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学科主题: 临床医学
题名:
Color structured light system of chest wall motion measurement for respiratory volume evaluation
作者: Chen, Huijun1,2; Cheng, Yuan3; Liu, Dongdong1,2; Zhang, Xiaodong1,2; Zhang, Jue1,2; Que, Chengli3; Wang, Guangfa3; Fang, Jing1,2
关键词: biomedical optics ; optical systems ; computer vision ; stereoscopy ; three dimensions ; ranging
刊名: JOURNAL OF BIOMEDICAL OPTICS
发表日期: 2010-03-01
DOI: 10.1117/1.3368680
卷: 15, 期:2
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Biochemical Research Methods ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]: Biochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]: PATTERN
英文摘要:

We present a structured light system to dynamically measure human chest wall motion for respiratory volume estimation. Based on a projection of an encoded color pattern and a few active markers attached to the trunk, respiratory volumes are obtained by evaluating the 3-D topographic changes of the chest wall in an anatomically consistent measuring region during respiration. Three measuring setups are established: a single-sided illuminating-recording setup for standing posture, an inclined single-sided setup for supine posture, and a double-sided setup for standing posture. Results are compared with the pneumotachography and show good agreement in volume estimations [correlation coefficient: R>0.99 (P<0.001) for all setups]. The isovolume tests present small variations of the obtained volume during the isovolume maneuver (standard deviation <0.085 L for all setups). After validation by the isovolume test, an investigation of a patient with pleural effusion using the proposed method shows pulmonary functional differences between the diseased and the contralateral sides of the thorax, and subsequent improvement of this imbalance after drainage. These results demonstrate the proposed optical method is capable of not only whole respiratory volume evaluation with high accuracy, but also regional pulmonary function assessment in different chest wall behaviors, with the advantage of whole-field measurement. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3368680]

语种: 英语
所属项目编号: 2007CB935602 ; 90607004 ; 10672005
项目资助者: National Basic Research Program ; National Natural Science Foundation of China (NSFC)
WOS记录号: WOS:000278465300044
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/67969
Appears in Collections:北京大学第一临床医学院_呼吸和危重症医学科_期刊论文

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作者单位: 1.Peking Univ, Coll Engn, Dept Biomed Engn, Beijing 100871, Peoples R China
2.Peking Univ, Acad Adv Interdisciplinary Studies, Biomed X Ctr, Beijing 100871, Peoples R China
3.Peking Univ, Hosp 1, Dept Resp Med, Beijing 100034, Peoples R China

Recommended Citation:
Chen, Huijun,Cheng, Yuan,Liu, Dongdong,et al. Color structured light system of chest wall motion measurement for respiratory volume evaluation[J]. JOURNAL OF BIOMEDICAL OPTICS,2010,15(2).
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