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小肠的常规检查法是口服硫酸钡制剂150～250ml,钡剂通过小肠时间歇地透视、拍片,直到盲肠显示为止,约需5～6个小时。在小肠病变时,则费时更多,体弱患者难以支持。钡剂长时间在小肠内受到分泌液和食物等作用而崩解变质、凝集、分节等,影响小肠细节的显示,常无法得出诊断。且透视拍片频繁,射线有损患者与检查者的身体健康。为了提高检查质量,目前已有各种改进方法及措施。加速小肠内钡剂行速 1.钡剂剂量:用100ml钡剂作检查时,因胃排空较慢,小肠内钡剂少,可避免重叠,但钡头前进缓慢,肠液有足够时间使钡剂变质,引起小肠影象模糊。Marshak等常规使用
The routine examination of small intestine is oral barium sulfate preparations 150 ~ 250ml, barium through the small intestine intermittently fluoroscopy, film, until the cecal display so far, about 5 to 6 hours. When the lesion of the small intestine, then time-consuming more difficult to support the frail patients. Barium for a long time in the small intestine by the role of secretion and food and other disintegration and metamorphism, agglutination, section, etc., affect the display of intestinal detail, often unable to draw a diagnosis. And fluoroscopic film frequent, ray damage to the health of patients and examiners. In order to improve the quality of inspection, there are various improved methods and measures. Accelerate the small intestine barium line speed 1. Barium dose: 100ml barium for inspection, due to slower gastric emptying, less barium within the small intestine to avoid overlap, but the slow progress of the barium head, intestinal fluid have enough time to make barium Agent deterioration, causing small intestinal image blur. Marshak routine use