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23例有肝转移病人接受动脉内~(90)铱微球治疗,使用的剂量是5000～15000cGy。本研究的重点是未受肿瘤侵犯的肝实质改变的CT表现。23例肝转移灶均不能切除,经过常规系统或动脉内化疗没有疗效而且以前未接受过肝放射治疗。动脉内~(90)铱微球治疗只有在血管造影和闪烁图明确是全肝灌注而无肝外灌注时才予进行。所有病人在治疗前和在治疗后2年内每隔8周进行增强动态CT扫描,以后根据临床指征每间隔3周或6周扫描一次,当证实病情进展后不再继续复查。肝脏实质异常由三
Twenty-three patients with liver metastases underwent intra-arterial administration of ~ (90) iridium microspheres in doses of 5000-15000 cGy. The focus of this study was CT findings of liver parenchyma not affected by tumors. Twenty - three cases of liver metastases were unresectable, had no efficacy after conventional systemic or intraarterial chemotherapies, and had not been previously treated with liver radiation. Intra-arterial (90) iridium microsphere treatment is only given when angiography and scintigraphy are clearly hepatic perfusion without extrahepatic perfusion. All patients underwent enhanced dynamic CT scans every 8 weeks prior to treatment and within 2 years of treatment and later at 3 or 6 weeks intervals, based on clinical indications. No further review was performed after confirming the progression of the disease. Abnormal liver by three