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https://www.readbyqxmd.com/read/29673853/biventricular-dyssynchrony-on-cardiac-magnetic-resonance-imaging-and-its-correlation-with-myocardial-deformation-ventricular-function-and-objective-exercise-capacity-in-patients-with-repaired-tetralogy-of-fallot
#1
Pantelis Kalaitzidis, Stefan Orwat, Aleksander Kempny, Radke Robert, Brigitte Peters, Samir Sarikouch, Philipp Beerbaum, Helmut Baumgartner, Gerhard-Paul Diller
BACKGROUND: Electrical dyssynchrony and prolonged QRS duration are common in patients with repaired tetralogy of Fallot (ToF). It has been linked to increased risk of sudden cardiac death and right ventricular (RV) dysfunction. We investigated myocardial dyssynchrony using cardiac magnetic resonance imaging (CMR) and feature tracking analysis (FT) in this setting and compared it to myocardial deformation, conventional parameters of ventricular dysfunction and clinical parameters. METHODS AND RESULTS: Patients underwent standardized CMR investigations as part of a nationwide study...
April 12, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29670871/echocardiographic-evaluation-of-ventricular-function-for-the-neonatologist-and-pediatric-intensivist
#2
REVIEW
Cécile Tissot, Yogen Singh, Nicole Sekarski
In the neonatal and pediatric intensive care setting, bedside cardiac ultrasound is often used to assess ventricular dimensions and function. Depending upon the underlying disease process, it is necessary to be able to evaluate the systolic and diastolic function of left and or right ventricles. The systolic function of left ventricle is mostly assessed qualitatively on visual inspection "eye-balling" and quantitatively by measuring circumferential fraction shortening or calculating the ejection fraction by Simpson's planimetry...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29669563/a-comparison-of-both-dense-and-feature-tracking-techniques-with-tagging-for-the-cardiovascular-magnetic-resonance-assessment-of-myocardial-strain
#3
J Jane Cao, Nora Ngai, Lynette Duncanson, Joshua Cheng, Kathleen Gliganic, Qizhi Chen
BACKGROUND: Myocardial strain is increasingly recognized as an important assessment for myocardial function. In addition, it also improves outcome prediction. However, there is lack of standardization in strain evaluation by cardiovascular magnetic resonance (CMR). In this study we compared strain values using multiple techniques and multiple vendor products. METHODS: Prospectively recruited patients with cardiomyopathy of diverse etiology (N = 77) and healthy controls (N = 10) underwent CMR on a 1...
April 19, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29664336/left-ventricular-myocardial-deformation-on-cine-mr-images-relationship-to-severity-of-disease-and-prognosis-in-amyloid-light-chain-amyloidosis
#4
Ke Wan, Jiayu Sun, Dan Yang, Hong Liu, Jie Wang, Wei Cheng, Qing Zhang, Zhi Zeng, Tianjing Zhang, Andreas Greiser, Marie-Pierre Jolly, Yuchi Han, Yucheng Chen
Purpose To measure left ventricular (LV) myocardial strain with cine magnetic resonance (MR) imaging and a deformable registration algorithm (DRA) and to assess the prognostic value of myocardial strain in patients with light-chain (AL) amyloidosis. Materials and Methods In this prospective study, 78 consecutive patients with AL amyloidosis who underwent contrast material-enhanced cardiac MR imaging were enrolled at West China Hospital. LV myocardial strains and late gadolinium enhancement (LGE) were evaluated...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29663505/global-and-regional-left-ventricular-circumferential-strain-during-incremental-cycling-and-isometric-knee-extension-exercise
#5
Alexander Beaumont, Nicholas Sculthorpe, John Hough, Viswanath Unnithan, Joanna Richards
BACKGROUND: The objective of this study was to investigate left ventricular (LV) circumferential strain responses to incremental cycling and isometric knee extension exercises. METHODS: Twenty-six healthy male participants (age = 30 ± 6 years) were used to study LV global (GCS) and regional circumferential strain at the apex (ACS) and base (BCS) during incremental cycling at 30% and 60% work rate maximum (Wmax ) and short-duration (15 seconds contractions) isometric knee extensions at 40% and 75% maximum voluntary contraction (MVC) using two-dimensional speckle tracking echocardiography...
