Measurement of Hydrogen Diffusion through PVA Hydrogel using Magnetic Resonance Imaging Method in Comparison with Consistency Assessment using Digital Penetrometer
Abstract: A study of hydrogen
diffusion behavior in the PVA (polyvinyl-alcohol) hydrogel had been done to
measurediffusion coefficient (Apparent Diffusion Coefficient/ ADC) used as
parameter of brain tumor grading. For ourstudy, PVA hydrogel samples were
prepared using freezing-thawing method with various concentration andnumber of
freezing-thawing cycles. The ambiguity of brain tumor grading using ADC value,
which is formedfrom Diffusion Weighted-Imaging 1,5 T, could be reduced enough
with observing the result of correlation the ADC at b-value 1000 s/mm2 and 3000
s/mm2 with assessment of consistency measured using digital penetrom-eter based
on microcontroller.
KEYWORDS: apparent diffusion
coefficient, polyvinyl-alcohol, diffusion weighted imaging, digital penetrometer
Author: Dita Puspita Sari
and Darminto
Journal Code: jpfisikagg130004
