Diffusion-weighted magnetic resonance imaging (DW-MRI) provides image contrast through measurement of the diffusion properties of water within tissues. Application of diffusion sensitising gradients to the MR pulse sequence allows water molecular displacement over distances of 1-20 microm to be recognised. Diffusion can be predominantly unidirectional (anisotropic) or not (isotropic). Combining...

We present the report of a young male patient who was diagnosed with acute bilateral medial medullary infarction (MMI) on diffusion-weighted magnetic resonance imaging (DW-MRI). Corroboration with the apparent diffusion co-efficient (ADC) map enabled timely and accurate diagnosis of the rare stroke syndrome. On follow up 9 months after the diagnosis and subsequent treatment, the patient showed ...

this paper presents a new method to reduce consumption power in flash adc in 65nm cmos technology. this method indicates a considerable reduction in consumption power, by removing comparators memories. the simulations used a frequency of 1 ghz, resulting in decreased consumption power by approximately 90% for different processing corners. in addition, in this paper the proposed method was desig...

arrow). B (middle): Identical axial plane representing the ADC map. The mean ADC of the lymph node (black arrow) was measured with 78 x 10-5 mm/sec. C (right): Axial 3D T1-w SPACE reconstruction allowing to match the hyperintensive structure with a suspicious lymph node, which was correctly classified as positive from all readers. Size of the metastasis: 2mm x 2mm. Diagnostic Accuracy of Diffus...

Changes in lung function and structure were studied using hyperpolarized (3)He MRI in an elastase-induced murine model of emphysema. The combined analysis of the apparent diffusion coefficient (ADC) and fractional ventilation (R) were used to distinguish emphysematous changes and also to develop a model for classifying sections of the lung into diseased and normal. Twelve healthy male BALB/c mi...

Introduction The functional diffusion map (fDM) was developed in order to examine localized ADC changes by calculating voxel-wise changes in ADC (ΔADC) measured in the same patient over time . This technique has demonstrated utility in predicting the effect of cytotoxic chemotherapy and radiotherapy within the contrast-enhancing tumor bed as well as within regions of abnormal fluid-attenuated i...

PURPOSE The purpose of this study was to investigate whether a voxel-wise analysis of apparent diffusion coefficient (ADC) values may differentiate between progressive disease (PD) and pseudoprogression (PsP) in patients with high-grade glioma using the parametric response map, a newly introduced postprocessing tool. METHODS Twenty-eight patients with proven PD and seven patients with PsP wer...

The goal of this study was to develop a computer-aided therapeutic response (CADrx) system for early prediction of drug treatment response for glioblastoma multiforme (GBM) brain tumors with diffusion weighted (DW) MR images. In conventional Macdonald assessment, tumor response is assessed nine weeks or more post-treatment. However, we will investigate the ability of DW-MRI to assess response e...