A5013793386- Medical Image Segmentation Techniques
- Cardiovascular Function and Risk Factors
- Cardiac Valve Diseases and Treatments
- Computer Graphics and Visualization Techniques
- Medical and Health Sciences Research
- Cardiac Imaging and Diagnostics
- Cardiac Arrhythmias and Treatments
- Advanced MRI Techniques and Applications
- Atrial Fibrillation Management and Outcomes
- Image Retrieval and Classification Techniques
- Medical Imaging Techniques and Applications
- Advanced Radiotherapy Techniques
- Surgical Simulation and Training
- Coronary Interventions and Diagnostics
- Cardiac and Coronary Surgery Techniques
- Cardiovascular Health and Disease Prevention
- Cardiac pacing and defibrillation studies
- Augmented Reality Applications
- AI in cancer detection
- Ultrasound Imaging and Elastography
- Electrical and Bioimpedance Tomography
- 3D Shape Modeling and Analysis
- Anatomy and Medical Technology
- Radiation Dose and Imaging
- Model-Driven Software Engineering Techniques
Mannheim University of Applied Sciences
2022
Siemens Healthcare (Germany)
2012
Heidelberg University
2002-2006
German Cancer Research Center
2001-2006
DKFZ-ZMBH Alliance
2001-2005
Heidelberg University
2002
The aim of the Medical Imaging Interaction Toolkit (MITK) is to facilitate creation clinically usable image-based software. Clinically software for image-guided procedures and image analysis require a high degree interaction verify and, if necessary, correct results from (semi-)automatic algorithms. MITK class library basing on extending Insight (ITK) Visualization (VTK). ITK provides leading-edge registration segmentation algorithms forms algorithmic basis. VTK has powerful visualization...
The lack of an international standard for assessing and communicating health app quality the consensus about what makes a high-quality negatively affect uptake such apps. At request European Commission, Standard Development Organizations (SDOs), Committee Standardization, International Organization Electrotechnical Commission have joined forces to develop technical specification (TS) reliability wellness apps.This study aimed create useful, globally applicable, trustworthy, usable framework...
Echocardiography (cardiac ultrasound) is today the predominant technique for quantitative assessment of cardiac function and valvular heart lesions. Segmentation structures required to determine many important diagnostic parameters. As a moving organ, reliable information can be obtained only from three-dimensional (3-D) data over time (3-D + = 4-D). Due their size, resulting four-dimensional (4-D) sets are not reasonably accessible simple manual segmentation methods. Automatic often yields...
This contribution presents a novel method for image-guided navigation in oncological liver surgery. It enables the perpetuation of registration deeply located intrahepatic structures during resection. For this purpose, aids localizable by an electro-magnetic tracking system are anchored within liver. Position and orientation data gained from used to parameterize real-time deformation model. approach first time monitoring target also depth intraoperatively deformed The dynamic behavior model...
Modern systems for visualization, image guided procedures and display allow not only one type of but a variety different visualization options. Only combination two-dimensional three-dimensional rendering provides enough information many tasks. Multiplanar orthogonal oblique reformations data are standard features medical imaging software packages today. Additionally, curved useful. For example, diagnosis stenotic vessels can be supported by along the centerline vessel, showing complete...
Purpose Atrial fibrillation (AF) is the most common arrhythmia and results in an increased risk of ischaemic stroke. Recently, a European consortium has developed new ablation device for minimally invasive surgical AF treatment. The controlled by medical robot. Due to minimal usage, surgery using needs appropriate navigation support. In this paper, we describe image-based application guide intraoperatively. Methods procedure based on intraoperative ultrasound. Variations position are...
Changes in mitral annular shape and dynamics are associated with regurgitation without valvular disease. Therefore, it is interesting to visualise the annulus together regurgitant flow patterns. A prerequisite for a clear visualisation segmentation of annulus. We present specialised method rotationally-acquired 3D transesophageal echocardiographic data. For visualisation, surface model constructed, while we use volume rendering patterns, which allows display original colour coding from 2D...
The Medical Imaging Interaction Toolkit (MITK) is an opensource toolkit for the development of interactive medical image analysis software. MITK based on open-source Insight (ITK) and Visualization (VTK) extends them with features required systems. ITK used algorithmic scope general infrastructure, VTK visualization. Key are coordination multiple 2D 3D visualizations arbitrary data, a interaction concept including undo/redo, its extendibility flexibility to create tailored applications due...
The most common arrhythmia is atrial fibrillation. Beside surgery, intracardiac catheter ablation used commonly for curative treatment. Navigation systems have been developed to reduce fluoroscopic time and provide a more accurate positioning. Within these systems, standard 3D-views are show catheters ablated areas. We present novel method display spatial relations of catheter, anatomical landmarks lines in mapped 2D-view. Furthermore, planning desired feasible. can be valuable tool support...
The knowledge about the complex three-dimensional (3D) heart wall motion pattern, particular in left ventricle, provides valuable information potential malfunctions, e.g., myocardial ischemia. Nowadays, echocardiography (cardiac ultrasound) is predominant technique for evaluation of cardiac function. Beside morphology, tissue velocities can be obtained by Doppler techniques (tissue imaging, TDI). Strain rate imaging (SRI) a new to diagnose vitality. It contraction ability myocardium....
Knowledge about annuli shape and blood flow patterns, both optimally assessed by transesophageal 3D Doppler echocardiography, can be used in computer assisted surgical planning of heart valve reconstruction. Moreover, information the individual annulus anatomy guide design annular prostheses. The problem is that cannot easily differentiated from myocardium with standard visualization methods. We have developed a nearly automatic method for segmentation. algorithm provides symbolic...
Background: Three-dimensional (3D) ultrasound has a great potential in medical diagnostics. However, there are also some limitations of 3D ultrasound, e.g., situations morphology cannot be imaged accurately due to acoustical shadows. Acquiring datasets from multiple positions can overcome these limitations. Prior that calibration the probe is necessary. Most methods descibed rely on two-dimensional data. We describe method uses Methods: have developed based single-point cross-wire using...
Atrial fibrillation (AF) is the most common arrhythmia and results in an increased risk of ischemic stroke. Recently, a european consortium has developed new minimally invasive device for surgical AF treatment. It consists micro-robot holding end-effector called "umbrella" containing 22 radiofrequency powered electrodes. Surgery using this can only be performed having appropriate navigation technique. Therefore, we have image-based workflow prototypic application. First, including...