BETTER DIAGNOSIS OF STROKE USING DIFFERENT B-VALUES IN MAGNETIC RESONANCE IMAGING.

Abstract

Background: Magnetic resonance imaging is an important technique to provide useful information for the diagnosis of different kinds of diseases, Magnetic resonance imaging provides important information for intracranial hemorrhage, limitation of the treatment window prior to perfusion imaging by defining the existence of pre-existing infarct, and an increase in the differentiation of the acute area from edema.

Objectives: Our objective is to find out sought to ascertain the appearance of the acute stroke on DWI MRI as the diffusion gradient strength ("b value") increased from 0 to 103 s/mm2. Axial Diffusion-weighted Imaging (DWI) without contrast is used for echo planar imaging.

Method: Acute stroke MRI pleasant discrimination has been examined using routine brain MRI with various b-values.

Result: Different B- Values were tested for diagnosis of acute stroke. Best result was when the b Value Between 200 to 1000 s/mm2. Assume that acute stroke is evaluated using just one b variable. Then, instead of raising the b value to 1500 s/mm2, it is better to maintain the overall performance of the b factor at 1000 s/mm2.

Conclusion: To get a better understanding of acute stroke, several b-values have been employed. The range between 300 and 1000 s/mm2 has been shown to have the best b value.