Clues to quality of journals
Open Access Policy of Helmholtz Association 2016
CC Licencences
Publication Metrics
Home
Deutsch
New EVA Application
Advanced Search
Browse by ...
Publication overview
Statistics (last 5 years)
OA Publications
Submit Publication
Import publication from...
Report missing publication
Contact persons
Help
Text
Endnote (RIS)
BibTeX
DOI
 |
|
as soon as is submitted to ZB.
Looking at the skull in a new light: Rayleigh-Lamb waves in cranial bone.
In: (IEEE International Ultrasonics Symposium, IUS 2018, 22-25 October 2018, Kobe; Japan). 2018.:8580113
Current knowledge on the ultrasound wave propagation in the cranial bone is restricted to far-field observations. In order to extend our understanding on how ultrasound waves propagate in the skull, we use short laser pulses to excite ultrasound waves in water-immersed ex vivo mouse and human skulls and explored their near-field. The laser pulses (10 ns duration) of 532 nm are absorbed by a small layer of black burnish deposited on the skull's inner surface and generate ultrasound waves due to the thermoelastic effect. The acoustic near-field is mapped using a needle hydrophone close to the skull surface, following a three-dimensional scanning path derived from a previous pulse-echo scan of the skull with a spherically focused ultrasound transducer. The results for mouse and human skulls show different wave propagation regimes according to their differences in size, thickness, and internal structure. Leaky and non-leaky waves have been observed for both skull samples. Zero order Lamb modes were observed in the mouse skull, whereas Rayleigh-Lamb higher order modes can be observed in the human skull sample, presumably propagating in the outer cortical bone layer. Good agreement is found between the experiments and the multilayered flat plate model.
Scopus
Cited By
Cited By
Altmetric
6
Annotations
Special Publikation
Hide on homepage
Publication type
Article: Conference contribution
Keywords
Lamb Waves ; Laser Ultrasonics ; Near Field ; Plate Waves ; Rayleigh Waves ; Skull Bone ; Surface Acoustic Waves
Language
english
Publication Year
2018
HGF-reported in Year
2018
ISSN (print) / ISBN
1948-5719
e-ISSN
1948-5727
Conference Title
IEEE International Ultrasonics Symposium, IUS 2018
Conference Date
22-25 October 2018
Conference Location
Kobe; Japan
Quellenangaben
Article Number: 8580113
Institute(s)
Institute of Biological and Medical Imaging (IBMI)
POF-Topic(s)
30205 - Bioengineering and Digital Health
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-505590-001
Scopus ID
85060627090
Erfassungsdatum
2019-02-04