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Journal articles on the topic 'Electromechanical Wave Imaging'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Luther, Stefan. "Electromechanical Wave Imaging." JACC: Clinical Electrophysiology 11, no. 4 (2025): 682–84. https://doi.org/10.1016/j.jacep.2025.02.043.

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2

Provost, Jean, Vu Thanh-Hieu Nguyen, Diégo Legrand, et al. "Electromechanical wave imaging for arrhythmias." Physics in Medicine and Biology 56, no. 22 (2011): L1—L11. http://dx.doi.org/10.1088/0031-9155/56/22/f01.

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3

Costet, Alexandre, Lea Melki, Vincent Sayseng, et al. "Electromechanical wave imaging and electromechanical wave velocity estimation in a large animal model of myocardial infarction." Physics in Medicine & Biology 62, no. 24 (2017): 9341–56. http://dx.doi.org/10.1088/1361-6560/aa96d0.

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4

Zheng, Lu, Hui Dong, Xiaoyu Wu, et al. "Interferometric imaging of nonlocal electromechanical power transduction in ferroelectric domains." Proceedings of the National Academy of Sciences 115, no. 21 (2018): 5338–42. http://dx.doi.org/10.1073/pnas.1722499115.

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The electrical generation and detection of elastic waves are the foundation for acoustoelectronic and acoustooptic systems. For surface acoustic wave devices, microelectromechanical/nanoelectromechanical systems, and phononic crystals, tailoring the spatial variation of material properties such as piezoelectric and elastic tensors may bring significant improvements to the system performance. Due to the much slower speed of sound than speed of light in solids, it is desirable to study various electroacoustic behaviors at the mesoscopic length scale. In this work, we demonstrate the interferomet

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5

Grubb, Christopher S., Lea Melki, Daniel Y. Wang, et al. "Noninvasive localization of cardiac arrhythmias using electromechanical wave imaging." Science Translational Medicine 12, no. 536 (2020): eaax6111. http://dx.doi.org/10.1126/scitranslmed.aax6111.

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Cardiac arrhythmias are a major cause of morbidity and mortality worldwide. The 12-lead electrocardiogram (ECG) is the current noninvasive clinical tool used to diagnose and localize cardiac arrhythmias. However, it has limited accuracy and is subject to operator bias. Here, we present electromechanical wave imaging (EWI), a high–frame rate ultrasound technique that can noninvasively map with high accuracy the electromechanical activation of atrial and ventricular arrhythmias in adult patients. This study evaluates the accuracy of EWI for localization of various arrhythmias in all four chamber

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6

Provost, J., Wei-Ning Lee, K. Fujikura, and E. E. Konofagou. "Electromechanical Wave Imaging of Normal and Ischemic HeartsIn Vivo." IEEE Transactions on Medical Imaging 29, no. 3 (2010): 625–35. http://dx.doi.org/10.1109/tmi.2009.2030186.

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7

Melki, Lea, Melina Tourni, and Elisa E. Konofagou. "Electromechanical Wave Imaging With Machine Learning for Automated Isochrone Generation." IEEE Transactions on Medical Imaging 40, no. 9 (2021): 2258–71. http://dx.doi.org/10.1109/tmi.2021.3074808.

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8

Konofagou, Elisa E., Jianwen Luo, Deepak Saluja, Daniel O. Cervantes, James Coromilas, and Kana Fujikura. "Noninvasive electromechanical wave imaging and conduction-relevant velocity estimation in vivo." Ultrasonics 50, no. 2 (2010): 208–15. http://dx.doi.org/10.1016/j.ultras.2009.09.026.

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9

Provost, Jean, Alok Gambhir, John Vest, Hasan Garan, and Elisa E. Konofagou. "A clinical feasibility study of atrial and ventricular electromechanical wave imaging." Heart Rhythm 10, no. 6 (2013): 856–62. http://dx.doi.org/10.1016/j.hrthm.2013.02.028.

