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444 results for “Echocardiography”
Registration of multi-view echocardiography sequences using a subspace similarity measure
<p>Data employed for the validation of the PCA-based similarity metric proposed in "<em>Registration of multi-view echocardiography sequences using a subspace similarity measure.</em>" Peressutti <em>et al.</em> (under review).</p> <p>Data consists of echocardiography sequences of the Left ventricle of four volunteers (vol_A-vol_D) from different acoustic windows (aw_1-aw_5). The image format is metadata.<br /> For each subject, the ground-truth rigid transformations that aligns each sequence to all the others is provided. Such transformations are provided by optically tracking the position of the ultrasound imaging probe. </p> <p>For more detailed information regarding the datasets, please refer to the paper.</p> <p>Python code for testing the proposed method can be downloaded from (https://github.com/devisperessutti/Python.git), while MATLAB code can be downloaded from (https://github.com/gomezalberto/Matlab.git).</p>
Etiology, characteristics and occurrence of heart diseases in rural Lesotho (ECHO-Lesotho): A retrospective echocardiography cohort study
<p><strong>Background</strong></p> <p>In 2019, 600’000 people in Africa died of heart failure and heart diseases will increase on the continent. It is crucial to understand the regional etiologies and risk factors for heart failure and underlying heart diseases. However, echocardiography data from rural Africa are scarce and from Lesotho non-existent. This study aims to examine the occurrence, characteristics and etiology of heart failure and heart diseases using echocardiography data from a referral hospital in rural Lesotho.</p> <p><strong>Methods</strong></p> <p>We conducted a retrospective cohort study at Seboche Mission Hospital, the only referral hospital in Butha-Buthe district (Lesotho) with an echocardiography department. We included data from all individuals referred to the department between January 2020 and May 2021. From non-hospitalized patients echocardiographic diagnosis, sex and age were available, from hospitalized patients additional sociodemographic and clinical data could be extracted.</p> <p><strong>Results</strong></p> <p>In the study period, a total of 352 echocardiograms were conducted; 213 had abnormal findings (among them 3 children). The majority of adult participants (130/210; 64%) were female and most frequent heart diseases were hypertensive (62/210, 30%), valvular (39/210, 19%) and chronic pulmonary (37/210, 18%). Heart failure represented 11% of hospitalizations in the same period. Among the 126 hospitalized heart failure patients, the most common etiology was chronic pulmonary heart disease (32/126; 25%). Former mine workers and people with a history of tuberculosis were more likely to have a chronic pulmonary heart disease.</p> <p><strong>Conclusions</strong></p> <p>The leading cause of heart disease in this setting is hypertension. However, in contrast to other African epidemiological studies, chronic pulmonary heart disease is unexpectedly common. There is an urgent need to improve awareness and knowledge about lung diseases, make diagnostic and therapeutic options available and increase prevention.</p>
RoBotic TCD Ultrasound BubbLe Study Compared to Transthoracic Echocardiography for Detection of Right to Left Shunt
ClinicalTrials.gov study NCT04604015. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Comparative Effectiveness Study of Transthoracic and Transesophageal Echocardiography in Stroke
ClinicalTrials.gov study NCT03411642. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Correlation of Auscultatory Severity of Aortic Stenosis With Trans Thoracic Echocardiography
ClinicalTrials.gov study NCT01605669. IPD Sharing: NO. Countries: 1. Publications: 4.
Transesophageal Echocardiography (TEE): A Novel Technique for Spinal Cord Imaging
ClinicalTrials.gov study NCT02415244. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Evaluation of Myocardial Function by Global Longitudinal Strain (GLS) Measurement in 2D Echocardiography of Patients With Fibromyalgia
ClinicalTrials.gov study NCT07150455. IPD Sharing: NO. Countries: 1. Publications: 17.
A Study of Stress Echocardiography in Post-Menopausal Women at Risk for Coronary Disease
ClinicalTrials.gov study NCT00162370. IPD Sharing: NO. Countries: 1. Publications: 2.
Echocardiography Sub-Study of the Umbilical Cord Milking in Non-Vigorous Infants Trial (MINVI)
ClinicalTrials.gov study NCT03798093. IPD Sharing: NO. Countries: 1. Publications: 1.
Echocardiography Guided Cardiac Resynchronization Therapy (EchoCRT)
ClinicalTrials.gov study NCT00683696. IPD Sharing: Not stated. Countries: 17. Publications: 4.
Efficacy of Simulation-based Neonatal Echocardiography Training (SimuEchoNeo)
ClinicalTrials.gov study NCT06442683. IPD Sharing: YES. Countries: 1. Publications: 1.
Transesophageal Echocardiography (TEE) to Guide and Confirm Epidural Catheters in Pediatric Patients
ClinicalTrials.gov study NCT02415998. IPD Sharing: Not stated. Countries: 1. Publications: 12.
Advanced 4-chamber echocardiography techniques enable clinically matched precise characterization of heart disease progression in mice
Open the record for dataset details and reuse information.
