Table 1.

Lesion score and percentage of affected area (mm²)

Score	Percentage lesion	Actual size lesion (mm2)
0	0	0
0.5	Less than 15%	33.75
1	15~30%	33.76~67.49
1.5	30~45%	67.50~101.24
2	45~60%	101.25~134.99
2.5	60~75%	135.00~168.74
3	More than 75%	168.75~225.00