Cardiovascular Engineering and Technology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

An Image-Based Computational Fluid Dynamics Study of Mitral Regurgitation in Presence of Prolapse
ConclusionCFD with prescribed wall motion and immersed mitral valve revealed to be an effective tool to quantitatively describe hemodynamics in case of MVR and to compare different regurgitant scenarios. Our findings highlighted in particular the presence of transition to turbulence in the atrium and allowed us to quantify some important cardiac indices such as cardiac output and WSS. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - April 17, 2023 Category: Cardiology Source Type: research

Electrocardiogram to Determine Mitral and Aortic Valve Opening and Closure
ConclusionECG features can be used to estimate aortic and mitral valve timings with good accuracy as compared to DE, allowing useful hemodynamic information to be derived from this easily available test. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - March 27, 2023 Category: Cardiology Source Type: research

In Silico Evaluation of a Self-powered Venous Ejector Pump for Fontan Patients
ConclusionsA self-powered venous assist with promising in silico performance in improving Fontan hemodynamics is proposed. Due to its passive nature, the device has the potential to provide palliation for the growing population of patients with failing Fontan. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - March 6, 2023 Category: Cardiology Source Type: research

The Comparative Method Based on Coronary Computed Tomography Angiography for Assessing the Hemodynamic Significance of Coronary Artery Stenosis
ConclusionThe study presented promising results of non-invasive, comparative test to support of prevention of coronary disease and functional evaluation of stenosed vessels. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - March 3, 2023 Category: Cardiology Source Type: research

A U-Shaped Network Based on Multi-level Feature and Dual-Attention Coordination Mechanism for Coronary Artery Segmentation of CCTA Images
ConclusionOur method can capture the coronary artery structure end-to-end, which can be used as a fundamental means for automatic detection of coronary artery stenosis, blood flow reserve fraction analysis, and assisting clinicians in diagnosing CHD. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 27, 2023 Category: Cardiology Source Type: research

An IMU-Based Wearable System for Respiratory Rate Estimation in Static and Dynamic Conditions
Conclusion Overall, the proposed solution shows it is possible to perform simultaneous HAR and RR measurements in static and dynamic conditions with the same sensor system. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 27, 2023 Category: Cardiology Source Type: research

Quantification of Mechanical Characteristics of Conventional Steerable Ablation Catheters for Treatment of Atrial Fibrillation Using a Heart Phantom
ConclusionBased on our results, future improvements to manual catheter navigation for ablation should focus on improving device performance in orientation control and improved force stability. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 24, 2023 Category: Cardiology Source Type: research

Acute Mechanical Consequences of Vessel-Specific Coronary Bypass Combinations
ConclusionAlthough mechanical compatibility is just one of many factors determining bypass graft outcomes, our data suggests improvements can be made to the grafting process through vessel-specific regional optimization. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 24, 2023 Category: Cardiology Source Type: research

Investigation of Cerebral Hemodynamics During Endovascular Aspiration: Development of an Experimental and Numerical Setup
ConclusionThe presented setup allows forin vitro investigations of artery occlusions and endovascular aspiration techniques on arbitrary patient-specific cerebrovascular anatomies. Thein  silico model provides consistent predictions of flows and pressures in several aspiration scenarios. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 22, 2023 Category: Cardiology Source Type: research

A Signal Processing Framework for the Detection of Abnormal Cardiac Episodes
ConclusionWhen the performance results were compared with the literature, it was observed that the proposed framework performed well. As a result, the proposed framework could be used in an autonomous diagnosis system. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - February 7, 2023 Category: Cardiology Source Type: research

Numerical Methodology to Evaluate Trackability and Pushability of PTCA Balloon Catheter
ConclusionNumerical methodology presented in this study is a preliminary attempt to simulate the behavior of PTCA balloon catheter navigation. This methodology will be helpful in the design and optimization of PTCA balloon catheter and similar devices with improved deliverability. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - January 30, 2023 Category: Cardiology Source Type: research

The Impact of Standard Ablation Strategies for Atrial Fibrillation on Cardiovascular Performance in a Four-Chamber Heart Model
ConclusionThis study provides biomechanical evidence that atrial ablation has acute effects not only on atrial contraction but also on ventricular performance. Therefore, the position and extent of ablation scars is not only important for the termination of arrhythmias but is also determining long-term pumping efficiency. If confirmed in larger cohorts, these results have the potential to help tailoring ablation strategies towards minimal global cardiovascular impairment. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - January 18, 2023 Category: Cardiology Source Type: research

A State-Of-The-Art Review on Coronary Artery Border Segmentation Algorithms for Intravascular Ultrasound (IVUS) Images
AbstractIntravascular Ultrasound images (IVUS) is a useful guide for medical practitioners to identify the vascular status of coronary arteries in human beings. IVUS is a unique intracoronary imaging modality that is used as an adjunct to angioplasty to view vessel structures using a catheter with high resolutions. Segmentation of IVUS images has always remained a challenging task due to various impediments, for example, similar tissue components, vessel structures, and artifacts imposed during the acquisition process. Many researchers have applied various techniques to develop standard methods of image interpretation, how...
Source: Cardiovascular Engineering and Technology - January 17, 2023 Category: Cardiology Source Type: research

Aneurysm Neck Overestimation has a Relatively Modest Impact on Simulated Hemodynamics
ConclusionDifferences in hemodynamics  due to neck width overestimation were found to be at most equal to, and often less than, those reported for other sources of error/uncertainty in intracranial aneurysm CFD, such as solver settings or assumed inflow rates. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - December 14, 2022 Category: Cardiology Source Type: research

Performance of a Hydrogel Coated Nitinol with Oligonucleotide-Modified Nanoparticles Within Turbulent Conditions of Blood-Contacting Devices
ConclusionThe results demonstrate promising potential of hydrogelfunctionalized nitinol for capturing nanoparticles using nucleic acid hybridization. The hydrogel structure and ONCON bond integrity both demonstrated a resistance to mechanical damage and loss of biomolecular functionalization by exposure to turbulence. Further investigation is warranted to highlight drug delivery and antithrombogenic modification applications of nanoparticle-functionalized hydrogels. (Source: Cardiovascular Engineering and Technology)
Source: Cardiovascular Engineering and Technology - December 13, 2022 Category: Cardiology Source Type: research