A preliminary study of the use of bioimpedance in the screening of squamous tongue cancer.

摘要: Oral cancers are the 11th most common malignancy reported worldwide, accounting for 3% of all newly diagnosed cancer cases, and one with high mortality ratios among malignancies. The objective this study was to electrical properties cancerous tongue tissue (CTT) normal (NTT). Five patients participated in study. A disposable probe incorporating four silver electrodes used measure CTT surrounding NTT patients. Measurements were performed at six frequencies: 20 Hz; 50 kHz; 1.3 MHz; 2.5 3.7 5 MHz, amplitude applied voltage limited 200mV. Four measurement parameters impedance (Z), phase angle (theta), real part (R), imaginary (X) assessed see if there any significant difference values obtained NTT. intraclass correlation coefficient showed that measurements reliable. (P < 0.05 parameters) found 50kHz between It also Z R generally smaller than In conclusion, bioimpedance a particular frequency is potentially promising technique screening.