太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2014年
5期
667-670,677
,共5页
刘乔%陈志强%雷江波%孟坤%朱礼国%李泽仁%吴军
劉喬%陳誌彊%雷江波%孟坤%硃禮國%李澤仁%吳軍
류교%진지강%뢰강파%맹곤%주례국%리택인%오군
太赫兹时域光谱%透射特性%医用棉纱%医学诊断
太赫玆時域光譜%透射特性%醫用棉紗%醫學診斷
태혁자시역광보%투사특성%의용면사%의학진단
Terahertz Time-Domain Spectroscopy%transmittance properties%medical cotton gauze%biomedical diagnosis
生物医学诊断是太赫兹成像的重要应用领域。利用透射式太赫兹时域光谱(THz-TDS)在实验室温湿度条件下研究了用于伤口覆盖的医用棉纱布在0.1 THz～1.34 THz波段的透射特性。结果表明，在该波段，纱布对太赫兹辐射具有良好的透过性，且随频率增加，透射率迅速下降。利用最小二乘拟合得到太赫兹波透射率和纱布层数关系曲线，相关系数达0.996，并由此获得0.37 THz处0.34 mm 厚单层纱布对太赫兹波的透射衰减系数约为0.1597。本研究表明太赫兹光谱成像是包扎情况下烧伤评估、伤口恢复期监测的有效临床工具。
生物醫學診斷是太赫玆成像的重要應用領域。利用透射式太赫玆時域光譜(THz-TDS)在實驗室溫濕度條件下研究瞭用于傷口覆蓋的醫用棉紗佈在0.1 THz～1.34 THz波段的透射特性。結果錶明，在該波段，紗佈對太赫玆輻射具有良好的透過性，且隨頻率增加，透射率迅速下降。利用最小二乘擬閤得到太赫玆波透射率和紗佈層數關繫麯線，相關繫數達0.996，併由此穫得0.37 THz處0.34 mm 厚單層紗佈對太赫玆波的透射衰減繫數約為0.1597。本研究錶明太赫玆光譜成像是包扎情況下燒傷評估、傷口恢複期鑑測的有效臨床工具。
생물의학진단시태혁자성상적중요응용영역。이용투사식태혁자시역광보(THz-TDS)재실험실온습도조건하연구료용우상구복개적의용면사포재0.1 THz～1.34 THz파단적투사특성。결과표명，재해파단，사포대태혁자복사구유량호적투과성，차수빈솔증가，투사솔신속하강。이용최소이승의합득도태혁자파투사솔화사포층수관계곡선，상관계수체0.996，병유차획득0.37 THz처0.34 mm 후단층사포대태혁자파적투사쇠감계수약위0.1597。본연구표명태혁자광보성상시포찰정황하소상평고、상구회복기감측적유효림상공구。
Biomedical diagnosis is an important application of terahertz imaging. The transmission properties of medical cotton gauzes as wound cover under 0.1THz-1.34THz are characterized by a transmission Terahertz Time-Domain Spectroscopy(THz-TDS). Results indicate that gauzes exhibit good transmission performance in researched waveband; and the power transmittance rapidly decreases with the increase of frequency. The fitting curve of THz power transmittance vs. layer numbers of gauzes is obtained with a correlation coefficient of 0.996 by using the least square fitting; from which, a transmission attenuation coefficient of 0.1597 is obtained for a single layer of gauze with 0.34mm thickness at 0.37THz. This research shows that terahertz spectral imaging can be used as a powerful clinical tool for burn evaluation and wound healing progress monitoring.
