In the last two protocols, automated ADC (apparent diffusion coefficient maps) were available. The ADC values from the normal or diseased brain parenchyma were calculated directly from these automatically generated ADC maps with region of interest (ROI) and/or âpixel lensâ evaluation.
A carat is a unit of measure for diamond weight and is evaluated on a point system. One carat is equivalent to 100 points. A karat is the standard measurement of gold, which is divided into 24 parts. Pure gold is 24 karats, meaning 24 out of 24 parts are gold.
The carat is divisible into one hundred points of two milligrams each. Other subdivisions, and slightly different mass values, have been used in the past in different locations. In terms of diamonds, a paragon is a flawless stone of at least 100 carats (20 g). The ANSI X.12 EDI standard abbreviation for the carat is CD.