VBM based MR Imaging Volumetric Analysis of AD and MCI

نویسندگان

  • M. M. Patil
  • A. R. Yardi
چکیده

Voxel-based morphometry is a method for detecting group differences in the density or volume of brain matter. The authors reviewed the literature on use of voxel-based morphometry in brain MRI imaging research to examine the capabilities of this method for clearly identifying specific differences in patients with MCI and AD (and compared with healthy subjects). A technique of segmenting human brain MRI image into total gray matter (GM) and total white matter (WM) Voxel-based morphometry (VBM) was performed using VBM 5.1 toolbox and SPM5 in a Matlab environment. Images from (ADNI database) 15 AD and 15 MCI were used for investigation. The analysis revealed significant gray matter, white matter and CSF volume loss in the AD as compared with MCI patients. Quantitative analysis of %GM and %WM volumes can help in distinguishing atrophy of AD patterns from characteristics of the MCI.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Amnestic mild cognitive impairment: structural MR imaging findings predictive of conversion to Alzheimer disease.

BACKGROUND AND PURPOSE Mild cognitive impairment (MCI) is considered by many to be a prodromal phase of Alzheimer disease (AD). We used voxel-based morphometry (VBM) to find out whether structural differences on MR imaging could offer insight into the development of clinical AD in patients with amnestic MCI at 3-year follow-up. MATERIALS AND METHODS Twenty-four amnestic patients with MCI were...

متن کامل

Global and local gray matter loss in mild cognitive impairment and Alzheimer's disease.

PURPOSE Mild cognitive impairment (MCI) is thought to be the prodromal phase to Alzheimer's disease (AD). We analyzed patterns of gray matter (GM) loss to examine what characterizes MCI and what determines the difference with AD. MATERIALS AND METHODS Thirty-three subjects with AD, 14 normal elderly controls (NCLR), and 22 amnestic MCI subjects were included and underwent brain MR imaging. Gl...

متن کامل

Brain Atrophy in Mild Cognitive Impairment: MRI volumetric and voxel-based method study

Background: Mild cognitive impairment (MCI), a heterogeneous status, has gained increased interest from clinicians and researchers, because it has been shown to represent a transitional stage between normal ageing and very early Alzheimer’s disease (AD). Neuroimaging data, genetic findings, biological markers and neuropsychological tests have been evaluated as predictors of conversion from MCI ...

متن کامل

Extratemporal damage in temporal lobe epilepsy: magnetization transfer adds information to volumetric MR imaging.

BACKGROUND AND PURPOSE MTS is characterized by gliosis and atrophy of the hippocampus and related limbic structures. However, the damage is not limited to those structures with atrophy and has been reported in extratemporal regions. Because volumetric studies are nonspecific, the pathophysiology of the brain damage remains to be solved. MTI is an MR imaging technique more sensitive to subtle ne...

متن کامل

MRI detection of tissue pathology beyond atrophy in Alzheimer's disease: Introducing T2-VBM

Voxel-based morphometry (VBM) of T1-weighted magnetic resonance (MR) images has been widely used to identify regional atrophy in neurodegenerative conditions such as Alzheimer's disease (AD). In theory, however, T2-weighting should be more sensitive to tissue pathology, though until recently, volumetric T2-weighted images were unavailable. We tested the hypothesis that T2-VBM would be more sens...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011