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https://www.readbyqxmd.com/read/27916237/transesophageal-speckle-tracking-echocardiography-improves-right-ventricular-systolic-function-assessment-in-the-perioperative-setting
#1
Nicholas W Markin, Mohammed Chamsi-Pasha, Jiangtao Luo, Walker R Thomas, Tara R Brakke, Thomas R Porter, Sasha K Shillcutt
BACKGROUND: Perioperative evaluation of right ventricular (RV) systolic function is important to follow intraoperative changes, but it is often not possible to assess with transthoracic echocardiographic (TTE) imaging, because of surgical field constraints. Echocardiographic RV quantification is most commonly performed using tricuspid annular plane systolic excursion (TAPSE), but it is not clear whether this method works with transesophageal echocardiographic (TEE) imaging. This study was performed to evaluate the relationship between TTE and TEE TAPSE distances measured with M-mode imaging and in comparison with speckle-tracking TTE and TEE measurements...
December 1, 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/27916236/strain-imaging-with-a-bull-s-eye-map-for-detecting-significant-coronary-stenosis-during-dobutamine-stress-echocardiography
#2
Li-Tan Yang, Yuichiro Kado, Yasufumi Nagata, Kyoko Otani, Yutaka Otsuji, Masaaki Takeuchi
BACKGROUND: Accurate visual assessment of wall motion during dobutamine stress echocardiography (DSE) requires expertise; strain stress echocardiography thus has potential for the objective and reliable evaluation of stress-induced wall motion abnormalities. The aim of this study was to test the hypothesis that strain imaging also requires expertise. Diagnostic accuracy for significant coronary artery disease was compared between visual and strain analysis with a bull's-eye map, and the effect of expertise on readers' accuracy during DSE was determined...
December 1, 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/27908646/left-ventricular-function-in-healthy-term-neonates-during-the-transitional-period
#3
Amish Jain, Afif F El-Khuffash, Bart C W Kuipers, Adel Mohamed, Kim A Connelly, Patrick J McNamara, Robert P Jankov, Luc Mertens
OBJECTIVES: To evaluate whether incorporating conventional, tissue Doppler imaging and speckle tracking echocardiography are reliable and can characterize changes in left ventricular (LV) function properly in healthy neonates in the early transitional newborn period. STUDY DESIGN: A prospective observational study was conducted in 50 healthy term neonates with a mean ± SD gestational age and birth weight of 39.3 ± 1.2 weeks and 3.5 ± 0.44 kg, respectively...
November 28, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27900955/serum-levels-of-n-terminal-pro-b-type-natriuretic-peptide-as-a-diagnostic-marker-for-left-ventricular-dysfunction-in-children-with-end-stage-renal-disease-on-hemodialysis
#4
Amr Mohamed Zoair, Maher Ahmed Abdel-Hafez, Wegdan Mawlana, Mohamed Abdel-Rahman Sweylam
The objective of this study was to determine the diagnostic cutoff value of N-terminal-pro B-type natriuretic peptide (NT-pro BNP) as a marker of left ventricular (LV) dysfunction in children with end-stage renal disease (ESRD) on regular hemodialysis (HD). The study was carried out on thirty children with ESRD on regular HD and thirty healthy controls. Echocardiographic studies were done, including a conventional mode for ejection fraction, fractional shortening, tissue Doppler imaging, and longitudinal global strain by speckle tracking...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27894062/echocardiographic-comparison-between-left-ventricular-non-compaction-and-hypertrophic-cardiomyopathy
#5
Trine F Haland, Jørg Saberniak, Ida S Leren, Thor Edvardsen, Kristina H Haugaa
BACKGROUND: Modern imaging technology has improved detection of left ventricular non-compaction cardiomyopathy (LVNC). Hypertrophic cardiomyopathy (HCM) shares morphological features with LVNC, but prognosis and treatment strategies differ between LVNC and HCM. METHODS AND RESULTS: We aimed to compare global and regional LV myocardial function in LVNC and HCM. We hypothesized that apical function is reduced in LVNC due to the embryonic reduced compaction of the apex...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27889554/familial-dilated-cardiomyopathy-a-multidisciplinary-entity-from-basic-screening-to-novel-circulating-biomarkers
#6
REVIEW
D de Gonzalo-Calvo, M Quezada, O Campuzano, A Perez-Serra, J Broncano, R Ayala, M Ramos, V Llorente-Cortes, S Blasco-Turrión, F J Morales, P Gonzalez, R Brugada, A Mangas, R Toro
Idiopathic dilated cardiomyopathy has become one of the most prevalent inherited cardiomyopathies over the past decades. Genetic screening of first-degree relatives has revealed that 30-50% of the cases have a familial origin. Similar to other heart diseases, familial dilated cardiomyopathy is characterized by a high genetic heterogeneity that complicates family studies. Cli'nical screening, 12-lead electrocardiogram and transthoracic echocardiogram are recommended for patients and first-degree family members...
