نتایج جستجو برای: characteristics keyhole

تعداد نتایج: 662214  

2016
Douglas H. Macdonald

This paper provides a summary of current data regarding the age, geographical distribution, and function of keyhole structures in the upper Susquehanna River Valley of north-central Pennsylvania and south-central New York. Keyhole structures have been identified at 11 sites in the West and North Branches of the Susquehanna River Valley. The feature type likely originated in the West Branch Vall...

Journal: :The Journal of laryngology and otology 2011
C Stieger M Caversaccio A Arnold G Zheng J Salzmann D Widmer N Gerber M Thurner C Nauer Y Mussard M Kompis L P Nolte R Häusler S Weber

OBJECTIVE To present the auditory implant manipulator, a navigation-controlled mechanical and electronic system which enables minimally invasive ('keyhole') transmastoid access to the tympanic cavity. MATERIALS AND METHODS The auditory implant manipulator is a miniaturised robotic system with five axes of movement and an integrated drill. It can be mounted on the operating table. We evaluated...

Journal: :Magnetic resonance in medicine 2001
M Zaitsev K Zilles N J Shah

Time-dependent phenomena are of great interest, and researchers have sought to shed light on these processes with MRI, particularly in vivo. In this work, a new hybrid technique based on EPI and using the concept of keyhole imaging is presented. By sharing peripheral k-space data between images and acquiring the keyhole more frequently, it is shown that the spatial resolution of the reconstruct...

Journal: :Turkish neurosurgery 2013
Chao Tang Jun Sun Hongli Xue Yong Yu Feng Xu

AIM Supraorbital keyhole approach provides access to the major part of the anterior circulation aneurysms. Herein, our surgical experience of supraorbital keyhole approach and its some modification have been proposed. MATERIAL AND METHODS Out of a series of 76 patients harboring 80 aneurysms operated on via a supraorbital keyhole approach with a superciliar or front wrinkle skin incision, the...

Journal: :Turkish neurosurgery 2016
Yi Feng Jianqing He Bin Liu Likun Yang Yuhai Wang

AIM Hypertensive cerebral hemorrhage (HCH) is a potentially life-threatening cerebrovascular disease with high mortality. In case of a massive hematoma, surgical drainage is a crucial treatment. The aim of the present study was to assess the efficacy of the endoscope-assisted keyhole technique in elderly patients with intracerebral hematoma who needed a flap craniotomy as traditional treatment....

2015
Yi FENG Jianqing HE Bin LIU Likun YANG Yuhai WANG

AIm: Hypertensive cerebral hemorrhage (HCH) is a potentially life-threatening cerebrovascular disease with high mortality. In case of a massive hematoma, surgical drainage is a crucial treatment. The aim of the present study was to assess the efficacy of the endoscopic-assisted keyhole technique in elderly patients with intracerebral hematoma who needed a flap craniotomy as traditional treatmen...

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