請教：國內冠狀動脈堵塞百分之九十五和美國heart scan calcium score 的換算

我一個大學同學冠狀動脈堵塞百分之九十五到九十九。隻好開了一刀，搭了三個橋（因放支架已不能完全解決問題了）。現在醫生要求他將低密度脂蛋白膽固醇控製在1.8以下。

美國heart CT scan,(coronary calcium scan) give a score.

The score is the total area of calcium deposits and the density of the calcium.

• A score of zero means no calcium is seen in the heart. It suggests a low chance of developing a heart attack in the future.
• When calcium is present, the higher the score, the higher the risk of heart disease.
• A score of 100 to 300 means moderate plaque deposits. It's associated with a relatively high risk of a heart attack or other heart disease over the next 3 to 5 years.
• A score greater than 300 is a sign of more extensive disease and a higher heart attack risk.
• 和過內的堵塞%是怎麽換算？