%0 Journal Article %1 Mackenberg2016reflection %A Mackenberg, Martin %A Rackebrandt, Klaas %A Bollmeyer, Christian %A Wegerich, Philipp %A Gehring, Hartmut %A Hellbrück, Horst %D 2016 %J Biomedical Physics & Engineering Express %K RackebrandtKlaas WegerichPhilipp %N 6 %P 065003 %T Reflection and transmission of ultra-wideband pulses for detection of vascular pressure variation and spatial resolution within soft tissues %U http://dx.doi.org/10.1088/2057-1976/2/6/065003 %V 2 %X Ultra-wideband signals have a variety of applications. An upcoming medical application is the detection of the heart rate of patients. However, current UWB systems provide poor resolution and are only able to detect vessels with a large diameter, e.g. the aorta. The detection and quantification of vascular dilation of thinner vessels is essential to develop wearable ultra-wideband based devices for real-time detection of cardiovascular conditions of the extremities. The reflection and transmission processes of those signals within inhomogeneous bodies are complex and their prediction is challenging. In this paper, we present an experimental setup (UWB system; phantom) for the detection of vascular dilation within soft tissues. Furthermore, we suggest a theoretical simulation model for the prediction of the reflection of ultra-wideband pulses and compare these simulated predictions to results of measurements within the phantom. The results verify that we are able to identify vascular dilation within the simulation model and the experimental setup, depending on the depth of the vessel (20 mm, 40 mm, 60 mm).

@article{Mackenberg2016reflection, abstract = {Ultra-wideband signals have a variety of applications. An upcoming medical application is the detection of the heart rate of patients. However, current UWB systems provide poor resolution and are only able to detect vessels with a large diameter, e.g. the aorta. The detection and quantification of vascular dilation of thinner vessels is essential to develop wearable ultra-wideband based devices for real-time detection of cardiovascular conditions of the extremities. The reflection and transmission processes of those signals within inhomogeneous bodies are complex and their prediction is challenging. In this paper, we present an experimental setup (UWB system; phantom) for the detection of vascular dilation within soft tissues. Furthermore, we suggest a theoretical simulation model for the prediction of the reflection of ultra-wideband pulses and compare these simulated predictions to results of measurements within the phantom. The results verify that we are able to identify vascular dilation within the simulation model and the experimental setup, depending on the depth of the vessel (20 mm, 40 mm, 60 mm).}, added-at = {2016-11-23T14:38:43.000+0100}, author = {Mackenberg, Martin and Rackebrandt, Klaas and Bollmeyer, Christian and Wegerich, Philipp and Gehring, Hartmut and Hellbrück, Horst}, biburl = {https://www.bibsonomy.org/bibtex/239c647c9f8b10c4eed1d5af407403e1f/imt_bibsonomy}, interhash = {22bfd813e75b4fdc71c406fd3086f644}, intrahash = {39c647c9f8b10c4eed1d5af407403e1f}, journal = {Biomedical Physics & Engineering Express}, keywords = {RackebrandtKlaas WegerichPhilipp}, month = {11}, number = 6, pages = 065003, timestamp = {2016-11-24T08:48:25.000+0100}, title = {Reflection and transmission of ultra-wideband pulses for detection of vascular pressure variation and spatial resolution within soft tissues}, url = {http://dx.doi.org/10.1088/2057-1976/2/6/065003}, volume = 2, year = 2016 }