Original Articles
Role of diffusion weighted imaging in evaluation of the Intracerebral hemorrhage | |
Dr. Sandeep Kaur Toor | |
The application of strong magnetic field gradients during proton MR imaging allows one to observe differences in molecular self-diffusion [6 ]. The basis for this diffusion is molecular translational (Brownian) motion, which leads to attenuation of signal intensity in each image voxel. Proton diffusion rates differ according to the tissue type; and specific techniques, such as intravoxel incoherent motion (IVIM) imaging, resulting in an apparent diffusion coefficient (ADC) image, have been developed to exploit these differences (6 ). The generalized model for the appearance of ICH on MR images attributes the various signal intensity patterns of evolving ICH to the oxygenation state of hemoglobin and the integrity of the red blood cells (13,14) |
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