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  • 1
    Electronic Resource
    Electronic Resource
    Development of the operating computerized tomographic scanner system for neurosurgery (1991)
    Springer
    Acta neurochirurgica 111 (1991), S. 61-63 
    Details
    ISSN: 0942-0940
    Keywords: Computerized tomography ; neurosurgery ; clinical imaging ; operating room
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A computerized tomographic (CT) scanner system for intraoperative imaging is presented. The system consists of the following: 1) CT scanner with a mobile gantry, 2) digitally controlled operating table with central processing unit (CPU) and encoder unit; the table can be controlled by the scanner computer as accurately as the scanner bed, and 3) exclusively designed head fixation devices. It allows us to scan the patient on the operating table in the operating room pre-operatively, intra-operatively and immediately after surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402515
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A newly designed attachment device of multipurpose frame for neuronavigator (1994)
    Springer
    Acta neurochirurgica 129 (1994), S. 97-99 
    Details
    ISSN: 0942-0940
    Keywords: Multipurpose head frame ; neuronavigator ; stereotaxis ; instrumentation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A newly designed attachment device of the multipurpose head frame (Sugita) for Neuronavigator (Watanabe) is presented with an illustrative case of glioblastoma in an eloquent area. This has extended the usefulness of the neuronavigator for those who prefer and use the multipurpose head frame, while the requirements for keeping a stereotactic combination and the original concept of the multipurpose head frame, as well as that of the neuronavigator have been kept undisturbed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01400881
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A simple three-dimensional display model based on recorded CT scan films for surgical reference technical note (1984)
    Springer
    Acta neurochirurgica 71 (1984), S. 47-53 
    Details
    ISSN: 0942-0940
    Keywords: Surgical instrument ; computerized tomography (CT) ; intracranial mass lesion ; brain tumour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A simple method of making a three-dimensional display model of recorded computerized tomography (CT) scan films is presented. The reconstructed display model provides useful information as to surgical approaches to intracranial mass lesions. The actual size and three dimensional shape of a lesion and its topographical relationship to surrounding brain structures are easily grasped by directly handling this model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401150
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    New radiolucent head fixation made of engineering plastics for intraoperative CT scanning (1994)
    Springer
    Acta neurochirurgica 127 (1994), S. 121-123 
    Details
    ISSN: 0942-0940
    Keywords: Instrumentation ; head fixation ; intraoperative CT ; open neurosurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A newly developed head fixation for intraoperative computerized tomographic (IOCT) scanning is presented. The system is developed based on the head holder of multipurpose head frame and is made of two kinds of advanced engineering material; carbon fiber reinforced plastic for head holder and frames, polyamide-imide polymer for joints, screws, and head pin. Clinical tests including autoclaving and sterilization were performed and revealed all materials had sufficient strength for clinical use. This fixation system enables us to increase the efficacy of IOCT scanning during open-field neurosurgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01808559
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Brain spatula with transparent tip: Technical note (1997)
    Springer
    Acta neurochirurgica 139 (1997), S. 977-978 
    Details
    ISSN: 0942-0940
    Keywords: Instrumentation ; brain spatula ; microneurosurgery ; transparency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A newly developed brain spatula with transparent tip for brain retraction is introduced. The high-molecular polymer plastic material is used only for the tip of the new spatula whilst rest of the spatula is made up of the ordinary malleable metal. The transparent nature of the spatula tip helps us in observing the retracted brain vessels and cranial nerves in continuity with the main operating area. The extent of distortion as a result of the retraction can be directly observed assisting in prevention of an inadvertent injury. The new brain spatula with transparent tip is helpful for microneurosurgery under high magnification. Various shapes and sizes of the spatula can be used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411308
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Temperature dependence of structure parameters in natural magnetite: single crystal X-ray studies from 126 to 773 K (1996)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 450-457 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Structural parameters and their thermal changes in natural magnetite, Fe3O4, have been studied using the single-crystal X-ray diffraction method in the temperature range 126–773 K. The cell dimensions, oxygen coordinate and atomic mean square displacements (m.s.d.'s) reversibly change as a function of temperature. The coordinate of oxygen remains almost constant at x = 0.2549 (1) below 6̃00 K, but increases with increasing temperature above this temperature. This characteristic behavior of the oxygen coordinate with temperature indicates that the cation disordering over the tetrahedral (A) and octahedral (B) cation sites occurs above 600 K. All atomic m.s.d.'s increase monotonously with temperature rise. The m.s.d.'s of the B atom show a unique temperature dependence. At lower temperatures the B atom prefers to vibrate along [111], but this preference is reduced with a temperature rise up to 630 K, above which the m.s.d. normal to [111] becomes dominant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768196000845
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Endovascular treatment of basilar trunk aneurysm associated with fenestration of the basilar artery (1999)
    Springer
    Neurosurgical review 22 (1999), S. 219-221 
    Details
    ISSN: 1437-2320
    Keywords: Key words Aneurysm ⋅ Anomalies ⋅ Basilar artery ⋅ Endovascular therapy ⋅ Embolization ⋅ Interventional neuroradiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Basilar trunk saccular aneurysms associated with fenestration are infrequent, especially in the middle or distal portion of the basilar artery. Surgical treatment of the basilar trunk aneurysm is difficult, due to its anatomical environment and the complicated surgical exposure. A 46-year-old woman presenting with Hunt and Kosnik grade II subarachnoid hemorrhage was found to have a ruptured aneurysm arising at the proximal corner of the associated fenestration in the middle portion of the basilar artery. Because of surgical difficulties anticipated in approaching the aneurysm, it was decided to treat it with endovascular embolization utilizing the Guglielmi detachable coil; and complete occlusion of the aneurysm was obtained. The efficacy of endovascular treatment for the basilar trunk aneurysm with associated fenestration is discussed from anatomical and embryological points of view, and relevant literature is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101430050020
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    Paper (German National Licenses)
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