The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Huang Weining - One of the best experts on this subject based on the ideXlab platform.
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A clinical anatomical study on identification of the internal auditory meatus in middle cranial fossa approach
Chinese Archives of Otolaryngology-head and Neck Surgery, 2008Co-Authors: Huang WeiningAbstract:OBJECTIVE The head of malleus (HOM) was regarded as the landmark for the middle cranial fossa approach,and its relationship with internal auditory meatus(IAM) was measured. The purpose of this study was to find a safe method to locate IAM. METHODS Twelve heads of adult cadaver fixed with 10 % formaldehyde (23 sides) were microsurgically dissected from the middle cranial fossa approach. The foramen spinosum,Ferrein's foramen,greater Petrosal Nerve,Lesser Petrosal Nerve,facial Nerve,HOM,arcuate eminence,superior Petrosal sinus,semicircular canal,and IAM were exposed. First,blue lines method was used to locate IAM. Second,HOM as the landmark was used to locate IAM. RESULTS The angles between the SSC and the longitude axis of IAM are 58.52°±4.84°。 A perpendicular line (AB) was drew from the center of HOM to the longitude axis of the temporal bone (the longitude axis of the superior Petrosal sinus),line BC was drew from the anterior 30°(28.93°± 6.07°) to the line AB. On the line BC,fundus of IAM can be located (6.69±1.10) mm medial to HOM,the center of the internal acoustic pore can be located (20.1±1.48)mm medial to HOM. CONCLUSION In the middle cranial fossa surgery,HOM can be used to locate IAM and its surroundings structures when traditional landmarks are unrecognized.
Ronald L A W Bleys - One of the best experts on this subject based on the ideXlab platform.
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Main trajectories of Nerves that traverse and surround the tympanic cavity in the rat
Journal of Anatomy, 2000Co-Authors: J. A. W. M. Weijnen, S. Surink, M. J. M. Verstralen, Albert Moerkerken, Godelieve J De Bree, Ronald L A W BleysAbstract:To guide surgery of Nerves that traverse and surround the tympanic cavity in the rat, anatomical illustrations are required that are topographically correct. In this study, maps of this area are presented, extending from the superior cervical ganglion to the otic ganglion. They were derived from observations that were made during dissections using a ventral approach. Major blood vessels, bones, transected muscles of the tongue and neck and supra and infrahyoid muscles serve as landmarks in the illustrations. The course of the mandibular, facial, glossopharyngeal, vagus, accessory and hypoglossal Nerves with their branches, and components of the sympathetic system, are shown and discussed with reference to data available in the literature. Discrepancies in this literature can be clarified and new data are presented on the trajectories of several Nerves. The course of the tympanic Nerve was established. This Nerve originates from the glossopharyngeal Nerve, enters the tympanic cavity, crosses the promontory, passes the tensor tympani muscle dorsally, and continues its route intracranially to the otic ganglion as the Lesser Petrosal Nerve after intersecting with the greater Petrosal Nerve. Auricular branches of the glossopharyngeal and of the vagus Nerve were noted. We also observed a pterygopalatine branch of the internal carotid Nerve, that penetrates the tympanic cavity and courses across the promontory.
J. A. W. M. Weijnen - One of the best experts on this subject based on the ideXlab platform.
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Main trajectories of Nerves that traverse and surround the tympanic cavity in the rat
Journal of Anatomy, 2000Co-Authors: J. A. W. M. Weijnen, S. Surink, M. J. M. Verstralen, Albert Moerkerken, Godelieve J De Bree, Ronald L A W BleysAbstract:To guide surgery of Nerves that traverse and surround the tympanic cavity in the rat, anatomical illustrations are required that are topographically correct. In this study, maps of this area are presented, extending from the superior cervical ganglion to the otic ganglion. They were derived from observations that were made during dissections using a ventral approach. Major blood vessels, bones, transected muscles of the tongue and neck and supra and infrahyoid muscles serve as landmarks in the illustrations. The course of the mandibular, facial, glossopharyngeal, vagus, accessory and hypoglossal Nerves with their branches, and components of the sympathetic system, are shown and discussed with reference to data available in the literature. Discrepancies in this literature can be clarified and new data are presented on the trajectories of several Nerves. The course of the tympanic Nerve was established. This Nerve originates from the glossopharyngeal Nerve, enters the tympanic cavity, crosses the promontory, passes the tensor tympani muscle dorsally, and continues its route intracranially to the otic ganglion as the Lesser Petrosal Nerve after intersecting with the greater Petrosal Nerve. Auricular branches of the glossopharyngeal and of the vagus Nerve were noted. We also observed a pterygopalatine branch of the internal carotid Nerve, that penetrates the tympanic cavity and courses across the promontory.
Shizhen Zhong - One of the best experts on this subject based on the ideXlab platform.
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applied anatomy of abut structures of internal auditory meatus iam through middle cranial fossa approach
Journal of clinical otorhinolaryngology, 2002Co-Authors: Hexin Chen, Shizhen ZhongAbstract:OBJECTIVE To provide anatomical basis for operation of internal auditory meatus(IAM). Correlation structures with IAM were measured according to sign of hiatus of facial Nerve. METHOD These structures include spinous foramen, superficial geater Petrosal Nerve, superficial Lesser Petrosal Nerve, hiatus of facial Nerve were measured on 24 wet cranial bone (48 sides). RESULT It is demonstrated that 8.3% geniculate ganglion and labyrinth segment of facial Nerve Variation which distance from hiatus of facial Nerve to geniculate ganglion is distinct. CONCLUSION Our data will be very holpful for location of IAM during operation via middle cranial fossa approach.
S. Surink - One of the best experts on this subject based on the ideXlab platform.
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Main trajectories of Nerves that traverse and surround the tympanic cavity in the rat
Journal of Anatomy, 2000Co-Authors: J. A. W. M. Weijnen, S. Surink, M. J. M. Verstralen, Albert Moerkerken, Godelieve J De Bree, Ronald L A W BleysAbstract:To guide surgery of Nerves that traverse and surround the tympanic cavity in the rat, anatomical illustrations are required that are topographically correct. In this study, maps of this area are presented, extending from the superior cervical ganglion to the otic ganglion. They were derived from observations that were made during dissections using a ventral approach. Major blood vessels, bones, transected muscles of the tongue and neck and supra and infrahyoid muscles serve as landmarks in the illustrations. The course of the mandibular, facial, glossopharyngeal, vagus, accessory and hypoglossal Nerves with their branches, and components of the sympathetic system, are shown and discussed with reference to data available in the literature. Discrepancies in this literature can be clarified and new data are presented on the trajectories of several Nerves. The course of the tympanic Nerve was established. This Nerve originates from the glossopharyngeal Nerve, enters the tympanic cavity, crosses the promontory, passes the tensor tympani muscle dorsally, and continues its route intracranially to the otic ganglion as the Lesser Petrosal Nerve after intersecting with the greater Petrosal Nerve. Auricular branches of the glossopharyngeal and of the vagus Nerve were noted. We also observed a pterygopalatine branch of the internal carotid Nerve, that penetrates the tympanic cavity and courses across the promontory.