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目的探讨256层iCT不同时相对法洛四联症(TOF)的评价价值。方法回顾性分析12例证实为TOF患者的iCT资料,分析病变类型、程度、并发畸形及变异,测量收缩期(45%时相)、舒张期(75%时相)肺动脉主干及室间隔缺损最大径,后者与手术结果对比。结果 12例患者畸形及变异均得到明确定性诊断,符合率100%。肺动脉主干45%与75%时相、室间隔缺损75%时相与手术结果无统计学差异(P>0.05),室间隔缺损45%与75%时相及手术结果存在统计学差异(P<0.05)。结论 256层iCT对TOF及其并发畸形变异能够很好的定性、定量诊断,室间隔缺损程度以心室舒张期评价较为客观准确。
Objective To evaluate the value of 256-layer iCT in simultaneous tetralogy of Fallot (TOF) evaluation. Methods A retrospective analysis was performed on iCT data of 12 confirmed cases of TOF. The type, degree, concomitant deformity and variation of the lesions were analyzed. The systolic (45%) phase and diastolic (75%) pulmonary artery and ventricular septal defect Trail, which contrast with the surgical results. Results The deformity and mutation of 12 patients were confirmed with definite qualitative diagnosis, the coincidence rate was 100%. The 45% and 75% phases of pulmonary artery trunk, 75% of ventricular septal defect and surgical results had no significant difference (P> 0.05), 45% and 75% of ventricular septal defect and surgical results were statistically different (P < 0.05). Conclusion The 256-layer iCT can qualitatively and quantitatively diagnose TOF and its concomitant deformity abnormalities. The ventricular diastolic evaluation of ventricular septal defect is more objective and accurate.