Institut für Medizintechnik und Medizininformatik
Dauerhafte URI für die Sammlunghttps://irf.fhnw.ch/handle/11654/23
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Ergebnisse nach Hochschule und Institut
Publikation Magnetic field measurements of portable electronic devices. The risk inside pockets for patients with cardiovascular implantable devices(American Heart Association, 15.03.2022) Féry, Corentin; Desombre, Adrien; Quirin, Thomas; Badertscher, Patrick; Sticherling, Christian; Knecht, Sven; Pascal, Joris01A - Beitrag in wissenschaftlicher ZeitschriftPublikation A novel assistive method for rigidity evaluation during deep brain stimulation surgery using acceleration sensors(American Association of Neurological Surgeons, 09/2017) Shah, Ashesh; Coste, Jérôme; Lemaire, Jean-Jaques; Schkommodau, Erik; Taub, Ethan; Guzman, Raphael; Hemm-Ode, Simone01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Patient-specific electric field simulations and acceleration measurements for objective analysis of intraoperative stimulation tests in the thalamus(Frontiers, 25.11.2016) Hemm-Ode, Simone; Pison, Daniela; Alonso, Fabiola; Shah, Ashesh; Coste, Jérôme; Lemaire, Jean-Jaques; Wårdell, Karin01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Erratum to “Lamb waves and adaptive beamforming for aberration correction in medical ultrasound imaging”(IEEE, 02/2021) Mozaffarzadeh, Moein; Minonzio, Claudio; De jong, Nico; Verweij, Martin; Hemm-Ode, Simone; Renaud, Guillaume; Daeichin, VeryaIn the above article [1] , we mentioned that the superposition of the different symmetric (S) modes in the frequency wavenumber (f-k) domain results in a high-intensity region where its slope corresponds to the longitudinal wave speed in the slab. However, we have recently understood that this high intensity region belongs to the propagation of a wave called lateral wave or head wave [2] – [5] . It is generated if the longitudinal sound speed of the aberrator (i.e., the PVC slab) is larger than that of water and if the incident wavefront is curved. When the incidence angle at the interface between water and PVC is near the critical angle, the refracted wave in PVC reradiates a small part of its energy into the fluid (i.e., the head wave). As discussed in [4] , if the thickness of the waveguide is larger than the wavelength, the first arriving signal is the head wave. This is also the case in our study [1] where the ultrasound wavelength of a compressional wave in PVC was close to 1 mm, and a PVC slab with a thickness of 8 mm was used.01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Investigation of structural resorption behavior of biphasic bioceramics with help of gravimetry, μCT, SEM, and XRD(07.05.2015) de Wild, Michael; Molenberg, Aart; Amacher, Fabienne; Chris, BradburyResorbable bone substitute materials are widely used for bone augmentation after tumor resection, parallel to implant placement, or in critical size bone defects. In this study, the structural dissolution of a biphasic calcium phosphate bone substitute material with a hydroxyapatite (HA)/tricalcium phosphate (ß-TCP) ratio of 60/40 was investigated by repeatedly placing porous blocks in EDTA solution at 37°C. At several time points, the blocks were investigated by SEM, µCT, and gravimetry. It was found that always complete 2–3 µm sized grains were removed from the structure and that the ß-TCP is dissolved more rapidly. This selective dissolution of the ß-TCP grains was confirmed by XRD measurements. The blocks were eroded from the outside toward the center. The structure remained mechanically stable because the central part showed a delayed degradation and because the slower dissolving HA grains preserved the integrity of the structure.01A - Beitrag in wissenschaftlicher Zeitschrift