%0 Journal Article
%T Espectroscopia de impedancia el谷ctrica en c芍ncer invasivo del cuello uterino en mujeres de Caldas (Colombia), 2008-2009 Electrical impedance spectroscopy in cervical cancer in women from Caldas, Colombia 2008-2009
%A Germ芍n Olarte-Echeverri
%A William Aristiz芍bal-Botero
%A Gloria F芍tima Osorio-G
%A Jer車nimo Rojas-D赤az
%J Revista Colombiana de Obstetricia y Ginecolog赤a
%D 2010
%I Federaci車n Colombiana de Asociaciones de Obstetricia y Ginecolog赤a
%X Objetivo: obtener las curvas de resistividad el谷ctrica de tejido cervical en presencia de c芍ncer invasivo del cuello uterino. Metodolog赤a: estudio de corte transversal en pacientes con carcinoma invasor del c谷rvix. Se utiliz車 un medidor de impedancia de tejido (Electrical Impedance Spectroscopy Mk3.5 single channel system), el cual, mediante una sonda tetrapolar con dos electrodos de corriente y dos de voltaje, permite calcular la impedancia de transferencia de los tejidos. Resultados: se realizaron 102 mediciones y se obtuvieron las curvas de resistividad del tejido cervical en 18 mujeres con edades entre 46 y 72 a os (56+/-9, media +/-DS). De esta manera, se encontr車 que los tejidos presentan una curva de resistividad caracter赤stica para c芍ncer invasivo de c谷rvix con par芍metros de resistividad promedio (R0 = 4,35+/-2,26 [次-m], media +/-DSy R﹢ = 1,41+/-0,57 [次-m]). Con estos estimativos se obtuvieron los valores de la resistividad de los l赤quidos extra e intracelular (R = 4,35+/-2,26 [次-m] y S = 2,44+/-1,11 [次-m]). Conclusi車n: la espectroscopia de impedancia el谷c trica muestra un patr車n diferente en tejidos prove nientes de carcinoma invasor del c谷rvix en relaci車n con el tejido cervical sano. Objective: obtaining electrical resistivity curves for cervical tissues in invasive cervical cancer. Methodology: a tissue impedance meter was used (MK 3.5 Electrical Impedance Spectroscopy, single channel system) in this cross-sectional study of invasive cervical cancer patients; it led to calculating the tissues＊ transfer impedance by means of a pencil probe incorporating four gold electrodes. Results: 102 measurements were made and resistivity curves for cervical tissue were obtained in 18 women aged 46 to 72 (56㊣9, mean ㊣ SD). These tissues presented a special resistivity curve for invasive cervical cancer, average resistivity parameters being (R0 = 4.35 ㊣ 2.26 [次-m] and R﹢ = 1.41 ㊣ 0.57 [次-m]). Resistivity values for those estimations (R = 4.35 ㊣ 2.26 [次-m] and S = 2.44 ㊣ 1.11 [次-m]). Conclusion: electrical impedance spectroscopy presented different patterns for invasive cervical cancer tissue and healthy tissue.
%K espectroscopia
%K an芍lisis espectral
%K impedancia el谷ctrica
%K c芍ncer de cuello uterino
%K neoplasias del cuello uterino
%K spectrum analysis
%K electric impedance
%K uterine cervical neoplasia
%K cervix neoplasms
%U http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0034-74342010000100004