成人囊性纤维化患者的低剂量高分辨率胸部 CT:光子计数和能量积分探测器 CT 的个体内比较。

IF 3.7 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Marko Frings, Matthias Welsner, Christin Mousa, Sebastian Zensen, Luca Salhöfer, Mathias Meetschen, Nikolas Beck, Denise Bos, Dirk Westhölter, Johannes Wienker, Christian Taube, Lale Umutlu, Benedikt M Schaarschmidt, Michael Forsting, Johannes Haubold, Sivagurunathan Sutharsan, Marcel Opitz
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引用次数: 0

摘要

背景:使用低剂量高分辨率(LD-HR)计算机断层扫描(CT)进行定期疾病监测对于囊性纤维化患者(pwCF)的临床管理非常必要。本研究旨在比较光子计数 CT(PCCT)和能量集成探测器系统 CT(EID-CT)对囊性纤维化患者进行低剂量高分辨率 CT 扫描的图像质量和辐射剂量:这项回顾性研究纳入了 23 名接受 PCCT LD-HR 胸部 CT 的患儿,他们之前都接受过 EID-CT LD-HR 胸部 CT。对辐射剂量和图像质量进行了个体内部比较。研究测量了剂量-长度乘积、容积 CT 剂量指数、有效剂量和信噪比 (SNR)。三位双盲放射科医生采用 5 点李克特量表对整体图像质量、图像清晰度和图像噪声进行评估,图像质量和图像清晰度从 1 分(不足)到 5 分(非常好)不等,图像噪声从 1 分(非常高)到 5 分(非常低)不等:结果:PCCT 的辐射剂量比 EID-CT 少约 42%(中位数有效剂量为 0.54 对 0.93 mSv,p):与 EID-CT 相比,使用 PCCT 扫描的 LD-HR 胸部 CT 方案可为 pwCF 提供更好的图像质量并减少辐射量:相关性声明:对于 pwCF,可通过光子计数 CT 代替 EID-CT 进行定期随访,在降低辐射暴露和提高图像质量方面都有很大优势:对 23 名囊性纤维化患者(pwCF)的光子计数 CT(PCCT)和能量集成探测器系统 CT(EID-CT)进行了比较。PCCT 的图像质量评分高于 EID-CT。与 EID-CT 相比,PCCT 的辐射剂量减少了约 42%,图像质量却更胜一筹。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Low-dose high-resolution chest CT in adults with cystic fibrosis: intraindividual comparison between photon-counting and energy-integrating detector CT.

Background: Regular disease monitoring with low-dose high-resolution (LD-HR) computed tomography (CT) scans is necessary for the clinical management of people with cystic fibrosis (pwCF). The aim of this study was to compare the image quality and radiation dose of LD-HR protocols between photon-counting CT (PCCT) and energy-integrating detector system CT (EID-CT) in pwCF.

Methods: This retrospective study included 23 pwCF undergoing LD-HR chest CT with PCCT who had previously undergone LD-HR chest CT with EID-CT. An intraindividual comparison of radiation dose and image quality was conducted. The study measured the dose-length product, volumetric CT dose index, effective dose and signal-to-noise ratio (SNR). Three blinded radiologists assessed the overall image quality, image sharpness, and image noise using a 5-point Likert scale ranging from 1 (deficient) to 5 (very good) for image quality and image sharpness and from 1 (very high) to 5 (very low) for image noise.

Results: PCCT used approximately 42% less radiation dose than EID-CT (median effective dose 0.54 versus 0.93 mSv, p < 0.001). PCCT was consistently rated higher than EID-CT for overall image quality and image sharpness. Additionally, image noise was lower with PCCT compared to EID-CT. The average SNR of the lung parenchyma was lower with PCCT compared to EID-CT (p < 0.001).

Conclusion: In pwCF, LD-HR chest CT protocols using PCCT scans provided significantly better image quality and reduced radiation exposure compared to EID-CT.

Relevance statement: In pwCF, regular follow-up could be performed through photon-counting CT instead of EID-CT, with substantial advantages in terms of both lower radiation exposure and increased image quality.

Key points: Photon-counting CT (PCCT) and energy-integrating detector system CT (EID-CT) were compared in 23 people with cystic fibrosis (pwCF). Image quality was rated higher for PCCT than for EID-CT. PCCT used approximately 42% less radiation dose and offered superior image quality than EID-CT.

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来源期刊
European Radiology Experimental
European Radiology Experimental Medicine-Radiology, Nuclear Medicine and Imaging
CiteScore
6.70
自引率
2.60%
发文量
56
审稿时长
18 weeks
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