MRI-texture analysis of corpus callosum, thalamus, putamen, and caudate in Machado-Joseph disease. 2012

Márcia S de Oliveira, and Anelyssa D'Abreu, and Marcondes C França, and Iscia Lopes-Cendes, and Fernando Cendes, and Gabriela Castellano
Department of Cosmic Rays and Chronology, Institute of Physics Gleb Wataghin, University of Campinas, São Paulo, Brazil. marciaso@ifi.unicamp.br

OBJECTIVE Texture analysis (TA) is a branch of image processing, which attempts to convey "texture" information from digital images, such as magnetic resonance images (MRI). Machado-Joseph disease (MJD) affects mainly cerebellum and brainstem, but recent studies have shown that other cerebral structures may also be affected. OBJECTIVE To investigate subtle structural abnormalities in corpus callosum (CC), thalami, putamen, and caudate nuclei of patients with MJD using TA. METHODS Eighteen healthy volunteers and 18 patients with MJD were studied (mean age at disease onset = 34.7 years; disease duration = 9.6 years; mean expanded CAG in the MJD1 gene = 73). A TA approach based on the gray-level cooccurrence matrix was applied to T1-MRI. Regions of interest were manually segmented for each subject, and texture parameters were computed for each of the aforementioned anatomical structures. RESULTS TA parameters showed differences between the 2 groups for the caudate nuclei, thalami, and putamen. No differences were found for the CC. CONCLUSIONS TA was capable of detecting tissue alterations in MRI of patients with MJD. These alterations were in areas already shown to be affected by histopathological studies. In addition, we confirmed the thalamic involvement in patients with MJD, which had only been demonstrated in volumetric studies.

UI MeSH Term Description Entries
D008297 Male Males
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D017827 Machado-Joseph Disease A dominantly-inherited ATAXIA first described in people of Azorean and Portuguese descent, and subsequently identified in Brazil, Japan, China, and Australia. This disorder is classified as one of the SPINOCEREBELLAR ATAXIAS (Type 3) and has been associated with a mutation of the MJD1 gene on chromosome 14. Clinical features include progressive ataxia, DYSARTHRIA, postural instability, nystagmus, eyelid retraction, and facial FASCICULATIONS. DYSTONIA is prominent in younger patients (referred to as Type I Machado-Joseph Disease). Type II features ataxia and ocular signs; Type III features MUSCULAR ATROPHY and a sensorimotor neuropathy; and Type IV features extrapyramidal signs combined with a sensorimotor neuropathy. (From Clin Neurosci 1995;3(1):17-22; Ann Neurol 1998 Mar;43(3):288-96) Azorean Disease,Joseph Disease,Spinocerebellar Ataxia Type 3,Striatonigral Degeneration, Autosomal Dominant,Autosomal Dominant Striatonigral Degeneration,Azorean Ataxia,Azorean Disease (Machado-Joseph),Azorean Disease, Nervous System,Azorean Neurologic Disease,Joseph Azorean Disease,Machado-Joseph Azorean Disease,Machado-Joseph Disease Type I,Machado-Joseph Disease Type II,Machado-Joseph Disease Type III,Machado-Joseph Disease Type IV,Nervous System Azorean Disease,Nigrospinodentatal Degeneration,Spinocerebellar Ataxia 3,Spinocerebellar Ataxia-3,Spinocerebellar Atrophy III,Spinocerebellar Atrophy Type 3,Type 3 Spinocerebellar Ataxia,Type I Machado-Joseph Disease,Type II Machado-Joseph Disease,Type III Machado-Joseph Disease,Type IV Machado-Joseph Disease,3s, Spinocerebellar Ataxia,Ataxia 3, Spinocerebellar,Ataxia 3s, Spinocerebellar,Atrophy III, Spinocerebellar,Atrophy IIIs, Spinocerebellar,Azorean Disease (Machado Joseph),Degeneration, Nigrospinodentatal,Degenerations, Nigrospinodentatal,Disease, Azorean,Disease, Azorean (Machado-Joseph),Disease, Azorean Neurologic,Disease, Joseph,Disease, Joseph Azorean,Disease, Machado-Joseph,Disease, Machado-Joseph Azorean,III, Spinocerebellar Atrophy,Machado Joseph Azorean Disease,Machado Joseph Disease,Machado Joseph Disease Type I,Machado Joseph Disease Type II,Machado Joseph Disease Type III,Machado Joseph Disease Type IV,Neurologic Disease, Azorean,Nigrospinodentatal Degenerations,Spinocerebellar Ataxia 3s,Spinocerebellar Atrophy IIIs,Type I Machado Joseph Disease,Type II Machado Joseph Disease,Type III Machado Joseph Disease,Type IV Machado Joseph Disease
D021621 Imaging, Three-Dimensional The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object. Computer-Assisted Three-Dimensional Imaging,Imaging, Three-Dimensional, Computer Assisted,3-D Image,3-D Imaging,Computer-Generated 3D Imaging,Three-Dimensional Image,Three-Dimensional Imaging, Computer Generated,3 D Image,3 D Imaging,3-D Images,3-D Imagings,3D Imaging, Computer-Generated,3D Imagings, Computer-Generated,Computer Assisted Three Dimensional Imaging,Computer Generated 3D Imaging,Computer-Assisted Three-Dimensional Imagings,Computer-Generated 3D Imagings,Image, 3-D,Image, Three-Dimensional,Images, 3-D,Images, Three-Dimensional,Imaging, 3-D,Imaging, Computer-Assisted Three-Dimensional,Imaging, Computer-Generated 3D,Imaging, Three Dimensional,Imagings, 3-D,Imagings, Computer-Assisted Three-Dimensional,Imagings, Computer-Generated 3D,Imagings, Three-Dimensional,Three Dimensional Image,Three Dimensional Imaging, Computer Generated,Three-Dimensional Images,Three-Dimensional Imaging,Three-Dimensional Imaging, Computer-Assisted,Three-Dimensional Imagings,Three-Dimensional Imagings, Computer-Assisted

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