搜索结果: 1-15 共查到“生物医学工程 Ventricular”相关记录16条 . 查询时间(0.082 秒)
Story of a Little Right Ventricular Pseudoaneurysm
Pseudoaneurysm Right Ventricle Pulmonary Artery Catheterization
2013/1/30
Cardiac trauma caused by Swann-Ganz catheter may very rarely cause cardiac perforation, tamponade and right ventricular pseudoaneurysm. In contrast to left ventricular equivalants, pseudoaneurysms of ...
Semi-automatic algorithm for construction of the left ventricular area variation curve over a complete cardiac cycle
Semi-automatic algorithm the left ventricular area a complete cardiac cycle
2010/2/25
This work presents a method for segmentation of the left ventricle in dynamic 2D-echo 4-chamber long-axis images over the complete cardiac cycle. The proposed algorithm is based on classic image proce...
Reduction of CPR artifacts in the ventricular fibrillation ECG by coherent line removal
CPR artifacts the ventricular fibrillation ECG coherent line removal
2010/2/25
The localized coherent line removal algorithm reduces CPR-artifacts in VF-ECG, but does not eliminate them. Our SNR-improvements are in the same range as offered by multichannel methods of Rheinberger...
Assessment of Left Ventricular Function in Cardiac MSCT Imaging by a 4D Hierarchical Surface-Volume Matching Process
MSCT 4D Hierarchical Surface-Volume Matching Process
2009/9/8
Multislice computed tomography (MSCT) scanners offer new perspectives for cardiac kinetics evaluation with 4D dynamic sequences of high contrast and spatiotemporal resolutions. A new method is propose...
Fundamental Study on the Development of a Diagnostic System for Left Ventricular Plastic Surgery of the Abscission Area
cardiac function left ventricular surgery myocardial infarction surface measurement regional strain
2009/6/9
The physical data such as electrocardiogram, blood flow and pressure were simultaneously obtained and compared using this approach. With the physical data, it was confirmed that strain change in the ...
In silico Analysis of Filament Dynamics during Spiral Wave Reentry in 3-D Ventricular Wall Model
lethal arrhythmia sudden cardiac death ventricular gradient computer simulation
2009/6/2
Ventricular fibrillation (VF) is the major cause of sudden cardiac death by lethal arrhythmia. Regional abnormalities such as myocardial infarction are regarded as the cause of VF; however, VF is clin...
The Influence of Activation Time on Left Ventricular Wall Motion—Simulation Study of Ring Shape Left Ventricular Model—
left ventricular wall motion simulation activation time excitation propagation simulation myocardial cell model ejection fraction biosimulation
2009/6/1
The heart is an organ with highly complex structure and its pump function is affected by various factors. Many reports showed the strong relation between the excitation-propagation phenomenon in the h...
Regulation of volume-regulated outwardly rectifying anion channels by phosphatidylinositol 3,4,5-trisphosphate in mouse ventricular cells
phosphatidylinositol 3,4,5-trisphosphate mouse ventricular cells
2009/3/2
Volume-regulated outwardly rectifying anion channel (VRAC) plays an important role in cellvolume regulation in many types of cells. Little is known about the regulation of VRAC by phosphatidylinosit...
A model-based time-reversal of left ventricular motion improves cardiac motion analysis using tagged MRI data
left ventricular motion cardiac motion analysis tagged MRI data
2010/2/25
To improve the estimation performance of large cardiac motions while analyzing tMRI data sets, we propose a two-step solution. The first step involves constructing a model to describe average systolic...
Utilizing FEM-Software to quantify pre- and post-interventional cardiac reconstruction data based on modelling data sets from surgical ventricular repair therapy (SVRT) and cardiac resynchronisation therapy (CRT)
FEM-Software cardiac reconstruction data surgical ventricular repair therapy cardiac resynchronisation therapy
2010/2/26
The operation results for both patients are quantified. The quantification shows treatment details for both interventions (e.g. the elimination of the discontinuities for CRT intervention and the segm...
Reliability of old and new ventricular fibrillation detection algorithms for automated external defibrillators
old and new ventricular fibrillation detection algorithms automated external defibrillators
2010/2/26
For 5 well-known standard and 5 new ventricular fibrillation detection algorithms we calculated the sensitivity, specificity, and the area under their receiver operating characteristic. In addition, t...
Passive and active ventricular elastances of the left ventricle
Passive and active ventricular elastances the left ventricle
2010/3/1
Passive and active ventricular elastance formulae can be evaluated from a single-beat P-V data by means of a simple-to-apply LV model. The active elastance (Ea) can be used to characterize the ventric...
Life-threatening ventricular arrhythmia recognition by nonlinear descriptor
Life-threatening ventricular arrhythmia recognition nonlinear descriptor
2010/3/1
Background
Ventricular tachycardia (VT) and ventricular fibrillation (VF) are ventricular cardiac arrhythmia that could be catastrophic and life threatening. Correct and timely detection of VT or VF ...
Feasibility of rapid and automated importation of 3D echocardiographic left ventricular (LV) geometry into a finite element (FEM) analysis model
3D echocardiographic left ventricular (LV) geometry a finite element (FEM) analysis model
2010/3/1
This study demonstrates that a fully automated importation of 3D TEE data into FEM modeling is feasible and can be efficiently accomplished in the operating room.
Conclusion
For complete intraoperat...
Thermodynamic phase plane analysis of ventricular contraction and relaxation
Thermodynamic phase plane ventricular contraction and relaxation
2010/3/1
Ventricular function has conventionally been characterized using indexes of systolic (contractile) or diastolic (relaxation/stiffness) function. Systolic indexes include maximum elastance or equivalen...