November 8, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27885496/descending-aortic-mechanics-and-atrial-fibrillation-a-two-dimensional-speckle-tracking-transesophageal-echocardiography-study
#7
Rogério Teixeira, Ricardo Monteiro, Paulo Dinis, Maria José Santos, Ana Botelho, Nuno Quintal, Nuno Cardim, Lino Gonçalves
Vascular mechanics assessed with two-dimensional speckle tracking echocardiography (2D-STE) could be used as a new imaging surrogate of vascular stiffening. The CHA2DS2-VASc score is considered accurate as an estimate of stroke risk in non-valvular AF, although many potential stroke risk factors have not been included in this scoring method. The purpose of this research is to study the feasibility of evaluating vascular mechanics at the descending aorta in non-valvular AF patients using transesophageal 2D-STE and to analyze the association between descending aortic mechanics and stroke...
November 24, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27884247/machine-learning-algorithms-to-automate-morphological-and-functional-assessments-in-2d-echocardiography
#8
Sukrit Narula, Khader Shameer, Alaa Mabrouk Salem Omar, Joel T Dudley, Partho P Sengupta
BACKGROUND: Machine-learning models may aid cardiac phenotypic recognition by using features of cardiac tissue deformation. OBJECTIVES: This study investigated the diagnostic value of a machine-learning framework that incorporates speckle-tracking echocardiographic data for automated discrimination of hypertrophic cardiomyopathy (HCM) from physiological hypertrophy seen in athletes (ATH). METHODS: Expert-annotated speckle-tracking echocardiographic datasets obtained from 77 ATH and 62 HCM patients were used for developing an automated system...
November 29, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27878628/global-deformation-parameters-response-to-exercise-in-adolescents-with-repaired-tetralogy-of-fallot
#9
Timur Mese, Baris Guven, Murat Muhtar Yilmazer, Mustafa Demirol, Şenay Çoban, Cem Karadeniz
Exercise stress echocardiography is rarely used in the follow-up of children with congenital heart disease following surgical repair. There are no data on global longitudinal strain (GLS) and global circumferential strain (GCS) during exercise in adolescents with repaired tetralogy of Fallot (TOF). The purpose of this prospective study was to investigate GLS and GCS using speckle tracking two-dimensional echocardiography (2D-STE) at rest and during exercise in adolescents with repaired TOF. Twenty patients with repaired TOF and 20 controls were included...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27878406/diagnostic-value-of-layer-specific-global-longitudinal-strain-during-adenosine-stress-in-patients-suspected-of-coronary-artery-disease
#10
June A Ejlersen, Steen H Poulsen, Jesper Mortensen, Ole May
Speckle tracking global longitudinal strain (GLS) from dobutamine stress echocardiography (SE) predicts coronary artery disease (CAD). The diagnostic value of GLS from vasodilator SE and the additional value of layer-specific speckle tracking analysis are unclear. We explored the usefulness of layer-specific GLS and non-layer-specific strain (automated functional imaging, AFI) from adenosine SE. The included 132 patients (67% male, 62.6 (9.0) years), of which 46 (35%) had CAD defined as ≥1 stenosis ≥70% (≥50% in the left main), underwent adenosine SE and invasive coronary angiography...
