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对１８０例老年病毒性肝炎检测了血清腺苷脱氨酶（ＳＡＤＡ）及单光子发射计算机断层摄影（ＳＰＥＣＴ），结果表明老年重症肝炎和肝炎后肝硬化（ＬＣ）ＳＡＤＡ活力显著升高；慢性活动型（ＣＡＨ）中度升高；急性黄疸型（ＡＨ）轻度升高；慢性迁延型（ＣＰＨ）低度升高，且比非老年病毒性肝炎组有显著性升高（Ｐ＜０．０１或Ｐ＜０．０５）。ＥＣＴ所测９９ｍＴＣ－ＥＨＩＤＡ肝脏主动摄取、分泌、排泄时间和在肝内半衰期，老年重症肝炎和ＬＣ显著延长；ＣＡＨ明显延长；ＡＨ轻度延长；ＣＰＨ略有延长，且较对照组明显延长（Ｐ＜０．０１或Ｐ＜０．０５）。两种检测结果呈正相关，均能准确地反映肝细胞受损的严重程度，并说明老年病毒性肝炎肝功损害尤其严重，预后甚差。
Serum adenosine deaminase (SADA) and single-photon emission computed tomography (SPECT) were detected in 180 elderly patients with viral hepatitis. The results showed that the activity of SADA in elderly patients with severe hepatitis and post-hepatitis cirrhosis (LC) was significantly increased. Chronic activity (CAH) increased moderately; acute jaundice (AH) increased mildly; chronic hypothermia (CPH) increased slightly and was significantly higher than non-elderly viral hepatitis group (P <0.01) Or P <0.05). ECT measured 99mTC-EHIDA liver initiative take, excretion, excretion time and in the liver half-life, severe hepatitis and LC significantly prolonged; CAH was significantly prolonged; mildly prolonged AH; CPH slightly extended, and significantly longer than the control group (P <0.01 or P <0.05). The two test results were positively correlated, can accurately reflect the severity of liver cell damage, and that elderly liver damage is particularly serious viral hepatitis, the prognosis is poor.