| 李昊岩,孙记航,段晓岷,刘勇,刘道永,胡迪,曹永丽,于彤,彭芸.高心率儿童冠状动脉成像追踪冻结技术的临床应用[J].中国医学影像技术,2019,35(4):596~600 |
| 高心率儿童冠状动脉成像追踪冻结技术的临床应用 |
| Clinical application of snapshot freeze technique during coronary angiography in children with high heart rate |
| 投稿时间：2018-10-16 修订日期：2019-01-09 |
| DOI：10.13929/j.1003-3289.201810009 |
| 中文关键词: 冠状动脉疾病 儿童 血管造影术 体层摄影术,X线计算机 |
| 英文关键词:coronary artery disease child angiography tomography, X-ray computed |
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| 中文摘要: |
| 目的 观察冠状动脉追踪冻结（SSF）技术在高心率儿童冠状动脉CTA （CCTA）中的价值。方法 对50例心率 ≥ 75次/分患儿行CCTA，将原始数据重建为4组图像：A组为手动选择最佳期相，不采用SSF技术；B组为手动选择最佳期相，采用SSF技术；C组为采用Smart Phase技术自动选择最佳期相，不采用SSF技术；D组为Smart Phase技术自动选择最佳期相，采用SSF技术。比较4组冠状动脉图像的质量评分及可诊断率。结果 50例共评价675个冠状动脉节段，A、B、C、D组间左回旋支（LCX）图像质量评分和可诊断率总体差异无统计学意义（P均>0.05），右冠状动脉（RCA）、左前降支（LAD）及冠状动脉图像质量评分和可诊断率总体差异均有统计学意义（P均<0.05）。A组与B组间RCA和冠状动脉评分差异均有统计学意义（P均<0.01），LAD评分差异无统计学意义（P=0.08）。A组与B组间LAD和冠状动脉可诊断率差异均有统计学意义（P均<0.01）；RCA可诊断率差异无统计学意义（P=0.08）。C组与D组间RCA、LAD及冠状动脉评分及可诊断率差异均有统计学意义（P均<0.05）。结论 采用SSF可改善高心率患儿CCTA图像质量。 |
| 英文摘要: |
| Objective To explore the value of snapshot freeze (SSF) technique in coronary CTA (CCTA) in pediatric patients with high heart rates. Methods Totally 50 children whose heart rate were ≥ 75 times per minute were selected and underwent CCTA. The raw data were reconstructed into 4 groups. The best phase in group A was manually selected without SSF technique, in group B was manually selected with SSF, in group C was automatically selected (Smart Phase) without SSF, while in group D was automatically selected with SSF. The image quality scores and diagnostic rates of coronary artery were compared among 4 groups. Results Totally 675 branches were assessed in 50 patients. There was no significant difference of left circumflex artery (LCX) image quality scores nor diagnostic rates among 4 groups (both P>0.05). There were significant differences of right coronary artery (RCA), left anterior descending (LAD), total coronary artery scores and diagnostic rates (all P<0.05). Significant differences of RCA and coronary artery scores were found (both P<0.01), while no significant difference of LAD scores was detected (P=0.08) between group A and B. There were significant differences of LAD and coronary artery diagnostic rates (both P<0.01), while no significant difference of RCA diagnostic rates was found (P=0.08) between group A and B. Significant differences of RCA, LAD and coronary artery scores and diagnostic rates were observed between group C and D (all P<0.05). Conclusion SSF technique can improve image quality of CCTA in children with high heart rate. |
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