April 16, 2018: Echocardiography
https://www.readbyqxmd.com/read/29661945/cigarette-smoking-and-incident-heart-failure-insights-from-the-jackson-heart-study
#6
Daisuke Kamimura, Loretta R Cain, Robert J Mentz, Wendy B White, Michael J Blaha, Andrew P DeFilippis, Ervin R Fox, Carlos J Rodriguez, Rachel J Keith, Emelia J Benjamin, Javed Butler, Aruni Bhatnagar, Rose M Robertson, Michael D Winniford, Adolfo Correa, Michael E Hall
Background -Cigarette smoking has been linked with several factors associated with cardiac dysfunction. We hypothesized that cigarette smoking is associated with left ventricular (LV) structure and function, and incident heart failure (HF) hospitalization. Methods -We investigated 4129 (never smoker n=2884, current smoker n=503, and former smoker n=742) black participants (mean age, 54 years; 63% women) without a history of HF or coronary heart disease at baseline in the Jackson Heart Study. We examined the relationships between cigarette smoking and LV structure and function by using cardiac magnetic resonance imaging among 1092 participants, cigarette smoking and brain natriuretic peptide levels among 3325 participants, and incident HF hospitalization among 3633 participants with complete data...
April 16, 2018: Circulation
https://www.readbyqxmd.com/read/29661525/a-preliminary-study-of-left-ventricular-rotational-mechanics-in-children-with-noncompaction-cardiomyopathy-do-they-influence-ventricular-function
#7
Hythem M Nawaytou, Andrea E Montero, Putri Yubbu, Renzo J C Calderón-Anyosa, Tomoyuki Sato, Matthew J O'Connor, Kelley D Miller, Philip C Ursell, Julien I E Hoffman, Anirban Banerjee
BACKGROUND: Current diagnostic criteria for noncompaction cardiomyopathy (NCC) lack specificity, and the disease lacks prognostic indicators. Reverse apical rotation (RAR) with abnormal rotation of the cardiac apex in the same clockwise direction as the base has been described in adults with NCC. The aim of this study was to test the hypothesis that RAR might differentiate between symptomatic NCC and benign hypertrabeculations and might be associated with ventricular dysfunction. METHODS: Echocardiograms from 28 children with NCC without cardiac malformations were prospectively compared with those from 29 age-matched normal control subjects...
April 13, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29655509/reduced-right-ventricular-fractional-area-change-strain-and-strain-rate-before-bidirectional-cavopulmonary-anastomosis-is-associated-with-medium-term-mortality-for-children-with-hypoplastic-left-heart-syndrome
#8
Lily Q Lin, Jennifer Conway, Silvia Alvarez, Benjamin Goot, Jesus Serrano-Lomelin, Timothy Colen, Edythe B Tham, Shelby Kutty, Ling Li, Nee Scze Khoo
BACKGROUND: Ventricular dysfunction is associated with increased morbidity and mortality in children with hypoplastic left heart syndrome. The aim of this study was to assess the diagnostic performance of conventional and speckle-tracking echocardiographic measures of right ventricular (RV) function before bidirectional cavopulmonary anastomosis palliation in predicting death or need for heart transplantation (HTx). METHODS: RV fractional area change (RVFAC) and longitudinal and circumferential strain and strain rate (SR) were measured in 64 prospectively recruited patients with hypoplastic left heart syndrome from echocardiograms obtained before bidirectional cavopulmonary anastomosis surgery...
April 12, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29651605/diagnostic-role-of-strain-imaging-in-atypical-myocarditis-by-echocardiography-and-cardiac-mri
#9
Bethany L Wisotzkey, Brian D Soriano, Erin L Albers, Mark Ferguson, Sujatha Buddhe
BACKGROUND: The diagnosis of myocarditis presenting as isolated acute chest pain with elevated troponins but normal systolic function is challenging with significant drawbacks even for the gold-standard endomyocardial biopsy. OBJECTIVE: This study aimed to evaluate the diagnostic role of strain imaging by echocardiography and cardiac MRI in these patients. MATERIALS AND METHODS: This was a retrospective review of children with cardiac MRI for acute chest pain with elevated troponins compared to normal controls...
April 13, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29650434/importance-of-three-dimensional-speckle-tracking-in-the-assessment-of-left-atrial-and-ventricular-dysfunction-in-patients-with-myotonic-dystrophy-type-1
#10
Henrique Guedes, Nuno Moreno, Rui Pontes Dos Santos, Leonor Marques, Daniel Seabra, Adriana Pereira, Aurora Andrade, Paula Pinto
INTRODUCTION AND AIM: Myotonic dystrophy type 1 (DM1) is a multisystem disease in which cardiac involvement is common. The aim of this study was to identify early changes in left atrial (LA) mechanics and left ventricular (LV) systolic function in patients with myotonic dystrophy type 1 using three-dimensional (3D) speckle tracking echocardiography (3D-STE). METHODS: This observational study included 25 patients with DM1 and 25 healthy volunteers. We assessed LA and LV global strain parameters using 3D-STE...
