Three-dimensional and thermal surface imaging produces reliable measures of joint shape and temperature: a potential tool for quantifying arthritis.
Three-dimensional and thermal surface imaging produces reliable measures of joint shape and temperature: a potential tool for quantifying arthritis.
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DOI：
10.1186/ar2360
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发表时间：
2008
影响因子：
4.9
通讯作者：
Hirsch R
中科院分区：
文献类型：
--
作者：
Spalding SJ;Kwoh CK;Boudreau R;Enama J;Lunich J;Huber D;Denes L;Hirsch R
活动性关节炎关节的评估是广泛使用的结局指标的核心组成部分。 然而，在评估这些活动关节计数时，检查者内部和之间存在很大的差异。 肿胀和温度的变化，两个质量估计在主动关节计数，是适合量化使用非接触式数字成像技术。 我们试图探索三维（3D）和热成像可靠地测量关节形状和温度的能力。 使用Minolta 910 Vivid非接触式3D激光扫描仪和Meditherm med 2000 Pro红外相机来创建腕关节和掌指关节（MCP）的数字表示。 专用软件为每个关节区域生成3个定量测量：1）体积; 2）表面分布指数（SDI），关节形状的标记，表示从皮肤表面上的点到固定参考平面的垂直距离的标准偏差; 3）热分布指数（HDI），表示温度的标准误差。 来自5名关节炎受试者的7个手腕和6个MCP区域用于开发和验证3D图像采集和处理技术。 从17名活动性关节炎患者的18个腕关节和9个MCP区域获得HDI值，并与5名对照组的10个腕关节和MCP区域的数据进行比较。 计算每个定量指标的标准差（SD）、变异系数（CV）和组内相关系数（ICC），以确定其可靠性。 体积和SDI的CV <1.3%，ICC大于0.99。 热测量的可靠性低于3D测量。 然而，观察到对照组和关节炎HDI值之间存在显著差异。 关节炎关节的两个病例研究表明，肿胀和温度的变化与症状和体格检查结果的变化相对应。 3D和热成像提供了关节体积、形状和热模式的可靠测量。 进一步的改进可能会导致使用这些技术来改善关节炎疾病活动的评估。
The assessment of joints with active arthritis is a core component of widely used outcome measures. However, substantial variability exists within and across examiners in assessment of these active joint counts. Swelling and temperature changes, two qualities estimated during active joint counts, are amenable to quantification using noncontact digital imaging technologies. We sought to explore the ability of three dimensional (3D) and thermal imaging to reliably measure joint shape and temperature. A Minolta 910 Vivid non-contact 3D laser scanner and a Meditherm med2000 Pro Infrared camera were used to create digital representations of wrist and metacarpalphalangeal (MCP) joints. Specialized software generated 3 quantitative measures for each joint region: 1) Volume; 2) Surface Distribution Index (SDI), a marker of joint shape representing the standard deviation of vertical distances from points on the skin surface to a fixed reference plane; 3) Heat Distribution Index (HDI), representing the standard error of temperatures. Seven wrists and 6 MCP regions from 5 subjects with arthritis were used to develop and validate 3D image acquisition and processing techniques. HDI values from 18 wrist and 9 MCP regions were obtained from 17 patients with active arthritis and compared to data from 10 wrist and MCP regions from 5 controls. Standard deviation (SD), coefficient of variation (CV), and intraclass correlation coefficients (ICC) were calculated for each quantitative measure to establish their reliability. CVs for volume and SDI were <1.3% and ICCs were greater than 0.99. Thermal measures were less reliable than 3D measures. However, significant differences were observed between control and arthritis HDI values. Two case studies of arthritic joints demonstrated quantifiable changes in swelling and temperature corresponding with changes in symptoms and physical exam findings. 3D and thermal imaging provide reliable measures of joint volume, shape, and thermal patterns. Further refinement may lead to the use of these technologies to improve the assessment of disease activity in arthritis.
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影响因子：
27.4
作者：
COLLINS, AJ;RING, EFJ;BACON, PA
通讯作者：
BACON, PA
影响因子：
3.9
作者：
Kovacs, Laszlo;Edera, Maximilian;Biemer, Edgar
通讯作者：
Biemer, Edgar
DOI：
10.1016/0141-5425(90)90002-5
发表时间：
1990-07-01
期刊：
JOURNAL OF BIOMEDICAL ENGINEERING
影响因子：
--
作者：
BLACK, CM;CLARK, RP;SPIKES, HA
通讯作者：
SPIKES, HA
影响因子：
27.4
作者：
DEVEREAUX, MD;PARR, GR;HAZLEMAN, BL
通讯作者：
HAZLEMAN, BL
影响因子：
5.5
作者：
Highton, J;Markham, V;Davidson, PL
通讯作者：
Davidson, PL