Objective: To explore the value of dual contrast-enhanced ultrasound in preoperative T staging of rectal carcinoma. Methods: Dual contrast-enhanced ultrasound examinations were performed on 72 patients with rectal carcinoma via transrectal infusion and intravenous injection. The accordance of preoperative dual contrast-enhanced ultrasound results and postoperative pathologic results was evaluated retrospectively. Results: The overall accordance rate of preoperative T staging was 73.6% (53/72). And accordance rate was 100.0% (3/3), 100.0% (5/5), 68.4% (13/19), 71.4% (25/35)and 70.0% (7/10) for Tis , T1, T2, T3 and T4, respectively. The consistency was good (κ=0.607, χ(2) =8.363, P<0.01). The accordance rate of middle/lower vs high rectal carcinoma was 68.7% and 85.7%. Conclusion: Dual contrast-enhanced ultrasound can provide reference for preoperative T staging for patients with rectal carcinoma.
目的： 探讨超声的双重造影对直肠癌术前T分期评估的价值。 方法： 回顾性纳入2015年3月至2016年1月福建省肿瘤医院已确诊直肠癌患者72例，比较术前超声双重造影(腔内灌注造影及静脉造影)T分期与术后的病理T分期的一致性。 结果： 超声双重造影术前T分期的总符合率为73.6%(53/72)。其中Tis 100.0%(3/3)，T1 100.0%(5/5)，T2 68.4%(13/19)，T3 71.4%(25/35)，T4 70.0%(7/10)，kappa一致性检验认为超声T分期与病理T分期两者一致性较好(κ＝0.607，χ(2)＝8.363，P<0.01)。中低位及高位直肠癌术前T分期的符合率分别为68.7%、85.7%。 结论： 超声双重造影为直肠癌患者术前T分期诊断提供了重要参考。.
Keywords: Neoplasm staging; Rectal neoplasms; Ultrasonography.