Scoring criteria for determining the safety of liver resection for malignant liver tumors

Table 2 Sapporo scores for liver resection of malignant tumors

Factors	Scores
	4	3	2	1
ICGR15 (%)	≤ 10	10-19	20-29	≥ 30
ATIII (%)	≥ 90	80-89	70-79	≤ 69
HH15	≤ 0.55	0.56-0.59	0.60-0.64	≥ 0.65
LHL15	≥ 0.95	0.90-0.94	0.85-0.89	≤ 0.84

The total number of points was calculated as the sum of the scores for the ICGR15, serum ATIII level, HH15, and LHL15. Hr 2 or Hr 3: 16 points, Hr: 1 ≥ 12 points, Hr S: ≥ 8 points, Hr 0: ≤ 7 points. ICG15: Indocyanine green retention rate at 15 min; ATIII: Serum anti-thrombin III level; HH15: Uptake ratio of the heart at 15 min to that seen at 3 min on 99m Tc-galactosyl human serum albumin scintigraphy (GSA); LHL15: The uptake ratio of the liver to the liver plus heart at 15 min on GSA.