TIMING AND PATIENTS' POSITION DURING CUFF BLOOD PRESSURE MEASUREMENT AFFECT MYOCARDIAL WORK PARAMETERS MEASURED BY ECHOCARDIOGRAPHY
<p><span>BACKGROUND. Although cuff blood pressure measurement is a critical parameter to calculate myocardial work (MW) noninvasively, there is no recommendation about when and how to measure it. Accordingly, we sought to evaluate the effects of the timing during the echo study and the patient's position on the scanning bed during the cuff blood pressure measurement on MW parameter calculations.</span></p> <p><span>METHODS. 101 consecutive patients (44 women, 66±14 years) undergoing clinically indicated echocardiography were prospectively enrolled. During the echocardiographic study, we measured the cuff blood pressure four times, using a fully automatic digital blood pressure monitor applied to the right arm and left in the same position throughout the stud: BP1 before the start of the echo study, with the patient lying in the supine position; BP2, after positioning the patients on his/her left side to start the echo study; BP3, at the time of the acquisition of the three apical views (4-, 2-chamber, and the long-axis) used to measured left ventricular global longitudinal strain (GLS); and BP4, at the end of the echo study with the patient again in the supine position.</span></p> <p><span>RESULTS. Systolic blood pressure (SBP) at BP1 was 147±21 mm Hg. Between BP1 and BP2, it dropped by 17±9 mm Hg (p<0.05). SBP at BP3 was significantly lower than BP2 (130±20 mm Hg vs. 122±18 mm Hg, p<0.05), and at BP4 was significantly lower than at BP1 (-9±13 mm Hg, p<0.05). The average GLS was -16±3%. Accordingly, the global work index was 1929±441 mmHg% at BP1, dropped to 1717±421 at BP2, decreased to 1602±351 mm Hg% at BP3, and increased to 1815±386 mmHg% at BP4 (p<0.001).</span></p> <p><span>CONCLUSIONS. The timing during the echocardiography study and the patient's position on the scanning bed are critical determinants of the measured cuff SPB and the resulting values of MW parameters. </span></p>
Transthoracic contrast echocardiography data of a patient for super-resolution ultrasound localisation microscopy
<p>We provide sample contrast echocardiography datasets used for generation of super-resolution ultrasound localisation microscopy (ULM) images as reported in the following paper:</p> <div> <div>Jipeng Yan, Biao Huang, Johanna Tonko, Matthieu Toulemonde, Joseph Hansen-Shearer, Qingyuan Tan, Kai Riemer, Konstantinos Ntagiantas, Rasheda A Chowdhury, Pier D Lambiase, Roxy Senior, Meng-Xing Tang. Transthoracic Ultrasound Localization Microscopy of Myocardial Vasculature in Patients, Nature Biomedical Engineering, 2024. DOI: (<a href="https://www.nature.com/articles/s41551-024-01206-6" target="_blank" rel="noopener noreferrer">10.1038/s41551-024-01206-6</a>).</div> <div> </div> <div>The sample datasets include:</div> <div> </div> <div>"LogCompressedCEUS.mp4' is a video of CEUS images gated within one cardiac cycle after motion correction and log compression (acquistion time: 0.36s).</div> <div> </div> <div>"LinearScaleCEUS.mat" is a Matlab data file containing CEUS images after motion correction.</div> <div> </div> <div>"LinearScaleCEUSAfterNoiseReduction.mat' is a Matlab data file containing above CEUS images with noise reduced, which can be processed with our SRUS software (<a href="https://github.com/JipengYan1995/SRUSSoftware">JipengYan1995/SRUSSoftware</a>) for localisation and tracking (A brief tutorial can be found in "Usage of sample data in SRUS Software.docx").</div> <div> </div> <div>"RcvDataSample.mat' is a Matlab data file containing RF data in channels;</div> <div> </div> <div>"BFInformation.mat' is a Matlab data file containing parameters for beamforming;</div> <div> </div> <div>"Data Description.txt" contains more detailed descriptions of above data.</div> <div> </div> </div> <p><strong>Data from all the 10 cardiac cycles of this patient will be available in the future.</strong></p> <p>If you have any questions, please contact Meng-Xing Tang (email: mengxing.tang@imperial.ac.uk).</p>
Transesophageal Echocardiography(TEE) Probe Insertion and Tracheal Cuff Pressure
ClinicalTrials.gov study NCT02034643. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Ventricular Remodeling In Patients With Aortic Stenosis Assessed Echocardiography
ClinicalTrials.gov study NCT00774657. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Cardiac Stress in Septic Shock - Biomarkers, Echocardiography and Outcome
ClinicalTrials.gov study NCT01747187. IPD Sharing: Not stated. Countries: 1. Publications: 13.
Echocardiography in Critically-ill Patients With COVID-19 Pneumonia
ClinicalTrials.gov study NCT04414410. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Intracardiac Versus Transesophageal Echocardiography for Left Atrial Appendage Occlusion Combined With Radiofrequency Ablation
ClinicalTrials.gov study NCT04391504. IPD Sharing: Not stated. Countries: 1. Publications: 1.
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