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The international journal of cardiovascular imaging. 2025 Jun 2. doi: 10.1007/s10554-025-03433-7 Q31.52025

Comparison of image quality between photon-counting detector CT and energy-integrating detector coronary CT angiography in heart transplant patients

光子计数检测CT与能量积分检测冠状动脉CT血管造影在心脏移植患者中的图像质量比较研究 翻译改进

Simran P Sharma  1  2, Ricardo P J Budde  1  2, Jan Willem Groen  2, Marcel L Dijkshoorn  2, Olivier C Manintveld  1  3, Alexander Hirsch  4  5

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作者单位

  • 1 Department of Cardiology, Cardiovascular Institute, Thorax Center, Erasmus MC, Room Rg-419, Post Office Box: 2040, Rotterdam, 3000 CA, The Netherlands.
  • 2 Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.
  • 3 , Erasmus MC Transplant Institute, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands.
  • 4 Department of Cardiology, Cardiovascular Institute, Thorax Center, Erasmus MC, Room Rg-419, Post Office Box: 2040, Rotterdam, 3000 CA, The Netherlands. a.hirsch@erasmusmc.nl.
  • 5 Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands. a.hirsch@erasmusmc.nl.
  • DOI: 10.1007/s10554-025-03433-7 PMID: 40456982

    摘要 中英对照阅读

    This study aims to compare the image quality between photon-counting detector computed tomography (PCD-CT) and energy-integrating CT (EID-CT) for coronary artery visualization post-heart transplant (HTx) patients, using a paired comparison within one patient. Consecutive HTx patients who underwent both 3rd generation dual source EID-CT and ultra-high-resolution PCD-CT scans as part of routine clinical care, with a maximum interval of two years between scan... ...点击完成人机验证后继续浏览

    本研究旨在通过单个患者内的配对比较,评估光子计数探测器计算机断层扫描(PCD-CT)与能量积分CT(EID-CT)在心脏移植后冠状动脉成像中的图像质量。连续进行心脏移植的患者如果进行了第三代双源EID-CT和超高分辨率PCD-CT扫描,并且两次扫描之间的最大间隔不超过两年,则被纳入研究。使用5点李克特量表主观评估图像质量,并用信噪比(SNR)和对比噪声比(CNR)进行定量评估。对冠状动脉节段进行了存在、狭窄程度、伪影的存在以及斑块组成的评分。共纳入了30名患者(平均年龄为50±17岁;21人(70%)是男性)。两次扫描之间的中位间隔时间为17[12-24]个月。在EID-CT扫描中的钙化评分为9[0-51],而在PCD-CT扫描中的评分为25[0-92]。在PCD-CT上,有90%的冠状动脉节段被评为非常好或优秀,相比之下,在EID-CT上这一比例为71%(p<0.001)。与EID-CT相比,使用PCD-CT时因尺寸原因被归类为无图像或不可评估的节段更少(30% vs 34%,p<0.001)。PCD-CT识别出更多混合斑块(11% vs 3%,p<0.001)。在PCD-CT上,SNR和CNR显著高于EID-CT(分别为22.1±6.1 和 27.8±6.8,p<0.001);而在EID-CT上为14.3±3.4 和 16.9±3.6。在EID-CT中的CT剂量指数体积为6 [5-10] mGy,在PCD-CT中为19 [14-21] mGy(p<0.001)。超高分辨率的PCD-CT相比于EID-CT,可提高心脏移植患者冠状动脉成像的图像质量。由于具有更优的SNR和CNR,并且非评估节段较少,PCD-CT可以提供更好的冠状动脉可视化效果;但代价是辐射剂量增加。

    关键词:计算机断层血管造影;冠状动脉疾病;心脏移植。

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    期刊名:International journal of cardiovascular imaging

    缩写:INT J CARDIOVAS IMAG

    ISSN:1569-5794

    e-ISSN:1875-8312

    IF/分区:1.5/Q3

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    Comparison of image quality between photon-counting detector CT and energy-integrating detector coronary CT angiography in heart transplant patients