Monitoring water content of rat lung tissue in vivo using microwave reflectometry

Medical and Biological Engineering and Computing

Volumn 42, Issue 5, 2004, Pages 577-580

  Schaefer, Michael ^a   Nowak, K ^b   Kherad, B ^a   Gross, W ^a   Post, S ^b   Gebhard, M M ^a  

^a UNIVERSITY OF HEIDELBERG   (Germany)

^b UNIVERSITY OF HEIDELBERG   (Germany)

Author keywords

Dielectric polarisation; Lung injury; Pulmonary oedema; Rat; Tissue model

Indexed keywords

BIOLOGICAL ORGANS; BLOOD; DATA REDUCTION; LIVING SYSTEMS STUDIES; MATHEMATICAL MODELS; MICROWAVES; PERMITTIVITY;

DIELECTRIC POLARIZATION; DIELECTRIC SPECTRUM; MICROWAVE FREQUENCIES; WATER CONTENT;

TISSUE;

WATER;

AIR; ARTICLE; CONTROLLED STUDY; IN VIVO STUDY; LUNG BLOOD FLOW; LUNG EDEMA; LUNG FLUID; LUNG INJURY; LUNG PARENCHYMA; LUNG PERFUSION; MONITORING; NON INVASIVE MEASUREMENT; NONHUMAN; POLARIZATION; RAT; REFLECTOMETRY; TISSUE WATER; WATER CONTENT;

ANIMALS; BODY WATER; LUNG; MICROWAVES; MODELS, BIOLOGICAL; MONITORING, PHYSIOLOGIC; PULMONARY EDEMA; RATS; RATS, WISTAR;

EID: 6344277091     PISSN: 01400118     EISSN: None     Source Type: Journal    
DOI: 10.1007/BF02347537     Document Type: Article

References (21)

1. Böttcher, C. J. F., and Bordeweijk, P. (1978): 'Theory of electric polarisation' (Elsevier, Amsterdam, 1978)
2. Brown, B. H., Primhak, R. A., Smallwood, R. H., Milnes, P., Narracott, A. J., and Jackson, M. J. (2002a): 'Neonatal lungs - can absolute lung resistivity be determined non-invasively?', Med. Biol. Eng. Comput., 40, pp. 388-394
3. Brown, B. H., Primhak, R. A., Smallwood, R. H., Milnes, P., Narracott, A. J., and Jackson, M. J. (2002b): 'Neonatal lungs: maturational changes in lung resistivity spectra', Med. Biol. Eng. Comput., 40, pp. 506-511
4. Demling, R. H., Lalonde, C., and Ikegami, K. (1993): 'Pulmunary edema: pathophysiology, methods of measurement, and clinical importance in acute respiratory failure', New Horiz., 1, pp. 371-380
5. Foster, K. R., and Schwan, H. P. (1989): 'Dielectric properties of tissues and biological materials: a critical review', Crit. Rev. Biomed. Eng., 17, pp. 25-104
6. Genoni, M., Biraima, A. M., Bode, B., Shan, A. C., Wilkler, M. B., and Turina, M. I. (2001): 'Combined resection and adjuvant therapy improves prognosis of sarcomas of the pulmonary trunk', Cardiovasc. Surg., 42, pp. 829-833
7. Iskander, M. F., and Durney, C. H. (1983): 'Microwave methods of measuring changes in lung water', J. Microwave Power, 18, pp. 265-275
8. Kaatze, U., and Uhlendorf, V. (1981): 'Dielectric properties of water at microwave frequencies', Z. Phys. Chem., 126, pp. 152-165
9. Lange, N. R., and Schuster, D. P. (1999): 'The measurement of lung water', Crit. Care, 3, pp. R19-R24
10. Miura, N., Shioya, S., Kurita, D., Shigematsu, T., and Mashimo, S. (1999): 'Time domain reflectometry: measurement of free water in normal lung and pulmonary edema', Am. J. Physiol., 276, pp. L207-L212
11. Novick, R. J., Gehman, K. E., Ali, I. S., and Lee, J. (1996): 'Lung preservation: the importance of endothelial and alveolar type II cell integrity', Ann. Thorac. Surg., 62, pp. 302-314
12. Nowak, K., Kammler, M., Bock, M., Motsch, J., Hagl, S., Jacob, H., and Gebhard, M. M. (2002): 'Bronchial artery revascularization affects graft recovery after lung transplantation', Am. J. Respir. Crit. Care. Med., 165, pp. 216-220
13. Rigaud, B., Morucci, J.-P., and Chauveau, N. (1996): 'Bioelectrical impedance techniques in medicine', Crit. Rev. Biomed. Eng., 24, pp. 257-351
14. Sakka, S. G., Klein, M., Reinhart, K., and Meier-Hellmann, A. (2002): 'Prognostic value of extravascular lung water in critically ill patients', Chest, 122, pp. 2080-2086
15. Schaefer, M., Gross, W, Ackemann, J., and Gebhard, M. M. (2002): 'The complex dielectric spectrum of heart tissue during ischemia', Bioelectrochemistry, 58, pp. 171-180
16. Schaefer, M., Gross, W., Preuss, M., Ackemann, J., and Gebhard, M. M. (2003): 'Monitoring of water content and water distribution in ischemic hearts', Bioelectrochemistry, 61, pp. 85-92
17. Schwan, H. P. (1957): 'Electrical properties of tissues and cell suspensions', Adv. Biol. Med. Phys., 5, pp. 147-209
18. Sibbald, W. J., Warshawski, F. J., Short A. K., Harris, J., Lefcoe, M. S., and Holliday, R. L. (1983): 'Clinical studies of measuring extravascular lung water by the thermal dye technique in critically ill patients', Chest, 83, pp. 725-731
19. Sivak, E. D., Starr, N. J., Graves, J. W, Cosgrove, D. M., Borsh, J., and Estafanous, F. G. (1982): 'Extravascular lung water values in patients undergoing coronary artery bypass surgery', Crit. Care Med., 10, pp. 593-596
20. Staub, N. C. (1983): 'The measurement of lung water content', J. Microwave Power, 18, pp. 259-263
21. Ware, L. B., and Matthay, M. A. (2000): 'The acute respiratory distress syndrome', N. Engl. J. Med., 342, pp. 1334-1349