نتایج جستجو برای: ReHo Methods Activation Map

تعداد نتایج: 2414106  

Karim Khoshgard, Meysam Siyah Mansoory Razie Chehreh

Introduction: Multiple Sclerosis (MS) is the most common non-traumatic neurological diseases of young adults. MS often reported during ages 20-62. MS affects the various anatomical parts of the central nervous system. Up to 65% of multiple sclerosis patients MS patients suffer from various problems, such as fatigue, depression, pain and sleep disorders. Unlike MRI, that only sh...

Journal: :European journal of radiology 2013
Xunheng Wang Yun Jiao Tianyu Tang Hui Wang Zuhong Lu

PURPOSE Investigating the discriminative brain map for patients with attention-deficit/hyperactivity disorder (ADHD) based on feature selection and classifier; and identifying patients with ADHD based on the discriminative model. MATERIALS AND METHODS A dataset of resting state fMRI contains 23 patients with ADHD and 23 healthy subjects were analyzed. Regional homogeneity (ReHo) was extracted...

2013
Min-Jie Liang Quan Zhou Kan-Rong Yang Xiao-Ling Yang Jin Fang Wen-Li Chen Zheng Huang

BACKGROUND To identify changes in brain activation patterns in bipolar disorder (BD) and unipolar depression (UD) patients. METHODOLOGY/PRINCIPAL FINDINGS Resting-state fMRI scans of 16 healthy controls, 17 BD and 16 UD patients were obtained. T-test of normalized regional homogeneity (ReHo) was performed in a voxel-by-voxel manner. A combined threshold of á = 0.05, minimum cluster volume of ...

Hosna Nouri Tahneh Karim Khoshgard, Meysam Siyah Mansoory

Introduction: Neuromyelitis Optica (NMO) is a rare inflammatory disease of the central nervous system which generally affecting the spinal cord and optic nerve. Damage to the optic nerve can result in the patient's dim vision or even blindness, while the spinal cord damage may lead to sensory and motor paralysis and the weakness of the lower limbs in the patient. Magnetic Reson...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2007
Feng Shi Yong Liu Tianzi Jiang Yuan Zhou Wanlin Zhu Jiefeng Jiang Haihong Liu Zhening Liu

This paper presents a discriminative model of multivariate pattern classification, based on functional magnetic resonance imaging (fMRI) and anatomical template. As a measure of brain function, Regional homogeneity (ReHo) is calculated voxel by voxel, and then a widely used anatomical template is applied on ReHo map to parcelate it into 116 brain regions. The mean and standard deviation of ReHo...

2017
Zonglin Shen Linling Jiang Shuran Yang Jing Ye Nan Dai Xiaoyan Liu Na Li Jin Lu Fang Liu Yi Lu Xuejin Sun Yuqi Cheng Xiufeng Xu

OBJECTIVE Previous work exhibited different brain grey matter volume (GMV) changes between patients with early adult onset depression (EOD, age 18-29) and later adult onset depression (LOD, age 30-44) by using 30-year-old as the cut-off age. To identify whether regional homogeneity (ReHo) changes are also different between EOD and LOD by using same cut-off age, we used resting-state functional ...

2010
Dongqiang Liu Chaogan Yan Juejing Ren Li Yao Vesa J. Kiviniemi Yufeng Zang

In this study, we applied coherence to voxel-wise measurement of regional homogeneity of resting-state functional magnetic resonance imaging (RS-fMRI) signal. We compared the current method, regional homogeneity based on coherence (Cohe-ReHo), with previously proposed method, ReHo based on Kendall's coefficient of concordance (KCC-ReHo), in terms of correlation and paired t-test in a large samp...

2016
Jing Zhang Wei-Dong Hu Guang-Yao Liu Chuang Wu Tie-Jun Gan

Objective: Previous work has shown regional homogeneity (ReHo) differences in Parkinson’s disease (PD) patients. So looking in more detail at differences between early and late stages is valuable. The aim of our study was to investigate brain activity of early and advanced PD in the resting state by using a ReHo approach. Methods: Functional magnetic resonance images were acquired in 35 patient...

Journal: :Journal of affective disorders 2016
Haichen Yang Linling Li Hongjun Peng Tiebang Liu Allan H Young Jules Angst Rong Ye Han Rong Erni Ji Yunhai Qiu Lingjiang Li

BACKGROUND Bipolar disorder (BD) is difficult to diagnose in the early stages of the illness, with the most frequent misdiagnosis being major depressive disorder (MDD). We aimed to use a regional homogeneity (ReHo) approach with resting-state functional magnetic resonance imaging (rs-fMRI) to investigate the features of spontaneous brain activity in MDD patients screening positive on the 32-ite...

2014
Hui-Jie Li Xiao-Hua Cao Xing-Ting Zhu Ai-Xia Zhang Xiao-Hui Hou Yong Xu Xi-Nian Zuo Ke-Rang Zhang

BACKGROUND Previous volume-based regional homogeneity (ReHo) studies neglected the intersubject variability in cortical folding patterns. Recently, surface-based ReHo was developed to reduce the intersubject variability and to increase statistical power. The present study used this novel surface-based ReHo approach to explore the brain functional activity differences between first-episode, drug...

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