Sulci as landmarks
نویسندگان
چکیده
منابع مشابه
Identifying homologous anatomical landmarks on reconstructed magnetic resonance images of the human cerebral cortical surface.
Guided by a review of the anatomical literature, 36 sulci on the human cerebral cortical surface were designated as homologous. These sulci were assessed for visibility on 3-dimensional images reconstructed from magnetic resonance imaging scans of the brains of 20 normal volunteers by 2 independent observers. Those sulci that were found to be reproducibly identifiable were used to define 24 lan...
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The topographic relationships between the macroanatomical structure of the lateral cortex, including sulci and fissures, and anatomical landmarks on the external surface of the head are known to be consistent. This allows the coregistration of EEG electrodes or functional near-infrared spectroscopy over the scalp with underlying cortical regions. However, limited information is available as to ...
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The human brain cortex is a highly convoluted sheet of gray matter composed of folds (gyri) and fissures (sulci). Sulci serve as important macroscopic landmarks to distinguish different functional areas of the brain. The exact segmentation and identification of sulci is critical for human brain mapping studies that aim at finding correspondences between structures and their function. In this pa...
متن کاملDifferential cortical thickness across the central sulcus: a method for identifying the central sulcus in the presence of mass effect and vasogenic edema.
BACKGROUND AND PURPOSE Identification of the motor strip on MR imaging studies is difficult in the presence of mass effect and vasogenic edema because sulcal landmarks are obscured. We hypothesize that a difference in cortical thickness between the motor and sensory strips is readily apparent on T2-weighted images in the presence of vasogenic edema and reliably identifies the central sulcus. ...
متن کاملSulcus detection in planar projections of cortical surfaces
Cortical sulci are important landmarks in neuroimaging. Their localisation and matching in full 3D volumetric images can be complex and compute-intensive. This paper describes a method for finding cortical position of the sulci using quasi-two-dimensional techniques. By applying a hemispherical projection, the cortical part of the brain volume is transformed into a stack of 2D slices, each repr...
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تاریخ انتشار 2015