目的探讨利用螺旋CT多期增强检查,结合多平面重建对胃肿瘤的诊断价值。方法30例病理证实的胃肿瘤,分别于注射对比剂后25~30 s(动脉期)、70~80 s(非平衡期)、180~240 s(平衡期)扫描,其后行多平面重建。结果胃肿瘤的胃壁表现为局限性增厚(9/30)和广泛增厚(21/30)。动脉期,21例胃肿瘤呈不规则线状或团块状强化,4例局限性溃疡呈溃疡口部环堤状强化,5例病变呈轻度均匀强化;非平衡期,病变主要呈不均匀性强化;平衡期,病变强化均匀,强化程度轻度减低,9例胃肿瘤并周围组织、远处淋巴结转移。结论螺旋CT多期增强检查,结合多平面重建可观察胃形态、胃部病变及病变与周围组织的关系,对手术有指导意义。 Objective To explore the value of multislice spiral CT in the diagnosis of gastric neoplasm combined with multiplanar reconstruction. Methods Thirty cases of pathologically confirmed gastric tumors were scanned at 25-30 s (arterial phase), 70-80 s (non-equilibrium period), and 180-240 s (equilibrium period) after contrast agent injection, respectively, followed by multiplanar reconstruction . Results The stomach wall of gastric tumors showed localized thickened (9/30) and extensive thickened (21/30). In the arterial phase, 21 cases of gastric tumors showed irregular linear or lump-like enhancement. In 4 cases, the localized ulcer was enhanced by the annular dilatation of the ulcer and the lesion was slightly homogeneously enhanced in 5 cases. In non-equilibrium period, the lesions were mainly uneven Sexual enhancement; balance period, lesion intensified evenly, the intensity of mild reduction, 9 cases of gastric cancer and surrounding tissue, distant lymph node metastasis. Conclusion Spiral CT multi-phase enhanced examination, combined with multi-planar reconstruction can observe the gastric morphology, gastric lesions and lesions and the relationship between the surrounding tissue, which has guiding significance.