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目的评价多层螺旋CT(MSCTA)在诊断维持性血液透析(MHD)动静脉内瘘狭窄中的临床价值。方法对30例临床出现内瘘功能不全症状的MHD患者行MSCTA检查,并以数字减影血管造影(DSA)作为参考标准。结果 MSCTA诊断内瘘狭窄(≥50%)的准确性、灵敏性、特异性、阳性预测值及阴性预测值分别为90.3%、88.6%、91.4%、86.0%和93.0%。MSCTA与DSA对内瘘狭窄程度的评价具有很好的一致性。结论 MSCTA诊断MHD内瘘狭窄具有重要的临床价值。
Objective To evaluate the clinical value of multislice spiral CT (MSCTA) in the diagnosis of arteriovenous fistula stenosis in maintenance hemodialysis (MHD). Methods MSCTA was performed in 30 MHD patients with clinical manifestations of fistula dysfunction. Digital subtraction angiography (DSA) was used as a reference standard. Results The accuracy, sensitivity, specificity, positive predictive value and negative predictive value of MSCTA for the diagnosis of stenosis (≥50%) were 90.3%, 88.6%, 91.4%, 86.0% and 93.0%, respectively. MSCTA and DSA evaluation of the degree of fistula stenosis has a good consistency. Conclusion MSCTA diagnosis of MHD fistula stenosis has important clinical value.