NDLI: Measurement and analysis of internal stress distributions created in gelatin simulated-brain tissue by a pulsed laser-induced liquid jet

Content Provider	IEEE Xplore Digital Library
Author	Kato, T. Arafune, T. Washio, T. Nakagawa, A. Ogawa, Y. Tominaga, T. Sakuma, I. Kobayashi, E.
Copyright Year	2014
Description	Author affiliation: Dept. of Neurosurg., Kohnan Hosp., Sendai, Japan (Ogawa, Y.) \|\| Sch. of Eng., T he Univ. of Tokyo, Tokyo, Japan (Kato, T.; Sakuma, I.; Kobayashi, E.) \|\| Dept. of Neurosurg., To hoku Univ., Sendai, Japan (Nakagawa, A.; Tominaga, T.) \|\| Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan (Washio, T.) \|\| Grad. Sch. of Sci. & Eng., Tokyo Denki Univ., Saitama, Japan (Arafune, T.)
Abstract	Transsphenoidal surgery is currently employed to treat complex lesions beyond the sella turcica; however, the procedure can be limited by difficulties encountered in dealing with small blood vessels, deep and narrow working spaces, and awkward working angles. To overcome these problems, we have developed a pulsed laser-induced liquid jet system that can dissect tumor tissue while preserving fine blood vessels within deep and narrow working spaces. We have previously evaluated the utility and safety of this procedure. However, the effects of the pulsejet after being injected into the brain are not yet well understood. Especially, the behavior of the stress distribution created by the jet is important because it has recently been reported that high acoustic pressures can affect the brain. In this study, we measured internal stress distributions in a gelatin simulated-brain using photoelasticity experiments. We used a high-speed camera with an image sensor on which an array of micropolarizers was attached to measure the stresses and the shear wave created when the pulsejet enters the simulated brain.
Sponsorship	IEEE Eng. Med. Biol. Soc.
Starting Page	4419
Ending Page	4422
File Size	2752213
Page Count	4
File Format	PDF
ISBN	9781424479290
ISSN	1557170X
DOI	10.1109/EMBC.2014.6944604
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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