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目的:探讨口服产气粉和鼻胃管充气法在胃癌多层螺旋CT成像技术中的临床应用价值。方法:56例胃部疾病患者,随机分为观察组(30例)和对照组(26例),对照组采用口服产气粉法、观察组采用鼻胃管充气法,经螺旋CT容积扫描后分别采用CT仿真内窥镜(CTVE)、表面遮盖法(SSD)、多平面重建(MPR)及容积重建(VR)技术进行胃部三维成像,将所获得图像与胃镜和/或手术结果对照,将2种充气方法效果进行比较。结果:图像质量满意率显示,对照组图像优14例(56%)、良7例(28%)、差4例(16%);观察组图像优30例(97%)、良1例(3%)、差0(%)。2组比较差异有统计学意义,χ2=14.97,P<0.05,鼻胃管充气方法优于口服产气粉的方法。图像质量评价显示,在胃扩张充盈程度及病灶细节显示方面有显著性差异。使用鼻胃管充气行三维成像的满意率较高,而口服产气粉行三维成像其图像质量不理想。结论:2种充气方法在胃癌的图像质量满意率上,鼻胃管充气法明显优于口服产气粉的方法,能获得优质的三维重组图像,为诊断提供可靠依据。
Objective: To investigate the clinical value of oral gas production and nasogastric tube inflation in multi-slice spiral CT imaging of gastric cancer. Methods: Fifty-six patients with gastric diseases were randomly divided into the observation group (30 cases) and the control group (26 cases). The control group was treated with oral gas production method. The observation group was treated with nasogastric tube inflation method. Three-dimensional imaging of the stomach was performed by using CT virtual endoscopy (CTVE), surface covering method (SSD), multiplanar reconstruction (MPR) and volume reconstruction (VR) respectively. The obtained images were compared with endoscopy and / Compare the effects of two inflation methods. Results: The satisfactory rate of image quality showed that the control group had excellent results in 14 cases (56%), good in 7 cases (28%) and poor in 4 cases (16%). The observation group had excellent results in 30 cases (97%), Example (3%), poor 0 (%). The difference between the two groups was statistically significant, χ2 = 14.97, P <0.05, nasogastric tube inflation method is superior to oral gas production method. Image quality evaluation showed significant differences in the degree of filling in the stomach and the lesion details. Satisfaction rate of using nasogastric tube inflation was higher than that of three-dimensional imaging with oral gas production. Conclusions: The two methods of inflation are superior to those of oral gas-producing method in gastric cancer with satisfactory image quality, which can provide high-quality three-dimensional reconstruction images and provide a reliable basis for diagnosis.