推荐回答(4个)
腹部平片为泌尿系统X线最基础的检查方法,是指不用任何造影剂(对比剂)的全泌尿系X线摄片。摄片范围应包括双侧。肾脏、输尿管、膀胱及后尿道部位。为减少肠腔内气体或内容物影响平片的质量,摄片前应该做好肠道准备。具体包括:检查前禁止作胃肠钡剂检查,禁止服用不透X线的药物;检查前晚多采用泻药导泻;摄片日最好空腹检查。前列腺平片摄片取仰卧正位,X线球管向下倾斜20°,以耻骨上为中心射入,可避免前列腺与耻骨重叠。
平片可显示前列腺结石、前列腺钙化及精囊钙化等疾病。因前列腺疾病引起的下尿路梗阻而继发的膀胱结石也可显示。但应注意区别前列腺结石或膀胱结石嵌入膀胱颈部,也可进行尿道膀胱造影、超声波等检查。另外,摄骨X线片可发现前列腺癌的骨转移部位及程度。
照胸部 腹部等部位时 因为内脏较多 容易互相重叠遮挡 所以 照一张平视 即正视状态下的片子 就叫平片。比如 腹部平片 骨盆平片。简单的来说 平片 就是指正位片。
而照四肢骨骼时 因为骨骼是立体的 所以需要同时照正位和侧位,比如右胫腓骨正侧位。
这都是专业术语 理解就好 书不能悉意 望采纳
PS
平片只是大致的看一下而已。胸腔、腹腔积液 肺、支气管炎症 气胸 肠梗阻等常见病 一般都能看出来。
平片 就像咱们照相一样 一个立体的东西 照到了一面 但要想象照片中的东西是立体的 这个好像不难理解
第二个问题:内脏积水?腹部平片都是立位照射,特殊情况下是卧位照射,如果腹部(如你所说的积水),腹部平片是能看到有液平面的很多时候照片都可以看到胃部有液平面的,小孩子,肠梗阻,照腹部平面就会有液平面,肠道迂回,就像水管一样,你把下端掐紧了,从上端往下的液体及食物都会滞留,所以出现液平面
俺知识有限,如有遗漏,请见谅
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