keyword
MENU ▼
Read by QxMD icon Read
search

echo tracking

keyword
https://www.readbyqxmd.com/read/27925647/left-ventricular-function-assessed-by-one-point-carotid-wave-intensity-in-newly-diagnosed-untreated-hypertensive-patients
#1
Olga Vriz, Serena Favretto, Joanna Jaroch, Rychard Wojciech, Eduardo Bossone, Caterina Driussi, Francesco Antonini-Canterin, Paolo Palatini, Krystyna Loboz-Grudzien
OBJECTIVES: To investigate whether newly diagnosed untreated hypertensive patients show higher left ventricular (LV) contractility, as assessed by traditional echocardiographic indices and carotid wave intensity (WI) parameters, including amplitude of the peak during early (W1 ) and late systole (W2 ). METHODS: A total of 145 untreated hypertensive patients were compared with 145 age- and sex-matched normotensive subjects. They underwent comprehensive echocardiography and WI analysis...
November 28, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27914429/big-brown-bats-eptesicus-fuscus-reveal-diverse-strategies-for-sonar-target-tracking-in-clutter
#2
Beatrice Mao, Murat Aytekin, Gerald S Wilkinson, Cynthia F Moss
Bats actively adjust the acoustic features of their sonar calls to control echo information specific to a given task and environment. A previous study investigated how bats adapted their echolocation behavior when tracking a moving target in the presence of a stationary distracter at different distances and angular offsets. The use of only one distracter, however, left open the possibility that a bat could reduce the interference of the distracter by turning its head. Here, bats tracked a moving target in the presence of one or two symmetrically placed distracters to investigate adaptive echolocation behavior in a situation where vocalizing off-axis would result in increased interference from distracter echoes...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27910996/speckle-tracking-echocardiography-predicts-early-subclinical-anthracycline-cardiotoxicity-in-patients-with-breast-cancer
#3
Qi Tang, Yan Jiang, Yali Xu, Hongmei Xia
PURPOSE: This study aimed to assess the early changes of left ventricular (LV) and right ventricular (RV) mechanics associated with anthracycline treatment for breast cancer and to determine whether two-dimensional speckle tracking echocardiography (2D-STE) analysis could predict chemotherapy-induced cardiotoxicity. BACKGROUND: Anthracycline generates progressive LV dysfunction associated with a poor prognosis. Early detection of minor change of myocardial mechanics is thus important...
December 2, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27909859/sofa-score-and-left-ventricular-systolic-function-as-predictors-of-short-term-outcome-in-patients-with-sepsis
#4
Francesca Innocenti, Vittorio Palmieri, Aurelia Guzzo, Valerio Teodoro Stefanone, Chiara Donnini, Riccardo Pini
In a group of septic patients, we assess the short-term prognostic value of LV systolic performance, evaluated through conventional left ventricular ejection fraction (LVEF) and left ventricular global longitudinal strain (LV GLS). One hundred forty-seven patients with sepsis were recruited; LVEF by planimetry and peak GLS by 2D speckle tracking could be assessed within 24 h. The study population was stratified according to SOFA tertiles assessed at the time of the echocardiogram (G1: SOFA score <5; G2: SOFA score 5-7; G3: SOFA score >7)...
December 1, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/27908646/left-ventricular-function-in-healthy-term-neonates-during-the-transitional-period
#5
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/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/27885494/comparison-of-arterial-stiffness-compliance-in-the-ascending-aorta-and-common-carotid-artery-in-healthy-subjects-and-its-impact-on-left-ventricular-structure-and-function
#8
Olga Vriz, Julien Magne, Caterina Driussi, Gabriele Brosolo, Francesco Ferrara, Paolo Palatini, Victor Aboyans, Eduardo Bossone
Arterial stiffness and compliance parameters from two adjacent elastic arteries [aorta and common carotid artery (CCA)] were compared and their relationship with left ventricular (LV) structure and function and clinical parameters was assessed. 584 healthy subjects were prospectively enrolled [mean age 47.8 ± 18.4 years, range 16-94; 318 (54.4%) men]. They underwent comprehensive transthoracic echocardiography; M-mode diameters were measured at the level of the ascending aorta in systole and diastole and by echo-tracking at the level of the left CCA...
