多层螺旋CT对肝脓肿的诊断价值

目的探讨肝脓肿的多层螺旋CT表现及其诊断价值。方法对76例肝脓肿患者均采用16层螺旋CT机完成平扫、动脉期和门脉期扫描。结果 76例患者中,同时见分隔和分层26例,仅有分隔26例,仅有分层8例,仅显示低密度灶而无分隔或分层8例,病灶内含气体8例。一过性异常高灌注有38例。明确诊断或倾向性较强诊断68例（89.5%）,所有含气体的、有环提征的、同时有分隔和（或）分层显示的以及有一过性异常灌注的病灶均正确诊断为肝脓肿;仅显示低密度灶而无分隔或分层8例未能提示诊断,且未见一过性异常灌注,病灶相对均较小,未超过5 cm。结论多层螺旋CT增强扫描诊断肝脓肿具有特征性,对提高肝脓肿的诊断有重要价值。

Value of Multi-slice Spiral CT in Diagnosis of Hepatic Abscess

Objective To explore the findings of multi-slice spiral CT in hepatic abscess and its diagnostic value. Methods Seventy-six patients with hepatic abscess underwent unenhanced, arterial, and portal phase scan by using 16-slice CT scanner. Results Among the 76 patients, segregation and stratification were found in 26, single segregation in 26, single stratification in 8, low-density lesions without segregation or stratification in 8, and gas-containing lesions in 8. The transient hepatic perfu- sion disorder （THPD） occurred in 38 patients. The definite or probable diagnosis was made in 68 pa- tients （89.5%）. All lesions with gas, segregation/stratification, or THPD were correctly diagnosed with hepatic abscess. The diagnosis was not made in 8 patients with low-density lesions without segregation or stratification and THPD was not found （lesions≤5 cm in size）. Conclusion Multi-slice spiral CT can reveal the characteristics of hepatic abscess and improve the rate of diagnosis of liver abscess.