Multiple risk scores to predict ischaemic stroke (IS) in patients with atrial fibrillation (AF) have been developed. This study aims to systematically review these scores, their validations and updates, assess their methodological quality, and calculate pooled estimates of the predictive performance. We searched PubMed and Web of Science for studie...
Published in International journal of computer assisted radiology and surgery
Development of an algorithm to self-calibrate arbitrary CBCT trajectories which can be used to reduce metal artifacts. By using feature detection and matching we want to reduce the amount of parameters for the BFGS optimization and thus reduce the runtime. Each projection is 2D-3D registered on a prior image with AKAZE feature detection and brute f...
Published in Ultrasound in medicine & biology
This article describes a method used to calibrate 3-D freehand ultrasound systems based on phantoms with parallel wires forming two perpendicular planes, such as the usual general-purpose commercial phantoms. In our algorithm, the phantom pose is co-optimized with the calibration to avoid the need to precisely track the phantom. We provide a geomet...
Published in IOP Conference Series: Materials Science and Engineering
The transducers which are used for measuring force or weight are also called load cells. Most of those transducers use strain gauges to measure the applied force. In this paper, a calibration of a double aluminium bar with strain gauges attached is conducted in order to determine the major sources of error in the measurement process. The authors ex...
Although fault injection is a powerful technique to exploit implementation weaknesses, this is not without limitations. An important preliminary step, based on rigorous calibration of the fault injection equipment, greatly affects the accuracy and repeatability of the results. Even if equipment calibration can be performed directly with the target ...
After the Higgs discovery in 2012 by ATLAS and CMS at LHC, precision measurements and Higgs couplings are important for validation of the Standard model (SM), but also for search of new physics Beyond the Standard Model (BSM), as any deviation from the SM prediction can indicate the presence of new physics. This thesis presents a work on the calibr...
status: accepted
Published in International journal of computer assisted radiology and surgery
Hybrid navigation is a promising technique which combines the benefits of optical or electromagnetic tracking (EMT) and fluoroscopy imaging. Unfortunately, the fluoroscopy system is a source of metallic distortion for the EMT system. In this work, we present a new method for intraoperative calibration and real-time compensation of dynamic field dis...
We present a systematic and automated stepwise method to calibrate computational models of the spine. For that purpose, a sequential resection study on one lumbar specimen (L2-L5) was performed to obtain the individual contribution of the IVD, the facet joints and the ligaments to the kinematics of the spine. The experimental data was prepared for ...
Published in Annals of Laboratory Medicine
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is increasingly utilized in clinical laboratories because it has advantages in terms of specificity and sensitivity over other analytical technologies. These advantages come with additional responsibilities and challenges given that many assays and platforms are not provided to laboratories ...
