The thin sectional anatomy of the temporal bone correlated with multislice spiral CT

Abstract

The aim of this study was to explore the method for obtaining the thin sectional anatomy data of the adult temporal bone and study the fine structures using this method. Three fresh adult cadaveric heads were scanned with multi-slice computer tomography (MSCT) centered on petrous bones. The CT images of 0.6 mm were obtained by multi-planar reformation (MPR). The slices of 0.1 mm were shaved off the specimen in the axial direction with the numerical control milling machine after being embedded and frozen, pictures of which were taken by the digital camera and saved in the computer. The thin axial sectional anatomic structures of the intra-temporal were investigated and correlated with MPR images. Via the comparison, fifty micro-anatomic structures of the temporal bone that can't be delineated clearly or missed in the thick sections were evaluated. The anatomical details of the temporal bone can be clearly delineated in MSCT in sub-millimeter and were identical to those in sectional anatomy images. This method can supply anatomical details that had been missed or overlooked for imaging diagnosis and surgical anatomy.

Using Clinical and Multislice Computer Tomographic Features to Assess Temporomandibular Joint Osseous Involvement in Rheumatoid Arthritis: A Preliminary Study

“…[11] It has brought about major advances in bone and joint imaging and is the modality of choice for assessing the TMJ and mild bony changes accompanied by RA since they can be clearly revealed due to the high resolution of MSCT. [7,12,13] Multiplanar reconstruction (MPR) from MSCT shows the highest accuracy and allows for excellent imaging of discrete bony changes in TMJ arthritis. [14] Typical findings in RA include subjective symptoms, restricted TMJ movement, and radiographic lesions along with condylar erosion, cysts, flattening, and sclerosis.…”

Clinical Feasibility of Multiplanar Reconstruction Images of Temporal Bone CT in the Diagnosis of Temporal Bone Fracture with Otic-Capsule-Sparing Facial Nerve Paralysis

“…This was superior to those for the axial image and 3D CT [10]. However, the reformatted images were influenced by the resolution quality of the original data [11]. In studies of the coronal MPR image of the petrous bone, Venema [12] recommended that the 0.5-mm collimation of the axial spiral CT could be replaced by the direct coronal sequential CT obtained with a 0.5-or 1.0-mm section thickness.…”

Outlining of the detailed structures in sectioned images from Visible Korean

“…Such sectioned images show true human body colors in high resolution; this feature differentiates these images from other alternatives, such as CT and MR images [1,18,19,21,26]. Nevertheless, the sectioned images themselves are not sufficient; in order to construct 3D models of body structures for use in medical simulation systems, the structures must be outlined in the sectioned images; this process is very time consuming.…”