| 龚红霞,朱炯,殷焱,许建荣.正常小肠的MSCT表现[J].中国医学影像技术,2009,25(7):1225~1228 |
| 正常小肠的MSCT表现 |
| MSCT manifestations of normal small bowel |
| 投稿时间：2008-11-06 修订日期：2009-01-12 |
| DOI： |
| 中文关键词: 体层摄影术,X线计算机 小肠 正常表现 |
| 英文关键词:Tomography, X-ray computed Intestine, small Normal manifestation |
| 基金项目:上海交通大学医学院重点学科项目。 |
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| 中文摘要: |
| 目的 总结口服及灌肠双重肠道准备后小肠MSCT各种正常表现。方法 对44名健康志愿者,经结肠、小肠双充盈法准备后,对小肠进行测量,包括肠壁厚度、肠管充盈直径、肠壁分层、肠壁CT值、空肠黏膜皱襞数、肠系膜脂肪密度、肠系膜血管影以及肠系膜淋巴结和后腹膜淋巴结MSCT显示率等。结果 小肠总的肠壁厚度平均值为(1.72±0.20)mm;整个小肠平均充盈肠管直径(21.24±3.05)mm;小肠各组段肠壁平扫、增强动脉期和门静脉期平均CT值分别为(28.13±0.38)HU、(55.42±0.88)HU和(67.86±0.94)HU;正常小肠每厘米肠段内可见的空肠黏膜皱襞数为2.29个,肠系膜血管影为2.59个;平均肠系膜脂肪密度-98.57 HU;肠壁改变以单层为主。结论 对正常小肠MSCT的各种表现和测量指标的正确认识有助于小肠病变的诊断。 |
| 英文摘要: |
| Objective To summarize MSCT manifestations of normal small bowel with oral water and colon water enema double-filling. Methods Small bowel parameters of 44 healthy volunteers were measured with oral water and colon water enema double-filling. The parameters included bowel wall thickness, diameter of filling bowel, bowel wall delamination, bowel wall CT attenuation, the number of the plica, the attenuation of mesenteric fat, mesenteric vessels, the appearance rate of lymph node in mesentery, retroperitoneum, and so on. Results The average bowel thickness was (1.72±0.20) mm ; the average diameter of filling bowel was (21.24±3.05) mm; the average CT attenuation of plain scan, artery phase and portal phase was (28.13±0.38) HU, (55.42±0.88) HU and (67.86±0.94) HU. Jejunum plica of normal small intestine was 2.29/cm; the number of the mesenteric artery bowel was 2.59/cm; the average attenuation of mesenteric fat was-98.57 HU; the single layer of bowel changed mostly. Conclusion Proper knowledge of normal manifestations of small bowel on MSCT is helpful for the diagnosis of small bowel diseases. |
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