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Journal of Biomedical Optics

Assessment of the effects of ultrasound-mediated glucose on permeability of normal, benign, and cancerous human lung tissues with the Fourier-domain optical coherence tomography
Author(s): Huajiang Wei; Guoyong Wu; Zhouyi Guo; Hongqin Yang; Yonghong He; Shusen Xie; Xiao Guo
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Paper Abstract

The objective of this study was to evaluate the effects of ultrasound-mediated analyte diffusion on permeability of normal, benign, and cancerous human lung tissue in vitro and to find more effective sonophoretic (SP) delivery in combination with the optical clearing agents (OCAs) method to distinguish normal and diseased lung tissues. The permeability coefficients of SP in combination with OCAs diffusion in lung tissue were measured with Fourier-domain optical coherence tomography (FD-OCT). 30% glucose and SP with a frequency of 1 MHz and an intensity of 0.80 W/cm2 over a 3 cm probe was simultaneously applied for 15 min. Experimental results show that the mean permeability coefficients of 30% glucose/SP were found to be (2.01±0.21)×10-5 cm/s from normal lung (NL) tissue, (2.75±0.28)×10-5 cm/s from lung benign granulomatosis (LBG) tissue, (4.53±0.49)×10-5 cm/s from lung adenocarcinoma tumor (LAT) tissue, and (5.81±0.62)×10-5 cm/s from lung squamous cell carcinoma (LSCC) tissue, respectively. The permeability coefficients of 30% glucose/SP increase approximately 36.8%, 125.4%, and 189.1% for the LBG, LAT, and LSCC tissue compared with that for the NL tissue, respectively. There were statistically significant differences in permeability coefficients of 30% glucose/SP between LBG and NL tissue (p<0.05), between LAT and NL tissue (p<0.05), and between LSCC and NL tissue (p<0.05). The results suggest that the OCT functional imaging technique to combine an ultrasound-OCAs combination method could become a powerful tool in early diagnosis and monitoring of changed microstructure of pathologic human lung tissue.

Paper Details

Date Published: 1 November 2012
PDF: 6 pages
J. Biomed. Opt. 17(11) 116006 doi: 10.1117/1.JBO.17.11.116006
Published in: Journal of Biomedical Optics Volume 17, Issue 11
Show Author Affiliations
Huajiang Wei, South China Normal Univ. (China)
Guoyong Wu, Sun Yat-Sen Univ. (China)
Zhouyi Guo, South China Normal Univ. (China)
Hongqin Yang, Fujian Normal Univ. (China)
Yonghong He, Graduate School at Shenzhen,Tsinghua Univ. (China)
Shusen Xie, Fujian Normal Univ. (China)
Xiao Guo, South China Normal Univ. (China)

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