title: Monitoring retroperitoneal bleeding model of piglets by electrical impedance tomography.
abstract: To investigate continuous monitoring capacity of electrical impedance tomography (EIT) for retroperitoneal bleeding, studies were carried out on six anesthetized piglet's bleeding model produced by injecting anticoagulated blood into renal region. For each subject, total blood of about 200 ml was injected within time periods ranging from tens of minutes to several hours. The simulated bleeding processes were detected and monitored by EIT system with sixteen electrodes at a rate of one image per second. EIT images were reconstructed by dynamic back-projection algorithm. The results showed that impedance changes caused by bleeding could be revealed by EIT images.
authors.affiliation: Department of Biomedical Engineering, Fourth Military Medical University, Xi'an 710032, China. yfusheng@263.net
authors.forename: Fusheng
authors.initials: F
authors.lastname: You
authors.forename: Wanjun
authors.initials: W
authors.lastname: Shuai
authors.forename: Xuetao
authors.initials: X
authors.lastname: Shi
authors.forename: Feng
authors.initials: F
authors.lastname: Fu
authors.forename: Ruigang
authors.initials: R
authors.lastname: Liu
authors.forename: Xiuzhen
authors.initials: X
authors.lastname: Dong
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D005260:Female; D006470:Hemorrhage / Q000175:diagnosis*; D006801:Humans; D008297:Male; D010532:Peritoneal Diseases / Q000175:diagnosis*; D010992:Plethysmography, Impedance / Q000379:methods*; D012680:Sensitivity and Specificity; D013552:Swine; D014054:Tomography / Q000379:methods*