Measurement of cortical thickness from MRI by minimum line integrals on soft-classified tissue
نویسندگان
چکیده
منابع مشابه
Segmentation-free Measurement of Cortical Thickness from Mri by Minimum Line Integrals
Estimating the thickness of the cerebral cortex is a key step in many brain imaging studies, revealing valuable information on development or disease progression. In this work, we present a framework for measuring the cortical thickness, based on minimizing line integrals over the probability map of the gray matter in the MRI volume. We first prepare a probability map which contains the probabi...
متن کاملSoft tissue motion measurement on shank and thigh with MRI
Most in vivo knee kinematic analyses are based on external markers attached to the shank and the thigh. However, the positioning of the markers and skin artifacts can affect the kinematic parameters of the bones true movement. The aim of the present study was to develop and to use a protocol and a modeling method that allows the computation of the relative motion between the bones and the marke...
متن کاملMeasuring Cortical Thickness from Volumetric Mri Data
Cortical thickness is one of the most fundamental measurements for population and longitudinal studies in brain imaging. Therefore, measuring cortical thickness from MRI data is an important topic in computational brain imaging. In this work we present a new approach for measuring cortical thickness that is based on fitting balls into the gray matter mantle of the brain by maximizing the amount...
متن کاملSoft-tissue and cortical-bone thickness at orthodontic implant sites.
INTRODUCTION To obtain sufficient stability of implants, the thickness of the soft tissue and the cortical bone in the placement site must be considered. However, the literature contains few anatomical studies of orthodontic implants. METHODS To measure soft-tissue and cortical-bone thicknesses, maxillae from 23 Korean cadavers were decalcified, and buccopalatal cross-sectional specimens were...
متن کاملAssessing the Changes of Cortical Thickness in Alzheimer Disease With MRI Using Freesurfer Software
Introduction: In this study, we intend to determine the correlation between the thickness of the cerebral cortex and the severity of the cognitive disorder in Alzheimer disease (AD). Methods: A total of 20 (14 women and 6 men) patients diagnosed with AD with a Mean age of 72.95 years, and 10 (7 women and 3 men) cognitively normal (CN) subjects with a Mean age of 70.50 years were included in th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2009
ISSN: 1065-9471,1097-0193
DOI: 10.1002/hbm.20740