlates with presence of LGE. Pending further validation, this finding may constitute the basis for detection of scar without contrast enhanced imaging, and would result in reduced cost, scan time and risk associated with gadolinium. Acknowledgement/Funding ARP: Research support (software) from Neosoft and Philips

scholarly journals Left ventricular myocardial strain assessed by cardiac magnetic resonance feature tracking in patients with rheumatoid arthritis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Wojciech Tański ◽  
Paweł Gać ◽  
Angelika Chachaj ◽  
Grzegorz Mazur ◽  
Rafał Poręba ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Feature Tracking ◽  
Myocardial Strain ◽  
Radial Strain ◽  
Left Ventricular ◽  
Control Group ◽  
Cyclic Citrullinated Peptide ◽  
Citrullinated Peptide

Abstract Purpose The aim of the study was to assess a relationship between the occurrence of rheumatoid arthritis (RA) and its selected clinical parameters, and left ventricular myocardial strain. Material and methods Fifty-six subjects were qualified for the study: 30 RA patients and 26 subjects without rheumatoid diseases. The study design included taking medical history, assessment of the disease activity using selected scales of activity, collecting samples of venous blood to assess selected laboratory parameters and the assessment of cardiac magnetic resonance (CMR). Using the feature tracking method, the following parameters of the left ventricular myocardial strain were assessed: longitudinal strain (LS), radial strain (RS) and circumferential strain (CS). Results Regarding global values, peak LS and peak CS were statistically significantly lower in RA patients than in the control group. In the whole study group, the factors independently related to low global LS peaks were as follows: occurrence of RA, occurrence of arterial hypertension, increased activity of antibodies against cyclic citrullinated peptide and increased concentration of neutrophil gelatinase-associated lipocalin. The occurrence of RA, occurrence of diabetes, tobacco smoking, higher activity of antibodies against cyclic citrullinated peptide and current use of methotrexate are the risk factors for low peak of global CS. The current use of steroids constitutes a protecting factor against low global CS peaks. Conclusion In subjects with no clinically manifested cardiac damage, RA is associated with a deteriorated left ventricular systolic function assessed by left ventricular myocardial strain measured by CMR feature tracking.

scholarly journals Strain Analysis Using Feature Tracking Cardiac Magnetic Resonance Predict Prognosis of Patients With Ventricular Aneurysm After Myocardial Infarction

2021 ◽  
Author(s):  
Song Shen ◽  
Jing Liang ◽  
Jianhui Li ◽  
Xue Bao ◽  
Jun Xie ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Feature Tracking ◽  
Myocardial Strain ◽  
Left Ventricular ◽  
Transverse Diameter ◽  
Ventricular Aneurysm ◽  
Left Ventricular Strain ◽  
Group B

Abstract Objective We aim to assess the left ventricular strain in patients with ventricular aneurysm(VA) after myocardial infarction(MI) using cardiac magnetic resonance-feature tracking (CMR-FT) and to evaluate its value for long term prognosis of patients.Methods Sixty-five patients who underwent CMR with VA after MI from January 2018 to December 2019 in Drum Tower Hospital Affiliated Hospital of Nanjing University School of Medicine were selected for the study. They were divided into two groups based on New York Heart Association (NYHA): 25 cases of NYHA I as group A and 40 cases of NYHA II-IV as group B. CMR was performed in both groups to quantify the parameters of overall and segmental left ventricular myocardial strain in patients with aneurysm. 37 of whom underwent a second CMR 3-12 months after cardiac infarction to investigate the effects of aneurysm on patients' left ventricular strain and left ventricular cardiac function.Results Patients from group B have larger VA basilar transverse diameter and significant more impaired LV Global longitudinal strain(GLS)、Global circumferential strain(GCS)、Global radial strain(GRS) (-12.34±7.31 vs. -7.68±6.11;p=0.0072, -21.31±13.49 vs. -14.93±10.44;p=0.0361, 37.13±27.87 vs. 22.00±20.05;p=0.0135) without change in infarct size. GLS, GCS, GRS were significant indicators of NYHA classification after AMI by multivariate regression analysis.Conclusions Myocardial strain assessed by CMR-FT may be an independent predictor of NYHA of patients with aneurysm after MI and could be used for identifying high-risk patients with VA.

scholarly journals Incremental value of feature-tracking cardiac magnetic resonance imaging in detecting myocardial dysfunction in patients with idiopathic ventricular arrhythmias

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
C Nikolaidou ◽  
C Kotanidis ◽  
J Leal-Pelado ◽  
K Kouskouras ◽  
VP Vassilikos ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Ventricular Arrhythmias ◽  
Feature Tracking ◽  
Myocardial Dysfunction ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Volume Index ◽  
Control Subjects ◽  
Cmr Imaging

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Cardiac magnetic resonance (CMR) imaging can identify the underlying substrate in patients with ventricular arrhythmias (VAs) and normal echocardiography. Myocardial strain has emerged as a superior index of systolic performance compared to ejection fraction (EF), with an incremental prognostic value in many cardiac diseases. Purpose To assess myocardial deformation using 2-D feature-tracking CMR strain imaging (CMR-FT) in patients with frequent VAs (≥500 ventricular premature contractions (VPC)/24 hours; and/or non-sustained ventricular tachycardia), and structurally normal hearts on echocardiography without evidence of coronary artery disease. Methods Sixty-eight consecutive patients (mean age 46 ± 16 years; 54% female) and 72 healthy controls matched for age and body surface area were included in the study. CMR imaging was performed on a 1.5T Magnetom Avanto (Siemens, Erlangen, Germany) scanner using a standard cardiac protocol. Results CMR showed normal findings in 30 patients (44%), while 16 (24%) had previous myocarditis, 6 (9%) had a diagnosis of non-ischaemic cardiomyopathy (NICM), 15 (22%) were diagnosed with VPC-related cardiomyopathy, and 1 patient had subendocardial infarction [excluded from strain analysis]. Mean left ventricular EF (LVEF) in patients was 62% ± 6% and right ventricular EF 64% ± 6% (vs. 65% ± 3% and 66% ± 4% in controls, respectively). Compared to control subjects, patients with VAs had impaired peak LV global radial strain (GRS) (28.88% [IQR: 25.87% to 33.97%] vs. 36.65% [IQR:33.19% to 40.2%], p &lt; 0.001) and global circumferential strain (GCS) (-17.73% [IQR: -19.8% to -16.33%] vs. -20.66% [IQR: -21.72% to -19.6%], p &lt; 0.001, Panel A). Peak LV GRS could differentiate patients with previous myocarditis from patients with NICM and those with VPC-related cardiomyopathy (Panel B). Peak LV GCS could differentiate patients with previous myocarditis from patients with NICM (Panel C). Peak LV GRS showed excellent diagnostic accuracy in detecting patients from control subjects (Panel D). In a multivariable regression model, subjects with a low GRS (&lt;29.91%-determined by the Youden’s index) had 5-fold higher odds of having VAs (OR:4.99 [95%CI: 1.2-21.95]), after adjusting for LVEF, LV end-diastolic volume index, age, sex, BMI, smoking, hypertension, and dyslipidaemia. Peak LV global longitudinal strain (GLS) and RV strain indices were not statistically different between patients and controls. Conclusion Peak LV GRS and GCS are impaired in patients with frequent idiopathic VAs and can detect myocardial contractile dysfunction in patients with different underlying substrates. Our findings suggest that LV strain indices on CMR-FT constitute independent markers of myocardial dysfunction on top and independently of EF. Abstract Figure.

Sign in / Sign up

Export Citation Format

Share Document