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Application of endoscopic ultrasonography to intraventricular lesions

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Title: Application of endoscopic ultrasonography to intraventricular lesions
Authors: Motegi, Hiroaki Browse this author
Kobayashi, Hiroyuki Browse this author
Terasaka, Shunsuke Browse this author →KAKEN DB
Yamaguchi, Shigeru Browse this author
Ishi, Yukitomo Browse this author
Ito, Yasuhiro Browse this author
Houkin, Kiyohiro Browse this author →KAKEN DB
Keywords: Intraventricular lesion
Flexible endoscopy
Endoscopic ultrasonography
Real-time ultrasonic guidance
Issue Date: Jan-2016
Publisher: Springer Vienna
Journal Title: Acta neurochirurgica
Volume: 158
Issue: 1
Start Page: 87
End Page: 92
Publisher DOI: 10.1007/s00701-015-2617-z
PMID: 26542528
Abstract: Background: Anatomical landmarks such as choroid plexus and foramen of Monro are very important to undergo intraventricular surgery safely and effectually. These landmarks would be unclear in cases with a huge cyst or repeat surgery. We report the usability and precautions to apply a bronchoscope with an ultrasonic convex probe to intraventricular surgery. Methods: Two patients diagnosed with obstructive hydrocephalus, one with a large cyst and the other with recurrent craniopharyngioma in the third ventricle, were applied to the EBUS system. Results: In both patients, the EBUS system was applied safely, and lesions beyond the wall of ventricles or the cyst were visible. Color Doppler ultrasonography detected choroid plexus and internal cerebral veins. Furthermore, we performed real-time ultrasound-guided cyst puncture safely on the case with a large cyst. The most important precaution is that the curved portion of the EBUS system is too long to be bent within cerebral ventricles. Conclusions: The new EBUS system with an ultrasonic convex probe is a novel and effectual device to perform intraventricular surgery.
Rights: The final publication is available at Springer via
Type: article (author version)
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 茂木 洋晃

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