November 22, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27845956/the-association-of-night-time-systolic-blood-pressure-with-ultrasound-markers-of-subclinical-cardiac-and-vascular-disease
#11
Anne Marie O'Flynn, Emily Ho, Eamon Dolan, Ronan J Curtin, Patricia M Kearney
INTRODUCTION: The aim of this study was to examine the association of night-time systolic blood pressure (BP) with subclinical cardiac dysfunction measured by global longitudinal strain (GLS) and subclinical vascular damage measured by carotid intima-media thickness (CIMT) and carotid plaques. METHODS: GLS was measured by speckle-tracking analysis of echocardiogram images. CIMT was measured at the distal 1 cm of the common carotid artery. The presence of carotid plaques was recorded...
November 11, 2016: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/27843329/antineoplastic-related-cardiotoxicity-morphofunctional-aspects-in-a-murine-model-contribution-of-the-new-tool-2d-speckle-tracking
#12
Carmela Coppola, Gennaro Riccio, Antonio Barbieri, Maria Gaia Monti, Giovanna Piscopo, Domenica Rea, Claudio Arra, Carlo Maurea, Claudia De Lorenzo, Nicola Maurea
OBJECTIVE: Considering that global left ventricular systolic radial strain is a sensitive technique for the early detection of left ventricular dysfunction due to antineoplastics and the analysis of segmental myocardial contractility, we evaluated this technique for early detection of trastuzumab-related cardiotoxicity by comparing it with cardiac structural damage. METHODS: Groups of six mice were injected with trastuzumab or doxorubicin, used either as single agents or in combination...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27836307/early-detection-of-cardiac-involvement-in-sarcoidosis-with-2-dimensional-speckle-tracking-echocardiography
#13
Elie-Dan Schouver, Pamela Moceri, Denis Doyen, Nathalie Tieulie, Viviane Queyrel, Delphine Baudouy, Pierre Cerboni, Pierre Gibelin, Sylvie Leroy, Jean-Gabriel Fuzibet, Emile Ferrari
BACKGROUND/OBJECTIVES: Cardiac sarcoidosis (CS) is associated with high morbidity and sudden death. The absence of specific symptoms and lack of diagnostic gold standard technique is challenging. New imaging methods could improve the diagnosis of CS. The aim of our study was to assess the role of left ventricular (LV) longitudinal and circumferential strain as estimated by 2D speckle-tracking imaging in patients with diagnosed sarcoidosis without cardiac involvement according to the current guidelines...
October 29, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27824560/assessing-the-performance-of-ultrafast-vector-flow-imaging-in-the-neonatal-heart-via-multiphysics-modeling-and-in-vitro-experiments
#14
Joris Van Cauwenberge, Lasse Lovstakken, Solveig Fadnes, Alfonso Rodriguez-Morales, Jan Vierendeels, Patrick Segers, Abigail Swillens
Ultrafast vector flow imaging would benefit newborn patients with congenital heart disorders, but still requires thorough validation before translation to clinical practice. This paper investigates 2-D speckle tracking (ST) of intraventricular blood flow in neonates when transmitting diverging waves at ultrafast frame rate. Computational and in vitro studies enabled us to quantify the performance and identify artifacts related to the flow and the imaging sequence. First, synthetic ultrasound images of a neonate's left ventricular flow pattern were obtained with the ultrasound simulator Field II by propagating point scatterers according to 3-D intraventricular flow fields obtained with computational fluid dynamics (CFD)...
November 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27824559/a-comparison-between-compounding-techniques-using-large-beam-steered-plane-wave-imaging-for-blood-vector-velocity-imaging-in-a-carotid-artery-model
#15
Anne E C M Saris, Hendrik H G Hansen, Stein Fekkes, Maartje M Nillesen, Marcel C M Rutten, Chris L de Korte
Conventional color Doppler imaging is limited, since it only provides velocity estimates along the ultrasound beam direction for a restricted field of view at a limited frame rate. High-frame-rate speckle tracking, using plane wave transmits, has shown potential for 2-D blood velocity estimation. However, due to the lack of focusing in transmit, image quality gets reduced, which hampers speckle tracking. Although ultrafast imaging facilitates improved clutter filtering, it still remains a major challenge in blood velocity estimation...
