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.
These seeds are small and uniform in weight; therefore, they were a standard for weighing gemstones in early times. Around 1920, the metric carat was adopted as an international standard. One carat equals a fifth of a gram (0.20 grams), so there are five carats to the gram. Tavernier's Law. Generally, as a gemstone's carat weight increases, so does the price per carat. The following shows how the price of a diamond might increase with this formula applied to a $1000 a carat base price.