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10

Boissiere, Julien, Mathieu Gautier, Marie-Christine Machet, Gilles Hanton, Pierre Bonnet, and Veronique Eder. "Doppler tissue imaging in assessment of pulmonary hypertension-induced right ventricle dysfunction." American Journal of Physiology-Heart and Circulatory Physiology 289, no. 6 (2005): H2450—H2455. http://dx.doi.org/10.1152/ajpheart.00524.2005.

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We aimed to assess the accuracy of Doppler tissue imaging (DTI) in detecting right ventricle (RV) dysfunction and electromechanical coupling alteration following pulmonary hypertension (PHT) in rat. PHT was induced by chronic hypoxia exposure (hypoxic PHT) or monocrotaline treatment (monocrotaline PHT). In both PHT models, we observed transparietal RV pressure increase and remodeling, including hypertrophy and dilation. Conventional echocardiography provided evidence for pulmonary outflow impairment with midsystolic notch and acceleration time decrease in PHT groups (21.7 ± 1.6 and 13.2 ± 2.9

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11

Provost, Jean, Alexandre Costet, Elaine Wan, et al. "Assessing the atrial electromechanical coupling during atrial focal tachycardia, flutter, and fibrillation using electromechanical wave imaging in humans." Computers in Biology and Medicine 65 (October 2015): 161–67. http://dx.doi.org/10.1016/j.compbiomed.2015.08.005.

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12

Pernot, Mathieu, Kana Fujikura, Simon D. Fung-Kee-Fung, and Elisa E. Konofagou. "ECG-gated, Mechanical and Electromechanical Wave Imaging of Cardiovascular Tissues In Vivo." Ultrasound in Medicine & Biology 33, no. 7 (2007): 1075–85. http://dx.doi.org/10.1016/j.ultrasmedbio.2007.02.003.

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13

Costet, Alexandre, Elaine Wan, Lea Melki, et al. "Non-invasive Characterization of Focal Arrhythmia with Electromechanical Wave Imaging in Vivo." Ultrasound in Medicine & Biology 44, no. 11 (2018): 2241–49. http://dx.doi.org/10.1016/j.ultrasmedbio.2018.06.006.

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14

Costet, Alexandre, Jean Provost, Alok Gambhir, et al. "Electromechanical Wave Imaging of Biologically and Electrically Paced Canine Hearts in Vivo." Ultrasound in Medicine & Biology 40, no. 1 (2014): 177–87. http://dx.doi.org/10.1016/j.ultrasmedbio.2013.08.019.

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15

Melki, Lea, Alexandre Costet, and Elisa E. Konofagou. "Reproducibility and Angle Independence of Electromechanical Wave Imaging for the Measurement of Electromechanical Activation during Sinus Rhythm in Healthy Humans." Ultrasound in Medicine & Biology 43, no. 10 (2017): 2256–68. http://dx.doi.org/10.1016/j.ultrasmedbio.2017.06.019.

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16

Grubb, Christopher, Lea Melki, Daniel Y. Wang, et al. "CARDIAC RESYNCHRONIZATION THERAPY IN 3D USING ELECTROMECHANICAL WAVE IMAGING: A NOVEL NON INVASIVE ULTRASOUND-BASED IMAGING TECHNIQUE." Journal of the American College of Cardiology 71, no. 11 (2018): A443. http://dx.doi.org/10.1016/s0735-1097(18)30984-7.

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17

Temiz, Fatih, Hatice Güneş, and Hakan Güneş. "Evaluation of Atrial Electromechanical Delay in Children with Obesity." Medicina 55, no. 6 (2019): 228. http://dx.doi.org/10.3390/medicina55060228.

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Background and Objective: Childhood obesity is one of the worldwide health problems with an increasing prevalence and accompanied by severe morbidity and mortality. It is a serious predisposing risk factor especially for the development of cardiovascular diseases and arrhythmias. Electromechanical delay (EMD) is known to be a predictor for the development of atrial fibrillation (AF). Our study aims to investigate whether EMD, which is a predictor of AF, prolongs in obese children or not. Material and Methods: The study included 59 obese patients aged between 8–18 years and 38 healthy patients

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18

Wan, Elaine, Alexander Costet, Ethan Bunting, Julien Grondin, Elisa Konofagou, and Hasan Garan. "176-22: Electromechanical wave imaging: a novel non-invasive tool for atrial arrhythmia mapping." EP Europace 18, suppl_1 (2016): i122. http://dx.doi.org/10.1093/europace/18.suppl_1.i122c.

