strategy XCT-2000L测量小儿前臂骨密度、质量、尺寸、力学参数和软组织组成的精度误差和最不显著变化。

IF 1.7 4区医学 Q4 NEUROSCIENCES

Journal of musculoskeletal & neuronal interactions Pub Date : 2023-12-01

Maciej Jaworski, Maria Kobylińska

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引用次数: 0

摘要

目的:外周定量计算机断层扫描(pQCT)在儿科密度测量领域越来越受欢迎，然而，对这种方法在患病儿童中的精度误差知之甚少。本研究的目的是评估患病儿童前臂骨密度、质量、尺寸、强度、力学参数和软组织的精度误差。方法:采用strategy XCT 2000L仪器。测量部位分别为前臂长度的4%和66%。研究组包括60例患者(31名女孩)，年龄分别为5岁、7岁至18岁。结果:我们观察到精度误差与体型之间的关系，r在-0,37到0,28之间。相对精度误差(CV%RMS)从半径66%皮质骨密度0.85%到脂肪横截面积与肌肉横截面积比3.82%。最小显著变化(Least significant change, LSC)分别从2.73%到10.59%。结论:本研究显示pQCT方法在患病儿童的前臂是一种相对精确的技术。结果可能有助于规划和解释患病儿童的pQCT研究。

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本刊更多论文

Precision errors and least significant changes in paediatric forearm measurements of bone density, mass, dimensions, mechanostat parameters and soft tissue composition by Stratec XCT-2000L.

Objectives: The peripheral quantitative computed tomography (pQCT) is gaining popularity in the field of paediatric densitometry, however, very little is known about the precision errors of this method in diseased children. The aim of the study was to evaluate the precision errors of bone density, mass, dimensions, strength, mechanostat parameters and soft tissue at the forearm in diseased children.

Methods: Stratec XCT 2000L apparatus was used. The measurement sites were 4% and 66% of the forearm length. The study group consisted of 60 patients (31 girls) aged 5,7-18,0 yrs.

Results: We observed week relationships between precision errors and body size with r from -0,37 to 0,28. Relative precision errors (CV%_RMS) were from 0,85% for radius 66% cortical bone density to 3,82% for fat cross-sectional area to muscle cross-sectional area ratio. Least significant change (LSC) was from 2,73% to 10,59%, respectively.

Conclusion: Presented study reveal pQCT method at the forearm in diseased children as relatively precise technique. The results may help with planning and interpretation of pQCT studies in diseased children.

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来源期刊

Journal of musculoskeletal & neuronal interactions NEUROSCIENCES-PHYSIOLOGY

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Musculoskeletal and Neuronal Interactions (JMNI) is an academic journal dealing with the pathophysiology and treatment of musculoskeletal disorders. It is published quarterly (months of issue March, June, September, December). Its purpose is to publish original, peer-reviewed papers of research and clinical experience in all areas of the musculoskeletal system and its interactions with the nervous system, especially metabolic bone diseases, with particular emphasis on osteoporosis. Additionally, JMNI publishes the Abstracts from the biannual meetings of the International Society of Musculoskeletal and Neuronal Interactions, and hosts Abstracts of other meetings on topics related to the aims and scope of JMNI.