| 乔红艳,王锡明,段艳华,纪晓鹏,杨子峰.双源CT前瞻性心电门控肺动脉成像诊断肺动脉栓塞[J].中国医学影像技术,2012,28(1):86~89 |
| 双源CT前瞻性心电门控肺动脉成像诊断肺动脉栓塞 |
| Dual source CT prospective electrocardiography-gated pulmonary angiography in diagnosis of pulmonary embolism |
| 投稿时间：2011-06-08 修订日期：2011-08-17 |
| DOI： |
| 中文关键词: 肺动脉栓塞 辐射剂量 体层摄影术,X线计算机 |
| 英文关键词:Pulmonary embolism Radiation dose Tomography, X-ray computed |
| 基金项目:山东省科技攻关项目(2010GG0020217)。 |
| 作者 | 单位 | E-mail | | 乔红艳 | 山东大学医学院,山东 济南 250012
山东省医学影像学研究所CT室,山东 济南 250021 | | | 王锡明 | 山东省医学影像学研究所CT室,山东 济南 250021
山东省心脑血管疾病诊治重点实验室,山东 济南 250021 | wxming369@163.com | | 段艳华 | 山东大学医学院,山东 济南 250012
山东省医学影像学研究所CT室,山东 济南 250021 | | | 纪晓鹏 | 山东大学医学院,山东 济南 250012
山东省医学影像学研究所CT室,山东 济南 250021 | | | 杨子峰 | 山东省医学影像学研究所CT室,山东 济南 250021
泰山医学院研究生部,山东 泰安 271016 | |
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| 中文摘要: |
| 目的 探讨双源CT前瞻性心电门控(简称前门控)肺动脉成像在诊断肺动脉栓塞(PE)中的应用价值。方法 对60例PE患者行双源CT肺动脉成像,按扫描方式随机分为3组:A组,前门控扫描(n=20);B组,回顾性心电门控(简称后门控)扫描(n=20);C组,非心电门控(简称非门控)胸部强化扫描(n=20)。比较3组间的有效辐射剂量(ED)和图像质量评分。结果 3组患者的ED分别为(4.95±1.81)mSv、(15.91±5.01)mSv、(4.61±1.16)mSv;A、B组间和B、C组间差异有统计学意义(P均<0.05),A、C组间差异无统计学意义(P>0.05)。3组图像质量评分的总分分别为57、58、45,A、C组间和B、C组间差异有统计学意义(P均<0.05),A、B组间差异无统计学意义(P>0.05)。结论 前瞻性心电门控技术可在保证图像质量的同时降低辐射剂量,是诊断PE安全、可靠的方法。 |
| 英文摘要: |
| Objective To explore the application value of dual source CT (DSCT) prospective electrocardiography (ECG)-gated pulmonary angiography in the diagnosis of pulmonary embolism (PE). Methods Totally 60 patients with PE were randomly divided into 3 groups (each n=20). Prospective ECG-gated, retrospective ECG-gated pulmonary angiography and non ECG-gated thoracic enhanced scan was performed to group A, group B and group C, respectively. The effective dose (ED) and image quality score of 3 groups were compared. Results The value of ED was (4.95±1.81)mSv in group A, (15.91±5.01)mSv in group B and (4.61±1.16)mSv in group C, respectively. There was statistical difference between group A and B, as well as between group B and C (both P<0.05), while there was no statistical difference between group A and C (P>0.05). The total points of image quality score in 3 groups were 57, 58 and 45, respectively. Statistical differences were found between group A and B and between group A and C (both P<0.05), but no statistical difference was found between group B and C (P>0.05). Conclusion Prospective giving consideration to image quality and radiation dosage in diagnosing PE, ECG-gated pulmonary angiography should be considered as a safe and credible method. |
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