April 9, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29627182/transesophageal-echocardiographic-strain-imaging-predicts-aortic-biomechanics-beyond-diameter
#11
Alexander Emmott, Haitham Alzahrani, Mohammed Alreishidan, Judith Therrien, Richard L Leask, Kevin Lachapelle
BACKGROUND: Clinical guidelines recommend resection of ascending aortic aneurysms at diameters 5.5 cm or greater to prevent rupture or dissection. However, approximately 40% of all ascending aortic dissections occur below this threshold. We propose new transesophageal echocardiography strain-imaging moduli coupled with blood pressure measurements to predict aortic dysfunction below the surgical threshold. METHODS: A total of 21 patients undergoing aortic resection were recruited to participate in this study...
March 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29616409/cardiotoxicity-in-hematological-diseases-are-the-tyrosine-kinase-inhibitors-imatinib-and-nilotinib-safe
#12
Ana Rita G Francisco, Daniela Alves, Cláudio David, Lurdes Guerra, Fausto J Pinto, Ana G Almeida
Chemotherapy-induced cardiotoxicity is a growing concern. The cardiotoxic impact of new drugs such as tyrosine kinase inhibitors is unknown, especially the ones used for chronic myeloid leukemia. We aim to evaluate nilotinib- and imatinib-induced cardiotoxicity. Single-center prospective study of consecutive patients with chronic myeloid leukemia treated with tyrosine kinase inhibitors was conducted during 2015. Patients underwent an initial clinical, laboratorial and echocardiographic evaluation, repeated after 1 year...
April 3, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29613987/focal-myocardial-damage-in-cardiac-sarcoidosis-characterized-by-strain-analysis-on-magnetic-resonance-tagged-imaging-in-comparison-with-fluorodeoxyglucose-positron-emission-tomography-accumulation-and-magnetic-resonance-late-gadolinium-enhancement
#13
Yoshiaki Watanabe, Tatsuya Nishii, Shinsuke Shimoyama, Tatsuro Ito, Shumpei Mori, Atsushi K Kono, Satoru Takahashi, Ken-Ichi Hirata, Kazuro Sugimura
OBJECTIVE: The aims of this study were to characterize focal myocardial damage of cardiac sarcoidosis by strain analysis and to compare it with late gadolinium enhancement (LGE) and fluorodeoxyglucose (FDG) positron emission tomography. METHODS: We reviewed 208 segments from 13 cardiac sarcoidosis patients and measured the circumferential strain (Ecc) and the strain change per second (Ecc rate). The mean Ecc and Ecc rate values were compared between the FDG(+) and FDG(-), and the LGE(+) and LGE(-) segments using Welch's t test...
April 2, 2018: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29611048/use-of-speckle-tracking-in-the-evaluation-of-late-subclinical-myocardial-damage-in-survivors-of-childhood-acute-leukaemia
#14
Elena Guadalupe Corella Aznar, Ariadna Ayerza Casas, Lorenzo Jiménez Montañés, Maria Ángeles Carlota Calvo Escribano, José Ignacio Labarta Aizpún, Pilar Samper Villagrasa
Heart disease is the leading cause of non-cancer death in childhood cancer survivors. to determine the prevalence of subclinical cardiac dysfunction using speckle tracking and compare its results with those obtained by classical methods of assessing left ventricular function and its relationship with different factors to identify the population at higher risk. Echocardiographic assessment of left ventricular function included ejection fraction, tissue Doppler, longitudinal/circumferential strains and biochemical parameters (troponin-T and Pro-BNP) in a cohort of 57 survivors of childhood acute leukaemia with at least 10 years since diagnosis...
April 2, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29605083/hydraulic-permeability-of-meniscus-fibrocartilage-measured-via-direct-permeation-effects-of-tissue-anisotropy-water-volume-content-and-compressive-strain
#15
Kelsey L Kleinhans, Alicia R Jackson
Hydraulic permeability is an important material property of cartilaginous tissues, governing the rate of fluid flow, which is crucial to tissue biomechanics and cellular nutrition. The effects of strain, anisotropy, and region on the hydraulic permeability in meniscus tissue have not been fully elucidated. Using a one-dimensional direct permeation test, we measured the hydraulic permeability within statically compressed porcine meniscus specimens, prepared such that the explants were in either the axial or circumferential direction of either the central or horn (axial direction only) region of the medial and lateral menisci...