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19

Grondin, Julien, Alexandre Costet, Ethan Bunting, et al. "Validation of electromechanical wave imaging in a canine model during pacing and sinus rhythm." Heart Rhythm 13, no. 11 (2016): 2221–27. http://dx.doi.org/10.1016/j.hrthm.2016.08.010.

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20

Provost, Jean, Stéphane Thiébaut, Jianwen Luo, and Elisa E. Konofagou. "Single-heartbeat electromechanical wave imaging with optimal strain estimation using temporally unequispaced acquisition sequences." Physics in Medicine and Biology 57, no. 4 (2012): 1095–112. http://dx.doi.org/10.1088/0031-9155/57/4/1095.

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21

Jiang, Xie, Wensong Zhou, Xize Chen, et al. "An Electromechanical Impedance-Based Imaging Algorithm for Damage Identification of Chemical Milling Stiffened Panel." Structural Control and Health Monitoring 2024 (May 17, 2024): 1–15. http://dx.doi.org/10.1155/2024/4554472.

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The multiple intersecting stiffeners on the chemical milling stiffened panel (CMSP) limit the application of active health monitoring methods on it. An imaging algorithm based on electromechanical impedance (EMI) and probability-weighting is proposed to achieve quantitative evaluation and localization of the damage on CMSP. The proposed algorithm compensates for the difference in sensor performance with coefficients and there is no need to determine the key parameters of the algorithm through prior experiments. In the paper, the applicability of ultrasonic guided wave (GW) and EMI on CMSP was

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22

Singh, Amandeep, Pawan Kumar, Sriya Yeleswarapu, Falguni Pati, and Renu John. "Surface wave elastography using high speed full-field optical interferometry." Biomedical Physics & Engineering Express 8, no. 2 (2022): 025013. http://dx.doi.org/10.1088/2057-1976/ac50be.

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Abstract The assessment of mechanical stiffness is an essential diagnostic tool for investigating the biomechanical properties of biological tissues. Surface wave elastography (SWE) is an emerging technique to quantify elastic properties of tissues in clinical diagnosis. High-speed optical imaging combined with SWE has enormous potential in quantifying the elastic properties of tissues at microscale resolutions. In this study, we implement surface wave elastography using high-speed optical interferometry to characterize the elastic properties of tissue-mimicking phantoms and ex-vivo native cap

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23

BUNTING, ETHAN, LITSA LAMBRAKOS, PAUL KEMPER, WILLIAM WHANG, HASAN GARAN, and ELISA KONOFAGOU. "Imaging the Propagation of the Electromechanical Wave in Heart Failure Patients with Cardiac Resynchronization Therapy." Pacing and Clinical Electrophysiology 40, no. 1 (2016): 35–45. http://dx.doi.org/10.1111/pace.12964.

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24

Bessière, Francis, Ali Zorgani, Jade Robert, et al. "High Frame Rate Ultrasound for Electromechanical Wave Imaging to Differentiate Endocardial From Epicardial Myocardial Activation." Ultrasound in Medicine & Biology 46, no. 2 (2020): 405–14. http://dx.doi.org/10.1016/j.ultrasmedbio.2019.10.017.

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25

Nauleau, Pierre, Lea Melki, Elaine Wan, and Elisa Konofagou. "Technical Note: A 3-D rendering algorithm for electromechanical wave imaging of a beating heart." Medical Physics 44, no. 9 (2017): 4766–72. http://dx.doi.org/10.1002/mp.12411.

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26

Tourni, Melina, Johanna Tonko, Alexandra Channing, and Elisa Konofagou. "PO-05-185 ELECTROMECHANICAL WAVE IMAGING FOR ARRHYTHMOGENIC MITRAL VALVE DISEASE CHARACTERIZATION IN THE CLINIC." Heart Rhythm 21, no. 5 (2024): S578—S579. http://dx.doi.org/10.1016/j.hrthm.2024.03.1456.

