磁共振成像和内镜超声检查在胃癌分期中的应用
MRI and endoscopic ultrasonography in the staging of gastric cancer.
作者信息
Arocena M G, Barturen A, Bujanda L, Casado O, Ramírez M M, Oleagoitia J M, Galdiz Iturri M, Múgica P, Cosme A, Gutiérrez-Stampa M A, Zapata E, Echenique-Elizondo M
机构信息
Department of Surgery, San Eloy Hospital, Baracaldo, Vizcaya, Spain.
出版信息
Rev Esp Enferm Dig. 2006 Aug;98(8):582-90. doi: 10.4321/s1130-01082006000800003.
OBJECTIVE
to determine the diagnostic precision of endoscopic ultrasounds (EUS) and magnetic resonance imaging (MRI) in the preoperative staging of gastric cancer.
METHODS
a prospective, blind study was carried out in 17 patients diagnosed with gastric cancer (GC) using endoscopic biopsy from November 2002 to June 2003. Patients underwent preoperative MRI and EUS. The reference test used was pathology, and laparotomy for non-resectable cases.
RESULTS
MRI (53%) was better than EUS in the assessment of gastric wall infiltration (35%). MRI (50%) was also superior to EUS (42%) for N staging. After pooling stages T1-T2 and T3-T4 together, results improved for both MRI (67 and 87.5%, respectively) and EUS (67 and 62.5%, respectively) (p < 0.05). N staging--lymph node invasion--results were correct in 50% for MRI as compared to EUS (42%). In classifying positive and negative lymph nodes EUS was superior to MRI (73 versus 54%).
CONCLUSIONS
MRI was the best method in the assessment of gastric wall infiltration. EUS was superior to MRI for T1 staging, and in the assessment of lymph node infiltration.
目的
确定内镜超声（EUS）和磁共振成像（MRI）在胃癌术前分期中的诊断准确性。
方法
2002年11月至2003年6月，对17例经内镜活检确诊为胃癌（GC）的患者进行了一项前瞻性盲法研究。患者接受了术前MRI和EUS检查。采用的参考检查为病理学检查，对不可切除病例进行剖腹手术。
结果
在评估胃壁浸润方面，MRI（53%）优于EUS（35%）。在N分期方面，MRI（50%）也优于EUS（42%）。将T1 - T2期和T3 - T4期合并后，MRI（分别为67%和87.5%）和EUS（分别为67%和62.5%）的结果均有所改善（p < 0.05）。在N分期——淋巴结侵犯方面，MRI的正确率为50%，而EUS为42%。在区分阳性和阴性淋巴结方面，EUS优于MRI（73%对54%）。
结论
MRI是评估胃壁浸润的最佳方法。EUS在T1分期及评估淋巴结浸润方面优于MRI。
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