单选题
关于肝血管瘤核素显像描述正确的是（ ）。
发布日期：2022-05-24
肝显像为单发或多发的放射性缺损区
肝血池显像呈“过度填充”
肝血池显像与周围正常肝组织相近
肝血流相有或无放射性充盈
A＋B＋D
试题解析
核素显像
基本释义放射性核素或其标记物被引入人体内，参与组织代谢，并发射能穿透组织的核射线，用放射性探测器进行体表探测，把它们的代谢过程定位、定量地显示出来，从而对疾病进行诊断。显像原理(l)、放射性核素或及其标记化合物与一般天然元素戴其化合物一样,引入体内后根据其化学及生物学特性有其一定的生物学行为,它们能够选择性聚集在受检的病变部位中机理为:细胞摄取戴聚集；细胞清除或聚集；参与某一代谢过程；特异性结合；简单在某一生物区通过和积存等。、发射透过组织的核射线在体表被核仪器探测到,把这种信息定量定位用显像方式戴非泉像方式显示出来,经统计学处理。、根据病变组织形态结构和功能代谢显像表现,并与对侧戴邻近周围正常组织放射性分布进行对比，从而对疾病进行诊断。放射性核素显像所探测的射线是引入体内的放射性核素发射出来的,射线(称之发射型, emission)不同于X-CT探侧的射线是来源于体外而穿透人体的X射线(
- 中文名
- 核素显像
- 外文名
- radionuclideimaging
肝血管瘤
肝血管瘤是一种较为常见的肝脏良性肿瘤，临床上以海绵状血管瘤最多见，病人多无明显不适症状，常在B超检查或在腹部手术中发现。尚无证据说明其有恶变可能。
- 外文名
- liver hemangioma
- 常见病因
- 先天发育异常、激素刺激等引起
- 就诊科室
- 血管外科
- 常见症状
- 血管瘤＞5cm时，可出现腹部包块
正确
正确，哲学名词，谓符合事实﹑规律﹑道理或某种公认的标准。与“错误”相对。
- 中文名
- 正确
- 词性
- 名词
- 外文名
- correct
- 拼音
- zhèng què
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