PV-0476: Fractional anisotropy dose-response relationship of the corpus callosum
نویسندگان
چکیده
منابع مشابه
Diffusion anisotropy in the corpus callosum.
BACKGROUND AND PURPOSE The corpus callosum is a heterogeneous white-matter tract that connects the cerebral hemispheres. The purpose of this investigation was to study its microstructural architecture in normal human adult brains by using diffusion tensor imaging (DTI). METHODS Two hundred consecutive patients referred for brain MR imaging underwent additional DTI with a high gradient field s...
متن کاملThe corpus callosum in Binswanger’s disease: A quantitative fractional anisotropy analysis
To study the integrity of the corpus callosum in Binswanger's disease (BD) patients using quantitative fractional anisotropy (DTI-FA). Methods Controls (12) and patients with BD (12) were included. MR [GE Signa Horizon-1.5T] scans were performed. BD patients presented Fazekas's score=6 and leukoaraiosis extension =75%, as assessed on FLAIR sequence. Standard parameters for DTI-FA acquisition ...
متن کاملFractional Anisotropy in Corpus Callosum Is Associated with Facilitation of Motor Representation during Ipsilateral Hand Movements
BACKGROUND Coactivation of primary motor cortex ipsilateral to a unilateral movement (M1(ipsilateral)) has been observed, and the magnitude of activation is influenced by the contracting muscles. It has been suggested that the microstructural integrity of the callosal motor fibers (CMFs) connecting M1 regions may reflect the observed response. However, the association between the structural con...
متن کاملMeasuring Fractional Anisotropy of the Corpus Callosum Using Diffusion Tensor Imaging: Mid-Sagittal versus Axial Imaging Planes
OBJECTIVE Many diffusion tensor imaging (DTI) studies of the corpus callosum (CC) have been performed with a relatively thick slice thickness in the axial plane, which may result in underestimating the fractional anisotropy (FA) of the CC due to a partial volume effect. We hypothesized that the FA of the CC can be more accurately measured by using mid-sagittal DTI. We compared the FA values of ...
متن کاملReduced fractional anisotropy in the anterior corpus callosum is associated with reduced speech fluency in persistent developmental stuttering.
Developmental stuttering is a speech disorder that severely limits one's ability to communicate. White matter anomalies were reported in stuttering, but their functional significance is unclear. We analyzed the relation between white matter properties and speech fluency in adults who stutter (AWS). We used diffusion tensor imaging with tract-based spatial statistics, and examined group differen...
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ژورنال
عنوان ژورنال: Radiotherapy and Oncology
سال: 2016
ISSN: 0167-8140
DOI: 10.1016/s0167-8140(16)31725-x