Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Johannes W Krug"'
Publikováno v:
Journal of Sensor Technology. :39-51
Magnetic resonance imaging (MRI) systems require a cooling close to the absolute zero point. This is necessary to avoid thermal losses due to the extremely high currents in the coils of the electromagnet used to generate the static magnetic field. Th
Publikováno v:
Current Directions in Biomedical Engineering, Vol 2, Iss 1, Pp 255-258 (2016)
During magnetic resonance imaging (MRI), a patient’s vital signs are required for different purposes. In cardiac MRI (CMR), an electrocardiogram (ECG) of the patient is required for triggering the image acquisition process. However, a reliable QRS
Publikováno v:
Current Directions in Biomedical Engineering, Vol 2, Iss 1, Pp 427-431 (2016)
Susceptibility artefacts in magnetic resonance imaging (MRI) caused by medical devices can result in a severe degradation of the MR image quality. The quantification of susceptibility artefacts is regulated by the ASTM standard which defines a manual
Publikováno v:
Current Directions in Biomedical Engineering, Vol 2, Iss 1, Pp 175-178 (2016)
The electrocardiogramm (ECG) is the state-of-the-art signal for gating in cardiovascular magnetic resonance imaging and patient monitoring. Using the ECG for gating and monitoring during the magnetic resonance imaging examination is a high challengin
Publikováno v:
Current Directions in Biomedical Engineering, Vol 2, Iss 1, Pp 719-722 (2016)
During a magnetic resonance imaging (MRI) exam, a respiratory signal can be required for different purposes, e.g. for patient monitoring, motion compensation or for research studies such as in functional MRI. In addition, respiratory information can
Autor:
Johannes W Krug, Emad M. Boctor, Jens Ziegle, Michael Friebe, Younsu Kim, Chloé Audigier, Ghazanfar Ali
Publikováno v:
International journal of computer assisted radiology and surgery. 13(6)
Radiofrequency (RF) ablation with mono- or bipolar electrodes is a common procedure for hepatocellular carcinoma (HCC) with a low rate of recurrence for small size tumors. For larger lesions and/or non-round/ellipsoid shapes RF ablation has some limi
Publikováno v:
Current Directions in Biomedical Engineering, Vol 1, Iss 1, Pp 61-64 (2015)
For a variety of clinical applications like magnetic resonance imaging (MRI) the monitoring of vital signs is a common standard in clinical daily routine. Besides the electrocardiogram (ECG), the respiratory activity is an important vital parameter a
Publikováno v:
CinC
Magnetic resonance imaging (MRI) is an imaging technique widely used in medical diagnostics as well as in minimally invasive, image guided interventions. During an MRI scan, the patient's electrocardiogram (ECG) can be required for either gating or p
Publikováno v:
EUSIPCO2017
EUSIPCO2017, Aug 2017, Kos, Greece
EUSIPCO
25th European Signal Processing Conference, EUSIPCO 2017
EUSIPCO2017, Aug 2017, Kos, Greece
EUSIPCO
25th European Signal Processing Conference, EUSIPCO 2017
In this paper, a strategy is proposed to estimate the R-peaks in ECG signals recorded inside a 7 T magnetic resonance imaging (MRI) scanner in order to reduce the disturbances due to the magnetohydrodynamic (MHD) effect and to finally obtain high qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4847eeb49b643f9bec660217f18e4e
https://hal.archives-ouvertes.fr/hal-01580921
https://hal.archives-ouvertes.fr/hal-01580921
Publikováno v:
EMBC
The main purpose of this work is to present a simple quantitative approach for assessing artifacts in passive instruments when used in an MRI environment. It is mainly based on a quantitative indicator related with the amount of distortion produced b