| 董丽卿,刘永华,韩萍,孔祥泉,田志梁.胃肠道充气螺旋CT的窗口技术[J].中国医学影像技术,2003,19(2):237~239 |
| 胃肠道充气螺旋CT的窗口技术 |
| Proper Spiral CT Window for the Stomach and Colon |
| 投稿时间：2002-07-08 |
| DOI： |
| 中文关键词: 螺旋CT 窗宽 窗位 |
| 英文关键词:Spiral computed tomography Window width Window center |
| 基金项目: |
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| 摘要点击次数: 1835 |
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| 中文摘要: |
| 目的 探讨CT显示胃肠道及其病变的最适宜窗口。方法 随机选取50例行胃肠道充气螺旋CT检查者断面图像68帧,在四种不同窗宽窗位下,观察六个指标的显示情况。结果 第③窗(窗宽为180~280Hu,窗位为-20~+20Hu)时,直径约0.3~0.5cm细小结节或小血管断面,软组织内密度对比,脂肪与软组织对比的显示为优,气体与脂肪的对比、胃肠腔轮廓及软组织形态轮廓方面显示较好,可不同程度兼顾到所需观察的多种组织,较好显示胃肠道及其病变。结论 窗宽180~280Hu,窗位-20~+20Hu,是观察胃肠道的较适宜窗口。 |
| 英文摘要: |
| Objective To study the proper window for stomach and colon. Methods Sixty-eight slice images randomly-selected from 50 patients underwent insufflation and volume scan were observed under four kinds of window widths and centers. Results The gas,fat and soft-tissue could be shown under the third window(width:180 to 280Hu,center:-20 to +20Hu).The difference between fat and soft-tissue,inter-soft-tissue was clear.And the form was nature and intact.So the third window could show the stomach and colon and their lisions more easily. Conclusion The window with width 180~280Hu,center-20~+20Hu was a proper one for gastroenterology. |
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