Hypercellularity Components of Glioblastoma Identified by High b-Value Diffusion-Weighted Imaging
نویسندگان
چکیده
منابع مشابه
Signal Intensity of High B-value Diffusion-weighted Imaging for the Detection of Prostate Cancer
Background: Diffusion-weighted imaging (DWI) is a main component of multiparametric MRI for prostate cancer detection. Recently, high b value DWI has gained more attention because of its capability for tumor characterization. Objective: To assess based on histopathological findings of transrectal ultrasound (TRUS)-guided prostate biopsy as a reference, an...
متن کاملImproved detection of heat stroke-induced brain injury by high b-value diffusion-weighted imaging.
We report a case of heat stroke in which detection of brain injury was improved by high b-value diffusion-weighted imaging (DWI). High b-value DWI revealed moderate to marked hyperintensity at/around bilateral dentate nuclei and part of thalami. Apparent diffusion coefficient maps revealed apparent diffusion coefficient decrease of the dentate lesions. Routine DWI showed only mild hyperintensit...
متن کاملSignal to noise ratio of high b-value diffusion weighted images is improved using computed diffusion weighted imaging
acquired (+) and computed DWI imaging (x) where the acquisition time is kept the same for both. It is seen that noise remains constant across b-values for the conventionally acquired images whereas for cDWI it reduces with b-value as predicted by equation 1 (dotted curve). It is seen that for high b-values (>700 s mm) the SNR of cDWI is improved compared to conventional imaging. Figure 1. An ex...
متن کاملHigh b-value diffusion-weighted MRI of normal brain.
PURPOSE As MR scanner hardware has improved, allowing for increased gradient strengths, we are able to generate higher b values for diffusion-weighted (DW) imaging. Our purpose was to evaluate the appearance of the normal brain on DW MR images as the diffusion gradient strength ("b value") is increased from 1,000 to 3,000 s/mm2. METHOD Three sets of echo planar images were acquired at 1.5 T i...
متن کاملQuantitative evaluation of computed high B value diffusion-weighted magnetic resonance imaging of the prostate.
OBJECTIVES Computed diffusion-weighted magnetic resonance imaging (cDWI) refers to the synthesizing of arbitrary b value diffusion-weighted images (DWI) from a set of measured b value images by voxelwise fitting. The objectives of this study were to quantitatively analyze the noise and the contrast-to-noise ratio (CNR) in cDWI as a function of b value by numerical simulations and by measurement...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Radiation Oncology*Biology*Physics
سال: 2015
ISSN: 0360-3016
DOI: 10.1016/j.ijrobp.2015.02.058