- Surgical Simulation and Training
- Anatomy and Medical Technology
- Colorectal Cancer Screening and Detection
- Augmented Reality Applications
- Bariatric Surgery and Outcomes
- Robotics and Sensor-Based Localization
- Optical Imaging and Spectroscopy Techniques
- Colorectal Cancer Surgical Treatments
- Artificial Intelligence in Healthcare and Education
- Esophageal and GI Pathology
- Radiomics and Machine Learning in Medical Imaging
- Diet and metabolism studies
- Healthcare Operations and Scheduling Optimization
- Cardiac, Anesthesia and Surgical Outcomes
- Gastroesophageal reflux and treatments
- Soft Robotics and Applications
- Medical Image Segmentation Techniques
- Minimally Invasive Surgical Techniques
- Medical Imaging Techniques and Applications
- AI in cancer detection
- Gallbladder and Bile Duct Disorders
- Advanced Image and Video Retrieval Techniques
- Advanced Radiotherapy Techniques
- Body Contouring and Surgery
- Lung Cancer Diagnosis and Treatment
Heidelberg University
2014-2023
University Hospital Heidelberg
2011-2023
Metropolitan University
2018
Nicolae Testemițanu State University of Medicine and Pharmacy
2017
Yeovil District Hospital NHS Foundation Trust
2017
Chirurgische Universitätsklinik Heidelberg
2016
University Hospital of Geneva
2016
Heidelberg University
2008-2015
BP (United Kingdom)
2015
DKFZ-ZMBH Alliance
2009
Surgical workflow and skill analysis are key technologies for the next generation of cognitive surgical assistance systems. These systems could increase safety operation through context-sensitive warnings semi-autonomous robotic or improve training surgeons via data-driven feedback. In up to 91% average precision has been reported phase recognition on an open data single-center video dataset. this work we investigated generalizability algorithms in a multicenter setting including more...
Intra-operative imaging techniques for obtaining the shape and morphology of soft-tissue surfaces in vivo are a key enabling technology advanced surgical systems. Different optical 3-D surface reconstruction laparoscopy have been proposed, however, so far no quantitative comparative validation has performed. Furthermore, robustness methods to clinically important factors like smoke or bleeding not yet assessed. To address these issues, we formed joint international initiative with aim...
<b><i>Background:</i></b> Obesity surgery has proven successful for weight loss and the resolution of comorbidities. There is, however, little evidence on its success risk complications when considering age onset obesity (AOO), years (YOO), preoperative body mass index (BMI), Edmonton staging system (EOSS) score, as possible predictors loss, comorbidities, complications. <b><i>Methods:</i></b> Patients who underwent Roux-en-Y gastric bypass...
Abstract Image-based tracking of medical instruments is an integral part surgical data science applications. Previous research has addressed the tasks detecting, segmenting and based on laparoscopic video data. However, proposed methods still tend to fail when applied challenging images do not generalize well they have been trained on. This paper introduces Heidelberg Colorectal (HeiCo) set - first publicly available enabling comprehensive benchmarking instrument detection segmentation...
This study compared virtual reality (VR) training with low cost-blended learning (BL) in a structured program. Training of laparoscopic skills outside the operating room is mandatory to reduce operative times and risks. Laparoscopy-naïve medical students were randomized 2 groups stratified for sex. The BL group (n = 42) used E-learning cholecystectomy (LC) practiced basic box trainers. VR trained LC on LAP Mentor II (Simbionix, Cleveland, OH). Each 3 × 4 hours followed by knowledge test...
Surprisingly, 40% to 95% of patients with type 2 diabetes mellitus (T2DM) show early remission hyperglycemia after obesity surgery. It is unknown what extent other diabetes-associated comorbidities such as distal peripheral neuropathy (DPN) might be influenced by This pilot study aimed at providing further evidence for the impact Roux-en-Y gastric bypass (RYGB) on both glycemic control and DPN in non-severely obese insulin-dependent T2DM.In present prospective cohort study, 20 long-standing,...
Purpose: Soft‐tissue deformations can severely degrade the validity of preoperative planning data during computer assisted interventions. Intraoperative imaging such as stereo endoscopic, time‐of‐flight or, laser range scanner be used to compensate these movements. In this context, intraoperative surface has matched model. The shape matching is especially challenging in setting due noisy sensor data, only partially visible surfaces, ambiguous descriptors, and real‐time requirements. Methods:...
Intraoperative tracking of laparoscopic instruments is often a prerequisite for computer and robotic-assisted interventions. While numerous methods detecting, segmenting medical based on endoscopic video images have been proposed in the literature, key limitations remain to be addressed: Firstly, robustness, that is, reliable performance state-of-the-art when run challenging (e.g. presence blood, smoke or motion artifacts). Secondly, generalization; algorithms trained specific intervention...
Increasing evidence shows that flaws in machine learning (ML) algorithm validation are an underestimated global problem. Particularly automatic biomedical image analysis, chosen performance metrics often do not reflect the domain interest, thus failing to adequately measure scientific progress and hindering translation of ML techniques into practice. To overcome this, our large international expert consortium created Metrics Reloaded, a comprehensive framework guiding researchers...
Multispectral imaging can provide reflectance measurements at multiple spectral bands for each image pixel. These be used estimation of important physiological parameters, such as oxygenation, which indicators the success surgical treatment or presence abnormal tissue. The goal this work was to develop a method estimate parameters in an accurate and rapid manner suited modern high-resolution laparoscopic images.While previous methods oxygenation are based on either simple linear complex...