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27

OSULLIVAN, C., I. RAMZY, D. GIBSON, and M. HENEIN. "195 Diastolic left ventricular electromechanical disturbances in Q-wave myocardial infarction." European Journal of Echocardiography 1 (December 1999): S10. http://dx.doi.org/10.1016/s1525-2167(99)80030-4.

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28

OSULLIVAN, C., I. RAMZY, D. GIBSON, and M. HENEIN. "195 Diastolic left ventricular electromechanical disturbances in Q-wave myocardial infarction." European Journal of Echocardiography 1 (December 1999): S36. http://dx.doi.org/10.1016/s1525-2167(99)80125-5.

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29

Nesmith, Haley W., Hanyu Zhang, and Jack M. Rogers. "Optical mapping of electromechanics in intact organs." Experimental Biology and Medicine 245, no. 4 (2019): 368–73. http://dx.doi.org/10.1177/1535370219894942.

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Optical mapping has become a widely used and important method in cardiac electrophysiology. The method typically uses voltage-sensitive fluorescent dyes and high-speed cameras to image propagation of electrical waves. However, signals are highly susceptible to artifact caused by motion of the target organ. Consequently, cardiac optical mapping is traditionally performed in isolated, perfused organs whose contraction has been pharmacologically arrested. This has prevented optical mapping from being used to study interactions between electrical and mechanical motion. However, recently, a number

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30

Provost, Jean, Viatcheslav Gurev, Natalia Trayanova, and Elisa E. Konofagou. "Mapping of cardiac electrical activation with electromechanical wave imaging: An in silico–in vivo reciprocity study." Heart Rhythm 8, no. 5 (2011): 752–59. http://dx.doi.org/10.1016/j.hrthm.2010.12.034.

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31

Wan, Elaine, Alexander Costet, Ethan Bunting, Julien Grondin, Hasan Garan, and Elisa Konofagou. "49-06: Using electromechanical wave imaging, a novel non-invasive ultrasound imaging tool to detect endocardial versus epicardial arrhythmia origins." EP Europace 18, suppl_1 (2016): i31. http://dx.doi.org/10.1093/europace/18.suppl_1.i31c.

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32

Yildiz, Abdulkadir, Derya Ucmak, Mustafa Oylumlu, et al. "Assessment of Atrial Electromechanical Delay and P-Wave Dispersion in Patients with Psoriasis." Echocardiography 31, no. 9 (2014): 1071–76. http://dx.doi.org/10.1111/echo.12530.

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33

Costet, Alexandre, Elaine Wan, Ethan Bunting, Julien Grondin, Hasan Garan, and Elisa Konofagou. "Electromechanical wave imaging (EWI) validation in all four cardiac chambers with 3D electroanatomic mapping in caninesin vivo." Physics in Medicine and Biology 61, no. 22 (2016): 8105–19. http://dx.doi.org/10.1088/0031-9155/61/22/8105.

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34

Dong, Zhijie, Shuangliang Li, Chengwu Huang, et al. "Real-time 3D ultrasound imaging with a clip-on device attached to common 1D array transducers." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A102. http://dx.doi.org/10.1121/10.0026955.

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Performing 3D ultrasound imaging at a real-time volume rate (e.g., &gt;20 Hz) is a challenging task. While 2D array transducers remain the most practical approach for real-time 3D imaging, the large number of transducer elements (e.g., several thousand) that are necessary to cover an effective 3D field-of-view impose a fundamental constraint on imaging speed. Although solutions such as multiplexing and specialized transducers, including sparse arrays and row-column-addressing arrays, have been developed to address this limitation, they inevitably compromise imaging quality (e.g., SNR, reso

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35

Konofagou, Elisa E., and Jean Provost. "Electromechanical wave imaging for noninvasive mapping of the 3D electrical activation sequence in canines and humans in vivo." Journal of Biomechanics 45, no. 5 (2012): 856–64. http://dx.doi.org/10.1016/j.jbiomech.2011.11.027.