November 24, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27873495/the-effectiveness-of-ferritin-as-a-contrast-agent-for-cell-tracking-mri-in-mouse-cancer-models
#9
Chan Wha Lee, Sun Il Choi, Sang Jin Lee, Young Taek Oh, Gunwoo Park, Na Yeon Park, Kyoung Ah Yoon, Sunshin Kim, Daehong Kim, Yun Hee Kim, Jin Suck Suh
PURPOSE: We aimed to investigate the effectiveness of ferritin as a contrast agent and a potential reporter gene for tracking tumor cells or macrophages in mouse cancer models. MATERIALS AND METHODS: Adenoviral human ferritin heavy chain (Ad-hFTH) was administrated to orthotopic glioma models and subcutaneous colon cancer mouse models using U87MG and HCT116 cells, respectively. Brain MR images were acquired before and daily for up to 6 days after the intracranial injection of Ad-hFTH...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27861208/left-ventricular-myocardial-fibrosis-atrophy-and-impaired-contractility-in-patients-with-pulmonary-arterial-hypertension-and-a-preserved-left-ventricular-function-a-cardiac-magnetic-resonance-study
#10
Rami Homsi, Julian A Luetkens, Dirk Skowasch, Carmen Pizarro, Alois M Sprinkart, Juergen Gieseke, Julia Meyer Zur Heide Gen Meyer-Arend, Hans H Schild, Claas P Naehle
PURPOSE: Using a cardiac magnetic resonance (CMR) approach we investigated left ventricular (LV) myocardial changes associated with pulmonary arterial hypertension (PAH) by strain analysis and mapping techniques. MATERIALS AND METHODS: Seventeen patients with PAH (9 men; mean age, 64.2±13.6 y) and 20 controls (10 men, 63.2±10.5 y) were examined using CMR at 1.5 T. Native LV T1-relaxation times (T1) and extracellular volume fraction (ECV) were assessed using a MOLLI sequence, T2-relaxation times (T2) by means of a gradient spin-echo sequence, and LV longitudinal strain (LVS) and right ventricular (RV) longitudinal strain (RVS) by means of CMR feature tracking...
November 16, 2016: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/27858918/global-longitudinal-strain-predicts-incident-atrial-fibrillation-and-stroke-occurrence-after-acute-myocardial-infarction
#11
Flemming Javier Olsen, Sune Pedersen, Jan Skov Jensen, Tor Biering-Sørensen
Patients with acute myocardial infarction are at increased risk of developing atrial fibrillation. We aimed to evaluate whether speckle tracking echocardiography improves risk stratification for atrial fibrillation in these patients.The study comprised of 373 patients with ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention. Patients had an echocardiogram performed at a median of 2 days after their STEMI. The echocardiograms consisted of conventional measurements and myocardial strain analysis by speckle tracking from 3 apical projections...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27845956/the-association-of-night-time-systolic-blood-pressure-with-ultrasound-markers-of-subclinical-cardiac-and-vascular-disease
#12
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/27824609/prospective-validation-of-right-ventricular-role-in-primary-graft-dysfunction-after-lung-transplantation
#13
Purificación Pérez-Terán, Oriol Roca, José Rodríguez-Palomares, Juan C Ruiz-Rodríguez, Ana Zapatero, Joaquim Gea, Joaquim Serra, Arturo Evangelista, Joan R Masclans
Primary graft dysfunction is a significant cause of lung transplant morbidity and mortality, but its underlying mechanisms are not completely understood. The aims of the present study were: 1) to confirm that right ventricular function is a risk factor for severe primary graft dysfunction; and 2) to propose a clinical model for predicting the development of severe primary graft dysfunction.A prospective cohort study was performed over 14 months. The primary outcome was development of primary graft dysfunction grade 3...
December 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
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
#14
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/27814138/analysis-of-the-diffusion-tensor-imaging-parameters-of-a-normal-cervical-spinal-cord-in-a-healthy-population
#15
Liang-Feng Wei, Shou-Sen Wang, Zhao-Cong Zheng, Jun Tian, Liang Xue
BACKGROUND: Diffusion tensor imaging (DTI) shows great advantage in the diagnosis of brain diseases, including cervical spinal cord (CSC) disease. This study aims to obtain the normal values of the DTI parameters for a healthy population and to establish a baseline for CSC disease diagnosis using DTI. METHODS: A total of 36 healthy adults were subjected to magnetic resonance imaging (MRI) for the entire CSC using the Siemens 3.0 T MR System. Sagittal DTI acquisition was carried out with a single-shot spin-echo echo-planar imaging (EPI) sequence along 12 non-collinear directions...
