Levels of the central nervous system: telencephalon, diencephalon (divided into the thalamus, hypothalamus, metathalamus, epithalamus and subthalamus), rhombencephalon, and the spinal cord.Brainstem: Mesencephalon, pons and medulla oblongata (bulb, myelencephalon).Cerebellar lobes: Anterior lobe of the cerebellum, posterior lobe of the cerebellum, and the flocculonodular lobe.Cerebral lobes: frontal lobe, parietal lobe, temporal lobe, occipital lobe, insula, limbic system (note that the limbic system is a functional unit that links parts of other lobes, and thus, zones are superposed).Several types of profiles were created for both the slices and the 3D images: For more complete diagrams, we would recommend the module on brain anatomy in illustrations. In addition, some of the reconstructions were minimally retouched using Adobe Photoshop in order to improve their didactic value and to remove certain artifacts, but no structure of any kind was added artificially (thus, for example, the cranial nerves are only visible on the brainstem images). Please note that the reconstructions were based on images of the same patient that allows the user to compare imaging in slices with 3D imaging of the human brain. To facilitate data download, the images were compressed in jpeg format, but the “HQ” function allows the user to download the images in optimal quality (note: the starting matrix is still 320/320 pixels).ģD image reconstructions for the brain, the ventricles, the brainstem, the cerebellum, the cerebral arteries and the venous sinuses were created from images in slices by means of a DICOM reconstruction console. The slice images were resized and cropped using Adobe Photoshop, and then integrated into a module. This module is intended for all physicians and non-physicians with an interest in neuroanatomy and medical imaging, particularly for general practitioners and specialists in neurology, neurosurgery, anatomy and neurosciences, as well as speech pathologists and psychomotor therapists.Īnatomy of the encephalon in MRI (axial, coronal and sagittal slices)Ĭerebral images used for this module on human anatomyĪn MRI was performed in thin slices (0.6 mm) on a healthy individual, with volumetric 3D imaging using T1 weighting without injection of gadolinium in the three normally used views, with a matrix of 320/320 pixels, using an MRI machine of 1.5 Tesla.Ī time-of-flight MR angiogram of the circle of Willis was performed and a venous MR angiogram by phase contrast was also performed on the same subject at a different time. The elaboration of this new module, its labeling of more than 524 structures on 379 MRI images in three different views and on 26 anatomical diagrams, took more than 6 months. The module on the anatomy of the brain based on MRI with axial slices was redesigned, having received multiple requests from users for coronal and sagittal slices.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |