Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"M-Mode"”.
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Automatic Arterial Wall Detection and Diameter Tracking Using M-mode Ultrasound
… with a single ultrasound transducer in M-mode.Detection of the region containing the artery walls is obtained using a machine learning trained classifier. Artery lumen diameter is estimated using peak detection and correlation technique.The proposed algorithm is first tested on M-mode …
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Quantitative Hydrodynamics Analysis of Left Ventricular Diastolic Dysfunction using Color M-Mode Echocardiography
… number of deaths caused by this disease. Color M-mode (CMM) echocardiography is a technique that is commonly used in the diagnosis of Left Ventricular Diastolic Dysfunction (LVDD) and is used as the image modality in this work. The motivation for the current work is a hypothesized change in the …
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Deep learning-based M-mode OCT system and B-mode OCT system diagnosis accuracy comparison
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Determination of cardiac output across a range of values in horses by M-mode echocardiography and thermodilution
Determinations of cardiac output (CO) by M-mode echocardio-graphy were compared with simultaneous determinations by thermodilution in 2 conscious and 5 anesthetized horses. A range of cardiac outputs was induced by use of a pharmacological protocol (dopamine, 4 ug/kg/min, dobutamine, 4 ug/kg/min, …
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Microfuidic Devices and Open Access Tool for Localized Microinjection and Heart Monitoring of Drosophila Melanogaster
… with the use of Drosophila larvae as an in-vivo model for cardiac toxicity and cardiac gene screening. In objective 1, we have developed a hybrid multi-tasking microfluidic platform that enables desired orientation, reversible immobilization, and localized microinjection of intact Drosophila …
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Application of remote ischaemic preconditioning to human coronary artery bypass surgery
… IABP usage; inotrope and vasoconstrictor use; M mode, 2D contrastenhanced echocardiography and tissue Doppler imaging) or offer antiarrhythmic benefit (de novo left bundle branch block or Q waves; ventricular tachyarrhythmia incidence). RIPC did not afford renal (peak creatinine, AUC urinary …
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Hydrodynamics of Cardiac Diastole
… range of Reynolds numbers, and an analytical model for vortex ring circulation decay of laminar vortex rings was developed. Also, in this work a novel method for analyzing color M-mode echocardiography data using a newly developed automated algorithm is introduced which examines the pressure …
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Plasma N-terminal Proatrial Natriuretic Peptide Concentration in Cats with Hypertrophic Cardiomyopathy
… relationship between plasma [Nt-proANP] and M-mode, 2-dimensional and Doppler echocardiographic variables was evaluated. Cats that were hyperthyroid or had evidence of renal disease were excluded from the study. Results: The mean plasma [Nt-proANP] was higher in cats with HCM (3.81 +/- 1.23 …
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L’ECOGRAFIA DIAFRAMMATICA E LA VALUTAZIONE DEI MUSCOLI RESPIRATORI IN PAZIENTI CON ATASSIA-TELEANGECTASIA
… dei suoi movimenti di escursione. La modalità B-mode è stata applicata per lo studio del diaframma e quella M-mode è stata utilizzata per la registrazione dell’ampiezza della contrazione diaframmatica durante il respiro tranquillo e profondo. I risultati sono stati confrontati con i dati di …
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Dispersive Characteristics of Left Ventricle Filling Waves
… can be non-invasively imaged using color m-mode echocardiography which provides a spatio-temporal map of inflow velocity. These filling patterns, or waves, are conventionally used to qualitatively assess the filling pattern, however, this work aims to physically quantify the filling waves to …
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Stem Cells as a therapy for myocardial infarction in animal models
… within cardiology when it was shown in animal models that intramyocardial injection of bone marrow stem cells (MSCs), or the mobilization of bone marrow stem cells with spontaneous homing to myocardium, could improve cardiac function and survival after induced myocardial infarction (MI) [1, 2]. …
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A non-invasive central arterial pressure waveform estimation system using ultrasonography for real-time monitoring
… conducting simultaneous spectral Doppler and M-mode imaging. The system is characterized in electrical and acoustic domains to preserve adequate signal integrity to faithfully extract a spatial mean flow velocity and an arterial distension waveform. The carotid ABP waveform is estimated from the …
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Polarization-Maintaining Fiber-Based Optical Coherence Tomography on Functional Imaging in Dense Nerve
… or without voltage-sensitive dye staining. M-mode and cross-sectional imaging have been performed to capture transient changes during neural activity. The OCT signals including optical path length variation of the nerve with respect to a reference surface (∆P), intensity change (∆I), and …
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The Effect of Preload Reduction on Parameters to Evaluate Left Ventricular Diastolic Function
… independent parameter in experimental canine model. The impact of preload on this index, however, has not been studied in human. The purpose of this study was to evaluate the effect of the hemodialysis related preload reduction on conventional and new Doppler indices of LV diastolic function. …
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Advanced Array Imaging for Breast and Prostate Sonography
… In conventional medical ultrasound such as B-mode imaging, the amplitude of the backscattered ultrasound pulse is used to image tissues along a fixed beam direction [1]. This imaging technique works best in static organs, and it is difficult to image moving organs like the heart. The M-mode …
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Determinants of left ventricular mass as measured by Doppler echocardiography in pre-adolescents
… Images of cardiac structures were taken using B-Mode and were then translated to M- Mode. The dimensions at the end diastole were obtained at the onset of the QRS complex of the electrocardiogram in a plane through a standard position. Measurements included: (a) the diameter of the left ventricle …
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Myc and Cyclin T1 co-expression as a therapeutic strategy for cardiac repair following myocardial infarction
… of Myc and Cyclin T1 in a genetic mouse model setting and from a bicistronic mRNA vector could drive adult rodent cardiomyocyte cell-cycle re-entry in the context of injury and lead to functional improvement. Methods Whole-heart single-nuclei RNA sequencing (snRNAseq), in vivo …
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Redefinition of uraemic cardiomyopathy with cardiac magnetic resonance imaging
… a previous study, it was demonstrated that M-mode echocardiography overestimates LV mass compared to CMR in this population. Thus, CMR may be used to optimise echocardiographic formulae to calculate LV mass. Furthermore, it appeared that either by echocardiography or by CMR the chief …