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36

Melki, Lea, Christopher S. Grubb, Rachel Weber, et al. "Localization of Accessory Pathways in Pediatric Patients With Wolff-Parkinson-White Syndrome Using 3D-Rendered Electromechanical Wave Imaging." JACC: Clinical Electrophysiology 5, no. 4 (2019): 427–37. http://dx.doi.org/10.1016/j.jacep.2018.12.001.

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37

Zhang, Xiaohui, Wei Zeng, Yuanmin Li, Dapeng Hou, Xiuchang Li, and Wenbo Xu. "Evaluation of P wave Dispersion and Tissue Doppler Imaging for Predicting Paroxysmal Atrial Fibrillation in Patients with Hypertension." Heart Surgery Forum 21, no. 1 (2018): 054. http://dx.doi.org/10.1532/hsf.1831.

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Background: There are no previous studies dealing with paroxysmal atrial fibrillation (AF) and hypertension using electrocardiogram and tissue doppler imaging (TDI). The aim of this study was to investigate and identify the predictive indicators for paroxysmal AF in hypertensive patients using P wave dispersion (Pd) and TDI.Methods: Patients with hypertension were enrolled. Patients with paroxysmal AF were classified as the PAF group, and patients without a history of paroxysmal AF were classified as the NAF group. The clinical data, P wave indicators and TDI indicators were collected and comp

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38

ÇALAPKORUR, Bekir, Mustafa GÖK, Ömer Faruk BOLATTÜRK, Erkan DEMİRCİ, and Yücel YILMAZ. "Evaluation of strain echocardiography and atrial electromechanical delay in patients with idiopathic carpal tunnel syndrome." Journal of Health Sciences and Medicine 5, no. 5 (2022): 1385–89. http://dx.doi.org/10.32322/jhsm.1143836.

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Aim: Carpal tunnel syndrome (CTS) could be an early marker for amyloidosis before developing of overt symptoms of cardiac amyloidosis (CA). CA characterized with left ventricular (LV) diastolic dysfunction and impairment of LV deformation-based parameters. There is limited data about echocardiographic parameters such as strain value of LV, diastolic parameters and atrial EMD in patients with idiopathic CTS. In this study, we investigated LV strain values, diastolic parameters of LV and atrial EMD in patients with idiopathic CTS. Then, we compared these parameters in CTS patients to control gro

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39

Syafitri, Rosa, Pintoko Tedjokusumo, and M. Rizki Akbar. "Correlation Between Uric Acid and Atrial Electromechanical Coupling Interval in Heart Failure with Reduced Ejection Fraction." ACI (Acta Cardiologia Indonesiana) 6, no. 1 (2020): 34–40. http://dx.doi.org/10.22146/jaci.v6i1.127.

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Background: Chronic Heart Failure (CHF) can lead to atrial and structural remodeling that result in non-homogenous impulse propagation and inter and intra-atrial conduction delay. Prolongation of interval of Atrial ElectroMechanical Coupling (AEMC) in CHF patient was related to atrial electromechanical remodeling and Atrial Fibrillation (AF) risk. Hyperuricemia found in CHF played a role in the pathophysiology of AF through neuro-hormonal activation, oxidative stress, inflammation and ionic channel dysfunction. This study aimed to investigate the association between uric acid and AEMCinterval

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40

Tascanov, Mustafa Begenc. "The Relationship Between Prolidase Activity and Atrial Electromechanical Changes in Patients with Paroxysmal Atrial Fibrillation." Combinatorial Chemistry & High Throughput Screening 22, no. 1 (2019): 69–75. http://dx.doi.org/10.2174/1386207322666190306143317.

