Based On Digital Human Sectional Anatomy Of The Temporal Bone And The Visualization Model Study

Objective: On the temporal bone to sectional anatomy and imaging-control study, construction of PC-based 3D visualization of the temporal bone model, preliminary exploration of the function of the model, Clarify the anatomy of the temporal bone structure and the distribution of spatial relations ,for the temporal bone anatomy teaching, and clinical treatment of ear surgery figures provided by the choice of three-dimensional anatomical basis.Methods : Choose eye surface without physical trauma and deformities, the CT and MRI without organ defects and organic diseases of the human body specimens one case of women, 22 years old, height 162 cm, weight 54 kg. The images with thickness of 1mm of multislice spiralCT (MSCT) was obtained by mufti-planar reconstrution(MPR) based onthe superior orbitomeatal line.After mufti-slice CT isotropic scan, thehead specimens were embeded with galetin and freezed in the freezerunder the temperature of -400C.Based on the superior orbitomeatal line,the specimens were sliced into continuous sections with thickness of 0.25mm on transversal plane using the computerized miller.The picturesof the sections were taken by digital camera. The sectional data wassaved in computer.The thin transversal sectional anatomy of thestructures within the temporal bone were investigated and contrastedwith multislice spiral CT images acquired by MPR technique. A three-d-doctor software to reconstruct part of the temporal bone and internal structure, In the inner ear model measuring door to the midpoint of the bone lip footing and jugular bulb from the top.Results: From the section appearing the superior border of thepetrous part of the temporal bone to the section disappearing the tip ofthe mastoid process, specimen was sliced into 124 continuous sections with the thickness of 0.25 mm on transversal plane separately, 31 MSCT images with thickness of 1mm was acquired respectively. Comparing the thin transversal sectional anatomyof the temporal bone with the same specimens MSCT images, we knowthat thin sections of the temporal bone can clearly delineate theanatomical details of the temporal bone and their relationships.l0important anatomic structure within the temporal bone were evaluated,the morphological characteristics of the key structures of the temporalbone were described using 10 continuous transversal cryosections and MSCT images reconstructed by MPR. The establishment of the temporal bone visualization model, osseous labyrinth, such as micro-structure is not ideal, Measurement of the inner ear through the model, after the midpoint of the common bony crus and jugular bulb from the top of the 7.0 mm respectively, 10.3mm.Conclusion: (1)Research shows that Digitized visible human image and profile data sets corresponding to the CT image of a good relationship, The former for the latter to provide a complete and clear anatomical basis for the fault.(2) Virtual human data can be reconstructed osseous labyrinth, facial nerve trunk, and the vestibular nerve trunk, such as cochlear fine structure visualization model. This model relations in the structure adjacent to the display, intuitive and easy to quantify positioning measurement of the structure has advantages such as functional.