Analysis of the factors which influence the measurement of synovial power Doppler signals with semi-quantitative and quantitative measures - A pilot multicenter exercise in Japan

IkedaK.; SetoY.; OhnoS.; SakamotoF.; HenmiM.; FukaeJ.; NaritaA.; NakagomiD.; NakajimaH.; TanimuraK.; KoikeT.

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Analysis of the factors which influence the measurement of synovial power Doppler signals with semi-quantitative and quantitative measures - A pilot multicenter exercise in Japan

机译：半定量和定量测量影响滑膜功率多普勒信号测量的因素分析-日本多中心试验

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Objectives. This pilot multicenter exercise aimed to evaluate the inter-observer reproducibility of synovial power Doppler (PD) signals in rheumatoid arthritis (RA) patients and to determine the factors influencing the measurements. Methods. Two representative RA patients were assessed by four independent experienced sonographers. The influence of machine difference, deterioration of the transducer and pulse repetition frequency (PRF) on the assessment of synovial PD signals was investigated. Results. Intra-class correlation coefficient (ICC) for the scanner-reader reproducibility of semi-quantitative PD score was high (0.867). ICC for the inter-scanner reproducibility of synovial PD pixel count was higher than that of semi-quantitative PD score. The assessment of PD signals significantly differed between two machines with quantitative measurements but did not with semi-quantitative score. The assessment of PD signals with a deteriorated transducer was much less sensitive than that with an intact one. The semi-quantitative scores for PD signals were comparable between three different PRFs (500/800/1,300 Hz), whereas the pixel count was significantly lower with the highest one in the knee joint. Conclusions. Measurement of PD signal can be substantially affected by deteriorated quality of the transducer, whereas the differences are relatively modest between machines with similar specifications and also between PRF settings within a low range.

机译：目标。该试验性多中心练习旨在评估类风湿关节炎（RA）患者滑膜功率多普勒（PD）信号在观察者之间的可重复性，并确定影响测量的因素。方法。由四名经验丰富的独立超声医师评估了两名代表性RA患者。研究了机器差异，换能器的劣化和脉冲重复频率（PRF）对滑膜PD信号评估的影响。结果。类内相关系数（ICC）对半定量PD评分的扫描仪-阅读器再现性较高（0.867）。滑膜PD像素计数的扫描仪间重现性的ICC高于半定量PD得分。在定量测量的两台机器之间，PD信号的评估显着不同，但在半定量得分上却没有。用损坏的换能器评估PD信号的灵敏度远不如使用完整的换能器。 PD信号的半定量得分在三个不同的PRF（500/800 / 1,300 Hz）之间是可比的，而在膝关节中，像素数显着降低，最高。结论。 PD信号的测量可能会受到换能器质量下降的影响，而在规格相似的机器之间以及在较低范围内的PRF设置之间，差异相对较小。

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《Modern rheumatology》 |2014年第3期|共7页
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IkedaK.; SetoY.; OhnoS.; SakamotoF.; HenmiM.; FukaeJ.; NaritaA.; NakagomiD.; NakajimaH.; TanimuraK.; KoikeT.;
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正文语种 eng
中图分类免疫性疾病;
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Inter-observer reliability; Power Doppler; Pulse repetition frequency; Rheumatoid arthritis; Standardization; Ultrasound;

机译：观察者间可靠性;功率多普勒;脉冲重复频率;类风湿关节炎;标准化;超声;

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1. Analysis of the factors which influence the measurement of synovial power Doppler signals with semi-quantitative and quantitative measures - A pilot multicenter exercise in Japan [J] . IkedaK., SetoY., OhnoS., Modern rheumatology . 2014,第3期

机译：半定量和定量测量影响滑膜功率多普勒信号测量的因素分析-日本多中心试验
2. Semi-quantitative analysis of rheumatoid finger joint synovitis using power Doppler ultrasonography: when to perform follow-up study after treatment consisting mainly of antitumor necrosis factor alpha agent [J] . Tamotsu Kamishima, Akira Sagawa, Kazuhide Tanimura, Skeletal Radiology . 2010,第5期

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3. Semi-quantitative analysis of rheumatoid finger joint synovitis using power Doppler ultrasonography: when to perform follow-up study after treatment consisting mainly of antitumor necrosis factor alpha agent. [J] . Kamishima T, Sagawa A, Tanimura K, Skeletal radiology . 2010,第5期

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Analysis of the factors which influence the measurement of synovial power Doppler signals with semi-quantitative and quantitative measures - A pilot multicenter exercise in Japan

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