Tozawa Ryosuke, Katoh Munenori, Aramaki Hidefumi, Kawasaki Tsubasa, Nishikawa Yuichi, Kumamoto Tsuneo, Fujinawa Osamu
Department of Physical Therapy, Faculty of Health Science, Ryotokuji University, Japan; Graduate Course of Health and Social Services, Saitama Prefectural University, Japan.
Department of Physical Therapy, Faculty of Health Science, Ryotokuji University, Japan.
J Phys Ther Sci. 2016 Aug;28(8):2210-3. doi: 10.1589/jpts.28.2210. Epub 2016 Aug 31.
[Purpose] The intra- and inter-examiner reliabilities of lumbar interspinous process distances measured by ultrasound imaging were examined. [Subjects and Methods] The subjects were 10 males who had no history of orthopedic diseases or dysfunctions. Ten lumbar interspinous images from 360 images captured from 10 subjects were selected. The 10 images were measured by nine examiners. The lumbar interspinous process distance measurements were performed five times by each examiner. In addition, four of the nine examiners measured the distances again after 4 days for test-retest analysis. In statistical analysis, the intraclass correlation coefficient was used to investigate relative reliability, and Bland-Altman analysis was used to investigate absolute reliability. [Results] The intraclass correlation coefficients (1, 1) for intra-examiner reliability ranged from 0.985 to 0.998. For inter-rater reliability, the intraclass correlation coefficient (2, 1) was 0.969. The intraclass correlation coefficients (1, 2) for test-retest reliability ranged from 0.991 to 0.999. The Bland-Altman analysis results indicated no systematic error. [Conclusion] The results indicate that ultrasound measurements of interspinous process distance are highly reliable even when measured only once by a single person.
[目的] 研究超声成像测量腰椎棘突间距离时检查者内和检查者间的可靠性。[对象与方法] 对象为10名无骨科疾病或功能障碍病史的男性。从10名受试者采集的360张图像中选取10张腰椎棘突间图像。9名检查者对这10张图像进行测量。每位检查者对腰椎棘突间距离测量5次。此外，9名检查者中的4名在4天后再次测量距离以进行重测分析。在统计分析中，组内相关系数用于研究相对可靠性，Bland-Altman分析用于研究绝对可靠性。[结果] 检查者内可靠性的组内相关系数（1,1）范围为0.985至0.998。对于检查者间可靠性，组内相关系数（2,1）为0.969。重测可靠性的组内相关系数（1,2）范围为0.991至0.999。Bland-Altman分析结果表明无系统误差。[结论] 结果表明，即使由单人仅测量一次，超声测量棘突间距离也具有高度可靠性。