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Background:Tissue fibrosis increases in the structure of the atrial tissue of atrial fibrillation patients. Prolidase enzyme regulates collagen synthesis. There may be an association between electrocardiography (ECG) findings and prolidase activity.Objective:This study investigated the association between atrial conduction time and prolidase activity, a collagen synthesis enzyme, and P-wave dispersion (PWD) in patients with Paroxysmal Atrial Fibrillation (PAF).Methods:Exclusion criteria included the age of <18 years, heart failure, diabetes, hypertension, hyperlipidemia, malignancy, cerebro

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41

Cooper, Leroy L., Katja E. Odening, Min-Sig Hwang, et al. "Electromechanical and structural alterations in the aging rabbit heart and aorta." American Journal of Physiology-Heart and Circulatory Physiology 302, no. 8 (2012): H1625—H1635. http://dx.doi.org/10.1152/ajpheart.00960.2011.

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Aging increases the risk for arrhythmias and sudden cardiac death (SCD). We aimed at elucidating aging-related electrical, functional, and structural changes in the heart and vasculature that account for this heightened arrhythmogenic risk. Young (5–9 mo) and old (3.5–6 yr) female New Zealand White (NZW) rabbits were subjected to in vivo hemodynamic, electrophysiological, and echocardiographic studies as well as ex vivo optical mapping, high-field magnetic resonance imaging (MRI), and histochemical experiments. Aging increased aortic stiffness (baseline pulse wave velocity: young, 3.54 ± 0.36

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42

Ternushchak, Tetyana M., and Marianna I. Tovt-Korshynska. "RISK PREDICTION FOR ARRHYTHMIA IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE." Wiadomości Lekarskie 74, no. 10 (2021): 2605–9. http://dx.doi.org/10.36740/wlek202110214.

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The aim: To evaluate P-wave dispersion (PwD), as an independent predictor of atrial fibrillation, corrected QT interval dispersion (cQTD), the noninvasive marker of ventricular arrhythmia and sudden cardiac death, investigate the atrial electromechanical delay in patients with COPD and assess their relation with the severity of the disease. Materials and methods: We prospectively enrolled consecutive patients with newly diagnosed COPD (n = 53, age 41.2 ± 6.8 years), compared with an age-matched healthy control group (n = 51, age 40.9 ± 6.5 years). A standard 12-lead electrocardiogram of each p

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43

Bessiere, F., A. Zorgani, L. Daunizeau, et al. "High frame rate ultrasounds for electromechanical wave imaging to characterize and differentiate endocardial from epicardial activation of ventricular arrhythmia: A proof of concept study." Archives of Cardiovascular Diseases Supplements 11, no. 2 (2019): 259. http://dx.doi.org/10.1016/j.acvdsp.2019.02.164.

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44

Özer, Necla, Bünyamin Yavuz, Ilknur Can, et al. "Doppler Tissue Evaluation of Intra-atrial and Interatrial Electromechanical Delay and Comparison with P-wave Dispersion in Patients with Mitral Stenosis." Journal of the American Society of Echocardiography 18, no. 9 (2005): 945–48. http://dx.doi.org/10.1016/j.echo.2005.01.015.

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45

Wang, Hongliang, Yunfei Lv, Chaojie Wang, et al. "Simulation Analysis and Performance Testing Investigation of Capacitive Micromachined Ultrasonic Transducer." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 09 (2018): 1858004. http://dx.doi.org/10.1142/s0218001418580041.

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In various applications of ultrasonic waves, the ultrasonic transducer is the key device of ultrasonic testing and ultrasonic imaging. Compared with the traditional piezoelectric transducer, the capacitive micromachined ultrasonic transducer (CMUT) has many striking advantages, such as low impedance, high bandwidth, easy integration and low cost, and it is expected to become a next generation of mainstream products. In this paper, a CMUT structure for underwater-imaging applications is designed, and the finite element model is established by using COMSOL software, then the modal analysis, harm

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46

Struckman, Heather, Amara Greer-Short, Stephen Baine, et al. "The Nanoscale Basis of Atrial Fibrillation: Functional Impact of Disrupting NaV1.5-rich Intercalated Disk Nanodomains." Microscopy and Microanalysis 26, S2 (2020): 832. http://dx.doi.org/10.1017/s1431927620016001.

