Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Holger Hewener"'
Publikováno v:
Sensors, Vol 22, Iss 7, p 2789 (2022)
The reliable assessment of muscle states, such as contracted muscles vs. non-contracted muscles or relaxed muscles vs. fatigue muscles, is crucial in many sports and rehabilitation scenarios, such as the assessment of therapeutic measures. The goal o
Externí odkaz:
https://doaj.org/article/83f712a742a6401597b388b030a79461
Autor:
Lukas Brausch, Ruth Dirksen, Christoph Risser, Martin Schwab, Carole Stolz, Steffen Tretbar, Tilman Rohrer, Holger Hewener
Publikováno v:
Applied Sciences, Vol 12, Iss 7, p 3361 (2022)
X-ray imaging, based on ionizing radiation, can be used to determine bone age by examining distal growth plate fusion in the ulna and radius bones. Legal age determination approaches based on ultrasound signals exist but are unsuitable to reliably de
Externí odkaz:
https://doaj.org/article/8efe3a5db7854b87acc20f6f50613bfd
Autor:
Marc Fournelle, Tobias Grün, Daniel Speicher, Steffen Weber, Mehmet Yilmaz, Dominik Schoeb, Arkadiusz Miernik, Gerd Reis, Steffen Tretbar, Holger Hewener
Publikováno v:
Sensors, Vol 21, Iss 19, p 6481 (2021)
We developed a new mobile ultrasound device for long-term and automated bladder monitoring without user interaction consisting of 32 transmit and receive electronics as well as a 32-element phased array 3 MHz transducer. The device architecture is ba
Externí odkaz:
https://doaj.org/article/614f394b9cfc45cfa80e4d30eb6fc55f
Autor:
Christoph Risser, Holger Hewener, Marc Fournelle, Heinrich Fonfara, Selina Barry-Hummel, Steffen Weber, Daniel Speicher, Steffen Tretbar
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 5795 (2021)
Volumetric ultrasound imaging is of great importance in many medical fields, especially in cardiology, but also in therapy monitoring applications. For development of new imaging technologies and scanning strategies, it is crucial to be able to use a
Externí odkaz:
https://doaj.org/article/d2da1197fc1a464ba443eb468d577bae
Publikováno v:
Current Directions in Biomedical Engineering, Vol 7, Iss 2, Pp 554-557 (2021)
High-Intensity Focused Ultrasound (HIFU) is an alternative tumour therapy with the ability for non-invasive thermal ablation of tissue. For a safe application, the heat deposition needs to be monitored over time, which is currently done with Magnetic
Autor:
Holger Hewener, Steffen Tretbar
Publikováno v:
2021 IEEE International Ultrasonics Symposium (IUS).
Ultrafast ultrasound imaging allows total focusing on every pixel, but it uses a non-focusing transmission of the ultrasonic wave into the tissue. Based on plane wave or diverging wave imaging, additional clutter reduces the imaging quality especiall
Publikováno v:
IEEE IUS 2021
2021 IEEE International Ultrasonics Symposium (IUS)
2021 IEEE International Ultrasonics Symposium (IUS)
We developed a 2D matrix array for later use in transperineal volumetric ultrasound imaging in the context of radiation dose monitoring. In the envisioned applications, radiation-sensitive microbubbles shall induce changes in the (spectral) reflectio
Autor:
Steffen Tretbar, Steffen Weber, Heinrich Fonfara, Holger Hewener, Selina Barry-Hummel, Daniel Speicher, Christoph Risser, Marc Fournelle
Publikováno v:
Applied Sciences
Volume 11
Issue 13
Applied Sciences, Vol 11, Iss 5795, p 5795 (2021)
Volume 11
Issue 13
Applied Sciences, Vol 11, Iss 5795, p 5795 (2021)
Volumetric ultrasound imaging is of great importance in many medical fields, especially in cardiology, but also in therapy monitoring applications. For development of new imaging technologies and scanning strategies, it is crucial to be able to use a
Autor:
Marc Fournelle, Steffen Tretbar, Holger Hewener, Heinrich Fonfara, Selina Barry-Hummel, Christoph Risser
Publikováno v:
2020 IEEE International Ultrasonics Symposium (IUS).
Volumetric ultrasound imaging is of most importance not only for real time cardiac imaging and quantization of flow but also for niche applications like motion tracking and robust 3D microbubble tracing. In ultrasound research, the use of fully conne
Publikováno v:
2019 IEEE International Ultrasonics Symposium (IUS).
Human trafficking for the purpose of sexual exploitation is a problem worldwide and the proportion of underage victims is significant. To identify the minority of a person, the measurement of bone age using X-ray imaging is the gold-standard procedur