MSCT低剂量血管成像技术在儿童先天性主动脉畸形 诊断中的应用
摘 要: 【目的】 探讨多层螺旋CT(MSCT)低剂量血管成像技术在儿童先天性主动脉畸形诊断中的应用价值。【方法】 对84例采用64层螺旋CT低剂量血管成像技术诊断的儿童先天性主动脉畸形病例作回顾性分析,并与超声心动图(TTE)及手术、心血管造影结果进行比较分析,其中63例经手术确诊、21例经心血管造影证实。术后CT复查26例。【结果】 根据患儿体质量分别采取80、100及120 kV管电压,其例数分别为32、38及14,管电流自动调节(在35 ~ 80 mA范围变动),X线辐射剂量(mGy)比预设常规扫描模式减低幅度为20%~50%不等。所有病例图像均达到诊断标准。全组84例中,包括双...
| Published in: | Zhongshan Daxue xuebao. Yixue kexue ban |
|---|---|
| Format: | Article |
| Language: | Chinese |
| Published: |
Editorial Office of Journal of Sun Yat-sen University
2015-01-01
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| Subjects: | |
| Online Access: | http://xuebaoyx.sysu.edu.cn/zh/article/43571978/ |
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