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.
Special diamond scales calibrated to one thousandth of a carat are generally used in the jewelry trade, so diamonds are weighed to the thousandth and rounded to the hundredth of a carat. Occasionally you may hear the term four grainer referring to a 1-carat stone. Each grain is equal to 0.25 carat or 25 points.