| 邢杰,张专昌,郁万江,王泽国.Revolution CT行冠状动脉联合胸腹主动脉成像[J].中国医学影像技术,2021,37(1):118~122 |
| Revolution CT行冠状动脉联合胸腹主动脉成像 |
| CT angiography of coronary artery combined with thoracoabdominal aorta using Revolution CT |
| 投稿时间：2019-12-11 修订日期：2020-07-19 |
| DOI：10.13929/j.issn.1003-3289.2021.01.028 |
| 中文关键词: 冠状血管 主动脉,腹 主动脉,胸 主动脉造影术 质量控制 |
| 英文关键词:coronary vessels aorta, abdominal aorta, thoracic aortography quality control |
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| 中文摘要: |
| 目的 观察Revolution CT用于冠状动脉联合胸腹主动脉CT血管造影（CTA）的价值。方法 采用Revolution CT分别对A组、B组、C组各40例疑诊冠状动脉和/或主动脉病变患者行冠状动脉联合胸腹主动脉CTA、常规冠状动脉CTA及常规胸腹主动脉CTA。记录患者有效辐射剂量（ED），比较A组与B组、A组与C组CT值、噪声比（SNR）及对比噪声比（CNR）的差异，评价图像质量。结果 A组与B组冠状动脉各目标分支血管CT值差异无统计学意义（P均>0.05）；左回旋支SNR及CNR差异有统计学意义（t=2.84、2.61，P均<0.05），其余各分支血管SNR、CNR差异无统计学意义（P均>0.05）。A组与C组主动脉髂总动脉分叉处CT值差异有统计学意义（t=3.63，P<0.05），膈肌水平主动脉SNR、CNR差异均有统计学意义（t=-2.92、-2.76，P均<0.05），其余主动脉分支CT值、SNR、CNR差异均无统计学意义（P均>0.05）。A组冠状动脉CTA所致ED与B组差异无统计学意义（t=-0.91，P>0.05）；A组胸腹主动脉CTA所致ED低于C组。结论 采用Revolution CT行冠状动脉联合胸腹主动脉CTA图像质量佳，且可显著降低ED。 |
| 英文摘要: |
| Objective To investigate the value of Revolution CT for CT angiography (CTA) of coronary artery combined with thoracoabdominal aorta. Methods Totally 120 patients with suspected coronary artery and/or aortic diseases underwent CTA of coronary artery combined with thoracic and abdominal aorta (group A), coronary artery alone (group B) as well as thoracic and abdominal aorta (group C) using Revolution CT, respectively(each n=40). The effective radiation dose (ED) was recorded, and CT value, signal noise ratio (SNR) and contrast noise ratio (CNR) were compared between group A and group B, also between group A and group C. Results There was no statistical difference of CT value of target branches of coronary artery between group A and group B (all P>0.05), nor of SNR and CNR of other branches (all P>0.05), while significant differences of SNR and CNR were found of left circumflex artery (t=2.84, 2.61, both P<0.05). There were significant differences of CT value of common iliac artery bifurcation between group A and group C (t=3.63, P<0.05), also of SNR and CNR of aorta at diaphragm level between group A and group C (t=-2.92, -2.76, both P<0.05), but no of CT value, SNR nor CNR of other vascular branches (all P>0.05). There was no significant difference of ED between group A and group B during coronary artery CTA (mSv vs mSv, t=-0.91, P>0.05), while ED of patients in group A (mSv) was lower than that in group C (mSv) during CTA of thoracic and abdominal aorta (t=-17.79, P<0.05). Conclusion CTA of coronary artery combined with thoracoabdominal aorta using Revolution CT might obtain satisfactory imaging quality and significantly reduce ED. |
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