Thiel-embalming technique:investigation of possible modification in embalming tissue as evaluation model for radiofrequency ablation  

作　　者：Peiyu Liao Zhigang Wang 

机构地区：[1]Institute for Medical Science and Technology,University of Dundee,Dundee,Scotland DD2 1FD,United Kingdom [2]School of Engineering,Physics and Mathematics,University of Dundee,Dundee,Scotland DD1 4HN,United Kingdom [3]College of Chemistry and Chemical Engineering,Hunan University,Changsha,Hunan 410000,China [4]College of Engineering,Peking University,Beijing 100671,China.

出　　处：《The Journal of Biomedical Research》2019年第4期280-288,共9页生物医学研究杂志（英文版）

摘　　要：Contrary to freezing preservation and formalin embalming,Thiel embalmed cadaver presents soft texture and color very close to that of living organism,and many applications based on Thiel embalmed cadavers have been reported.However,Thiel embalmed cadavers cannot be used as reliable evaluation model for radiofrequency ablation(RFA)due to dramatic changes of electrical conductivity in the embalmed tissue.To address this issue,we investigated various modifications of the original Thiel embalming solution.By altering the chemicals' species and concentration we figured out a formula that can greatly reduce the embalming fluid's electrical conductivity without significantly compromising the 18-day embalmed kidney samples' suppleness and color.We also investigated a two-stage embalming technique by first submerging the kidney sample into original Thiel's tank fluid for 28 days,then the sample was withdrawn from the tank fluid and placed into modified dilution fluids for additional two weeks.Stiffening and discoloration occurred in these diluted samples implying the reversibility of Thiel-embalmed tissues' suppleness and color with the removal of the strong electrolytes.This study presents a modified embalming method which could be used for RPA evaluation and also helps our understanding of the mechanism of embalmment process.Contrary to freezing preservation and formalin embalming,Thiel embalmed cadaver presents soft texture and color very close to that of living organism,and many applications based on Thiel embalmed cadavers have been reported.However,Thiel embalmed cadavers cannot be used as reliable evaluation model for radiofrequency ablation(RFA)due to dramatic changes of electrical conductivity in the embalmed tissue.To address this issue,we investigated various modifications of the original Thiel embalming solution.By altering the chemicals’ species and concentration we figured out a formula that can greatly reduce the embalming fluid’s electrical conductivity without significantly compromising the 18-day embalmed kidney samples’ suppleness and color.We also investigated a two-stage embalming technique by first submerging the kidney sample into original Thiel’s tank fluid for 28 days,then the sample was withdrawn from the tank fluid and placed into modified dilution fluids for additional two weeks.Stiffening and discoloration occurred in these diluted samples implying the reversibility of Thiel-embalmed tissues’ suppleness and color with the removal of the strong electrolytes.This study presents a modified embalming method which could be used for RPA evaluation and also helps our understanding of the mechanism of embalmment process.

关 键 词：CADAVER embalmment Thiel's EMBALMING fluid electrical CONDUCTIVITY RADIOFREQUENCY ablation 

分 类 号：R33[医药卫生—人体生理学]