Iron is paramagnetic, accumulates with age, is higher in the deep gray matter in neurodegeneration and if increased in tissues, shortens MRI T1 and T2. There are few data in children with sickle cell disease (SCD). Our aims were to measure T2-weighted signal intensity ratio (T2SIR), a ...
They are associated with focal areas of high signal intensity (T2H) on T2-weighted MRI of the brain. Changes in T2H may affect cognitive development. Our study was to analyse the relations between the long-term development of T2H development and the cognitive abilities in patients with NF1....
To investigate differences in T2 intensity of deep gray matter (dGM) structures by magnetic resonance imaging (MRI) in multiple sclerosis (MS) patients undergoing various immunomodulatory therapies.BACKGROUNDIn MS, dGM T2 hypointensities by MRI are hypothesized to represent iron deposition and are know...
In this work, we propose a fusion algorithm using CDF9/7 wavelet based on lifting scheme with specified fusion rules to combine pairs of multispectral Magnetic Resonance Imaging (MRI) such as T1, T2. The experimental results of brain tumor show that the proposed algorithm preserves both edge ...
Extensive heterogeneity in white matter intensity in high-resolution T2*-weighted MRI of the human brain at 7.0 T. On the other hand, the acquisition of high quality whole brain MRI at high field is hampered by the increased inhomogeneity in B o and B 1 fields... TQ Li,PV Gelderen,H ...
He was the only one with normal brain MRI. All 16 patients with deletions including the MBP gene had abnormal white matter in MRI. The main finding was poor differentiation of gray and white matter on T2-weighted images due to increased white matter signal intensity. In addition, measured ...
where L is the intensity value of the estimated concave valley, which can be used as the threshold value to obtain the background-removed binary images, as shown in Fig. 1c. Figure 1 The process of histogram partitioning. (a) The original MRI brain image. (b) The histogram of the MR...
On T1- and T2-weighted magnetic resonance (MR) images obtained at 0.14 T the rat brain was visible in the rat head as an area of relative high signal intensity. The enlarged lateral ventricles produced by intrastriatal injections of the excitotoxin kainic acid (KA) were clearly visible as ...
31January2006 #Springer-Verlag2006 PatternofT2hypointensityassociated withring-enhancingbrainlesionscanhelp todifferentiatepathology AbstractRing-enhancinglesions seenonMRimagescanoccurwitha varietyofetiologies.Somering-en- hancinglesionshavehypointenserims peripherallyonT2-weightedMRim- ages.Inthisstudy,we...
T1w/T2w intensity decreases in cortical, subcortical regions, and WM in TLE 应用两种 MRI 测量相结合,目前的研究结果提供了的 TLE 中 T1w/T2w 比率的大脑微结构变化。在 两组 TLE 和 HC 中,使用 WM 和 GM 作为ROI ...