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作者前瞻性分析了肝细胞癌(HCC)经皮无水酒精注射(PEI)治疗后随访的MR影象。31例经穿刺活检证实的单个HCC患者作了US导向PEI治疗,男性24例、女性7例,病灶均小于3cm(1.9～2.9cm)。术前和术后6个月全部病例均作US、CT平扫和增强扫描及MR扫描,27例还在术后12、18、24个月进行了US、CT和MR扫描。使用0.5T超导型MR扫描机,采用自旋回波(SE)序列,T_1加权象TR/TE为500/20,T_2加权象为2000/90,仅
The authors prospectively analyzed the MR images of patients with hepatocellular carcinoma (HCC) after percutaneous ethanol injection (PEI). Thirty-one patients with single HCC confirmed by needle biopsy were treated with US-guided PEI. There were 24 males and 7 females. The lesions were less than 3 cm (1.9-2.9 cm). All patients underwent plain and enhanced US and CT scans and MR scans before and 6 months after surgery. US, CT, and MR scans were also performed at 12, 18, and 24 months after surgery. Using a 0.5T superconducting MR scanner with a spin echo (SE) sequence, the T_1 weighted image TR/TE is 500/20, and the T_2 weighted image is 2000/90.