`99m´Tc-GSAシンチグラフィを用いた肝障害度別換算ICGR15による肝予備能の評価

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  • Preoperative Evaluation of Hepatic Function Reserve by Converted ICGR15 Calculated from 99mTc-GSA Scintigraphy

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Purpose: To improve the accuracy of correlation between converted ICGR15 from 99mTc-GSA Scintigraphy (LHL15, HH15) and ICGR15, we searched for the formula based on the characteristic of LHL15 and HH15. Materials and Methods: Preoperative hepatic function reserve was evaluated by converted ICGR15, calculated with a formula acquired from the correlation between HH15 and ICGR15, or the correlation between LHL 15 and ICGR15. Subjects were 144 patients undergoing hepatectomy after 99mTc-GSA scintigraphy and indocyanine green retention test from June 1995 to September 2002. Results: Based on the fact that LHL15 is correlated with ICGR15 in cases with better hepatic function reserve, and HH15 is correlated with ICGR15 in cases with poorer hepatic function reserve. Two separate formulas were found in Liver Damage A and Liver Damage B to improve the correlation coefficient. ICGR15=114-108× LHL15 was found in cases with Liver Damage A, and ICGR15=-41+103× HH15 in cases with Liver Damage B. Conclusion: ICGR15 converted from these formulas related better to ICGR15 than that from the formula acquired from all cases.

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