March 16, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29603386/natural-history-of-myocardial-deformation-in-children-adolescents-and-young-adults-exposed-to-anthracyclines-systematic-review-and-meta-analysis
#16
Mirela Tuzovic, Pei-Tzu Wu, Samuel Kianmahd, Kim-Lien Nguyen
OBJECTIVE: Anthracyclines are widely used to treat solid and hematologic malignancies, but are known to cause cardiotoxicity. As more childhood cancer survivors reach adulthood due to improvements in oncologic treatments, they become susceptible to late and progressive anthracycline-induced cardiotoxicity. Nonetheless, diagnostic criteria for early detection of cardiac dysfunction are not well defined in children, adolescent, and young adults (CAYA, ages 1-40 years). We present a natural history of the changes in myocardial deformation in CAYA patients after anthracycline therapy...
March 30, 2018: Echocardiography
https://www.readbyqxmd.com/read/29601139/myocardial-fibrosis-evaluated-by-diffusion-weighted-imaging-and-its-relationship-to-3d-contractile-function-in-patients-with-hypertrophic-cardiomyopathy
#17
Rui Wu, Dong-Aolei An, Ruo-Yang Shi, Bing-Hua Chen, Meng Jiang, Andrew Bacyinski, Tong-Tong Han, Jiani Hu, Jian-Rong Xu, Lian-Ming Wu
BACKGROUND: Previous studies have shown that diffusion-weighted imaging (DWI) is sensitive to myocardial fibrosis in ischemic and nonischemic cardiomyopathy. PURPOSE: To explore the prognostic value of apparent diffusion coefficient (ADC) for detecting myocardial fibrosis and its relationship to the contractile function in hypertrophic cardiomyopathy (HCM). STUDY TYPE: Prospective. POPULATION: A total of 45 HCM patients and 20 controls...
March 30, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29600778/integrated-assessment-of-left-ventricular-electrical-activation-and-myocardial-strain-mapping-in-heart-failure-patients-a-holistic-diagnostic-approach-for-endocardial-cardiac-resynchronization-therapy-ablation-of-ventricular-tachycardia-and-biological-therapy
#18
Francesco Maffessanti, Frits W Prinzen, Giulio Conte, François Regoli, Maria Luce Caputo, Daniel Suerder, Tiziano Moccetti, Francesco Faletra, Rolf Krause, Angelo Auricchio
OBJECTIVES: This study sought to test the accuracy of strain measurements based on anatomo-electromechanical mapping (AEMM) measurements compared with magnetic resonance imaging (MRI) tagging, to evaluate the diagnostic value of AEMM-based strain measurements in the assessment of myocardial viability, and the additional value of AEMM over peak-to-peak local voltages. BACKGROUND: The in vivo identification of viable tissue, evaluation of mechanical contraction, and simultaneous left ventricular activation is currently achieved using multiple complementary techniques...
January 2018: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29600550/assessment-of-multidirectional-movements-of-the-common-carotid-artery-in-atherothrombotic-stroke-using-dimensional-speckle-tracking-carotid-ultrasonography-a-prospective-controlled-cohort-study
#19
Ji Hyun Yoon, Donghee Han, Sujin Kim, In-Jeong Cho, Ji Min Sung, Jinyong Lee, Hojin Ryoo, Chi Young Shim, Geu-Ru Hong, Hyuk-Jae Chang
AIM: We aimed to explore the relevance of multidirectional movements of the common carotid artery in atherothrombotic stroke. METHODS AND RESULTS: We prospectively enrolled 69 patients with atherothrombotic stroke (stroke group) and 69 age-matched and sex-matched controls (control group) who underwent carotid ultrasonography. Based on the speckle tracking technique, circumferential and radial movements of the common carotid artery were analyzed from transverse and longitudinal B-mode images of the common carotid artery...
March 30, 2018: Echocardiography
https://www.readbyqxmd.com/read/29579586/subclinical-left-ventricular-dysfunction-and-correlation-with-regional-strain-analysis-in-myocarditis-with-normal-ejection-fraction-a-new-diagnostic-criterion
#20
Peggy M Kostakou, Vassilis S Kostopoulos, Elsi S Tryfou, Vassilis D Giannaris, Ioannis E Rodis, Christoforos D Olympios, Nikos T Kouris
BACKGROUND: The diagnosis of myocarditis is challenging, especially in case of normal left ventricular systolic function. The aim of this study is to test the hypothesis that 2D speckle tracking echocardiography (2DSTE) can detect subclinical left ventricular (LV) dysfunction in patients with myocarditis and preserved LV function without regional wall motion abnormalities and that regional strain analysis can correlate with cardiac magnetic resonance (CMR) findings. METHODS: Study population consisted of 25 consecutive patients with myocarditis and 19 controls...
May 15, 2018: International Journal of Cardiology
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