November 4, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27793158/clinical-and-echocardiographic-predictors-of-mortality-in-acute-pulmonary-embolism
#16
Talal Dahhan, Irfan Siddiqui, Victor F Tapson, Eric J Velazquez, Stephanie Sun, Clemontina A Davenport, Zainab Samad, Sudarshan Rajagopal
PURPOSE: The aim of this study was to evaluate the utility of adding quantitative assessments of cardiac function from echocardiography to clinical factors in predicting the outcome of patients with acute pulmonary embolism (PE). METHODS: Patients with a diagnosis of acute PE, based on a positive ventilation perfusion scan or computed tomography (CT) chest angiogram, were identified using the Duke University Hospital Database. Of these, 69 had echocardiograms within 24-48 h of the diagnosis that were suitable for offline analysis...
October 28, 2016: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/27782943/preoperative-three-dimensional-strain-imaging-identifies-reduction-in-left-ventricular-function-and-predicts-outcomes-after-cardiac-surgery
#17
Kimberly Howard-Quijano, Ali Salem, Charles Barkulis, Einat Mazor, Jennifer C Scovotti, Jonathan K Ho, Richard J Shemin, Tristan Grogan, David Elashoff, Aman Mahajan
BACKGROUND: Echocardiography-based speckle-tracking strain imaging is an emerging modality to assess left ventricular function. The aim of this study was to investigate the change in left ventricular systolic function after cardiac surgery with 3-dimensional (3D) speckle-tracking strain imaging and to determine whether preoperative 3D strain is an independent predictor of acute and long-term clinical outcomes after aortic valve, mitral valve, and coronary artery bypass grafting operations...
October 24, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27777555/the-predictive-processing-paradigm-has-roots-in-kant
#18
Link R Swanson
Predictive processing (PP) is a paradigm in computational and cognitive neuroscience that has recently attracted significant attention across domains, including psychology, robotics, artificial intelligence and philosophy. It is often regarded as a fresh and possibly revolutionary paradigm shift, yet a handful of authors have remarked that aspects of PP seem reminiscent of the work of 18th century philosopher Immanuel Kant. To date there have not been any substantive discussions of how exactly PP links back to Kant...
2016: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/27754264/os-37-07-could-flow-mediated-slowing-constitute-a-methodological-alternative-to-the-conventional-echo-tracking-flow-mediated-dilation-technique-for-the-evaluation-of-endothelial-function-preliminary-results
#19
Telmo Pereira, Armindo Almeida, João Maldonado, Jorge Conde
OBJECTIVE: The Moens-Korteweg equation predicts changes in pulse wave velocity (PWV) following changes in arterial radius, therefore an increase in arterial radius, as seen in a reactive hyperaemia (RH) condition, should slow PWV over a given arterial segment. If this assumption is true, than the deceleration of PWV over the brachial artery (flow-mediated slowing - FMS) should be an equivalent signal of endothelial function during a conventional RH flow-mediated dilation (FMD) procedure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754006/js-ish-esh-2-update-on-the-detection-and-follow-up-of-early-hypertensive-heart-disease
#20
Enrico Agabiti Rosei
Current Hypertension Guidelines emphasize the importance of assessing the presence of preclinical organ damage. In fact, an extensive evaluation of organ damage may increase the number of patients classified at high CV risk and therefore strongly influence the clinical management of patients. Hypertensive heart disease remains to date the form of organ damage for which there is the greatest amount of evidence of a strong independent prognostic significance. In the presence of a chronic pressure overload, a parallel addition of sarcomers takes place with an increase in myocyte width, which in turn increases left ventricular wall thickness; myocyte hypertrophy is also associated with apoptosis, collagen deposition and ventricular fibrosis with an impairment of coronary hemodynamics as well, thus profoundly influencing functional properties of the left (and right) ventricle...
September 2016: Journal of Hypertension
keyword
keyword
93106
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"