November 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27824555/ultrasound-vector-flow-imaging-part-i-sequential-systems
#16
Jorgen Arendt Jensen, Svetoslav Ivanov Nikolov, Alfred C H Yu, Damien Garcia
This paper gives a review of the most important methods for blood velocity vector flow imaging (VFI) for conventional sequential data acquisition. This includes multibeam methods, speckle tracking, transverse oscillation, color flow mapping derived VFI, directional beamforming, and variants of these. The review covers both 2-D and 3-D velocity estimation and gives a historical perspective on the development along with a summary of various vector flow visualization algorithms. The current state of the art is explained along with an overview of clinical studies conducted and methods for presenting and using VFI...
November 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27820133/decrease-of-cardiac-base-rotation-in-2d-speckle-tracking-indicates-drug-induced-cardiomyopathy-after-chemotherapy-in-children-with-cancer
#17
Kosuke Yanagimoto, Yasuhiro Okamoto, Yuichi Kodama, Takuro Nishikawa, Takayuki Tanabe, Yoshifumi Kawano
Drug-induced cardiomyopathy can be life-threatening in patients with cancer. Our objective was to explore early detection of drug-induced cardiomyopathy in children with cancer. We enrolled pediatric outpatients diagnosed with cancer between 2012 and 2013. In addition, we recruited pediatric outpatients in good general condition without cardiac disease or cancer, as controls. We measured the serum levels of biomarkers and performed chest radiography, electrocardiography, and ultrasound cardiography (UCG). We analyzed left ventricular (LV) torsion and torsion-related parameters using 2-dimensional (2D) speckle tracking on UCG...
November 4, 2016: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/27818478/three-dimensional-speckle-tracking-imaging-for-assessing-left-atrial-function-in-hypertensive-patients-with-paroxysmal-atrial-fibrillation
#18
Atsuko Furukawa, Katsuhisa Ishii, Eiichi Hyodo, Megumi Shibamoto, Akihiro Komasa, Takahiro Nagai, Eiji Tada, Yutaka Seino, Junichi Yoshikawa
Hypertension (HT) is known to be the most prevalent risk factor for paroxysmal atrial fibrillation (PAF), however, its mechanisms have not been fully clarified. Our aim was to investigate the differences in left atrial (LA) function between healthy subjects, and hypertensive patients without PAF (HT-PAF(-)) and with PAF (HT-PAF(+)) using 3-dimensional (3D) speckle tracking imaging (STI). A total of 144 subjects were enrolled: 44 HT-PAF(+) (27 males; mean age 69 ± 10 years), 50 HT-PAF(-) (31 males; mean age 63 ± 11 years), and 50 controls (31 males; mean age 51 ± 14 years)...
November 4, 2016: International Heart Journal
https://www.readbyqxmd.com/read/27805591/transthoracic-speckle-tracking-echocardiography-for-the-quantitative-assessment-of-left-ventricular-myocardial-deformation
#19
Kai O Hensel, Lucia Wilke, Andreas Heusch
The value of conventional echocardiography is limited by differences in inter-individual image interpretation and therefore largely dependent on the examiners' expertise. Speckle tracking Echocardiography (STE) is a promising but technically challenging method that can be used to quantitatively assess regional and global systolic and diastolic myocardial performance. Myocardial strain and strain rate can be measured in all three dimensions - radial, circumferential, longitudinal - of myocardial deformation...
October 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27799316/longitudinal-strain-combined-with-delayed-enhancement-magnetic-resonance-improves-risk-stratification-in-patients-with-dilated-cardiomyopathy
#20
Misato Chimura, Tetsuari Onishi, Yasue Tsukishiro, Takahiro Sawada, Kunihiko Kiuchi, Akira Shimane, Katsunori Okajima, Shinichiro Yamada, Yasuyo Taniguchi, Yoshinori Yasaka, Hiroya Kawai
OBJECTIVE: Late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) imaging has been reported to be associated with unfavourable outcomes; however, few studies have addressed the prognostic value of left ventricular (LV) deformation parameter indicated by global longitudinal strain (GLS) in two-dimensional speckle-tracking (2DST) echocardiography in patients with non-ischaemic dilated cardiomyopathy (DCM). This study aims to investigate whether the combination of GLS and LGE is useful in stratifying the risk in patients with DCM...
October 31, 2016: Heart: Official Journal of the British Cardiac Society
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