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| VIP Analysis to Simplify the NIR Detection Study of the Dural Hematoma |
| ZHANG Yan-jun1, SUN Qiu-ming1, WANG Hui-quan2, ZHAO Zhe2, SUN Jing-gong1, MA Jun1*, LIU Dong-yuan1, 2 |
1. Institute of Medical Equipment, Academy of Military Medical Sciences, Tianjin 300161, China
2. School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300387, China |
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Abstract Detection of dural hematoma based on multi-channel near-infrared differential absorbance has the advantages of rapidity and non-invasion. In addition，the reasonable setting of the detection array can reduce the morbidity of the model and improve the prediction accuracy of the absorption coefficient. In this paper, variable importance in the projection (VIP) analysis, an ancillary technique of pls, is used to select the detection array. A preliminary modeling for the prediction of dural position μa was established using light absorbance information from 30 detectors located at 2.0~5.0 cm from the light source with a 0.1 cm interval. After VIP screening, the detection array of 4 detection positions is determined, and the optical density information obtained by this array is used for modeling. Moreover, the relative error of the prediction result is reduced from 4.08% to 2.06%. After VIP detector screening, the prediction model still showed good prediction of the epidural position μa. This study provides a new approach and important reference for the selection of detector location in near-infrared dural hematoma detection.
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Received: 2017-05-22
Accepted: 2017-10-08
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Corresponding Authors:
MA Jun
E-mail: majun7310@163.com
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