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Background:Atrial fibrillation (AF), which is characterized by chaotic patterns of electrical activation of the atria, affects over 4 million people in the US alone. We previously identified nanoscale structural abnormalities in the hearts of AF patients. Specifically, they displayed swelling of gap junction (GJ) –adjacent perinexi, specialized nanodomains rich in cardiac sodium channels (NaV1.5) and located within intercalated disks (IDs; sites of electromechanical contact between adjacent cells). However, the functional consequences of these nanoscale structural changes remain unclear.Object

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47

Вайханская, Т. Г., Т. М. Коптюх, Т. Т. Геворкян, В. В. Апанасевич та А. В. Фролов. "Вайханская Т.Г. , Коптюх Т.М., Геворкян Т.Т., Апанасевич В.В., Фролов А.В." Кардиология в Беларуси 27, № 4 (2024): 294–311. http://dx.doi.org/10.34883/pi.2024.16.4.004.

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Введение. Результаты исследований потенциальных причин предсердной электромеханической дисфункции в настоящее время широко востребованы для лучшего понимания взаимосвязей аритмогенеза суправентрикулярных тахиаритмий с анатомией, структурой и функцией предсердий, а также для оценки риска, прогнозирования и профилактики неблагоприятных аритмических и тромбоэмболических осложнений. Цель. Изучение взаимосвязи электрических и структурных маркеров предсердной дисфункции с риском развития неклапанной фибрилляции предсердий (ФП) у пациентов старше 50 лет с кардиоваскулярными заболеваниями. Материалы и

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48

Chen, Jingqi, Hanzhang Liu, Xiaoduo Zhang, Hui Li, and Feng Yin. "A Miniature PMUT Array for Medical Applications." Journal of Physics: Conference Series 2822, no. 1 (2024): 012161. http://dx.doi.org/10.1088/1742-6596/2822/1/012161.

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Abstract Wearable continuous monitoring technology and internal and cerebrovascular imaging are the frontier hot area of current scientific research, which are of great significance to improving human life and health. Ultrasonic imaging can obtain information such as deep tissue structure by transmitting ultrasonic waves into the tissue and detecting echo signals, and ultrasonic imaging technology has the advantages of high imaging depth, high resolution, high safety, fast and convenient, etc. It is one of the important technologies in the medical field such as wearable continuous monitoring t

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Brodal, Eivind, Frank Melandsø, and Svein Jacobsen. "Performance of an Ultrasonic Imaging System Based on a 45-MHz Linear PVDF Transducer Array: A Numerical Study." Advances in Acoustics and Vibration 2011 (May 31, 2011): 1–15. http://dx.doi.org/10.1155/2011/984596.

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Abstract:

New designs of high-resolution ultrasonic imaging systems that operate in the 30–100 MHz region, for example, those based on linear transducer systems, are currently being investigated for medical purposes. Acoustic waves with frequencies in this range can detect microscopic structures in human tissue but will typically only penetrate a few mm because of large attenuation. However, this is sufficient for a diagnostic ultrasound scan of human skin. The signal-to-noise ratio and the focusing properties of the scanner are critical factors in dermatology, which are determined by the transducer des

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Forrest, Abigail S., Talia C. Joyce, Marissa L. Huebner, et al. "Increased TMEM16A-encoded calcium-activated chloride channel activity is associated with pulmonary hypertension." American Journal of Physiology-Cell Physiology 303, no. 12 (2012): C1229—C1243. http://dx.doi.org/10.1152/ajpcell.00044.2012.

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Abstract:

Pulmonary artery smooth muscle cells (PASMCs) are more depolarized and display higher Ca2+ levels in pulmonary hypertension (PH). Whether the functional properties and expression of Ca2+-activated Cl− channels (ClCa), an important excitatory mechanism in PASMCs, are altered in PH is unknown. The potential role of ClCa channels in PH was investigated using the monocrotaline (MCT)-induced PH model in the rat. Three weeks postinjection with a single dose of MCT (50 mg/kg ip), the animals developed right ventricular hypertrophy (heart weight measurements) and changes in pulmonary arterial flow (pu

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