Bladder Volume Monitoring Using Electrical Impedance Tomography With Simultaneous Multi-Tone Tissue Stimulation and DFT-Based Impedance Calculation Inside an FPGA

• Published in: IEEE transactions on biomedical circuits and systems Vol. 14; no. 4; pp. 775 - 786
• Main Authors: Rosa, Bruno M. G., Yang, Guang Z.
• Format: Journal Article
• Language: English
• Published: United States IEEE 01.08.2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adult; Biomedical measurement; Bladder; Bladder volume; Catheterization; Computer applications; Electric Impedance; Electrical impedance; electrical impedance tomography (EIT); Electrodes; embedded electronics; Equipment Design; Experimentation; field programmable gate array (FPGA); Field programmable gate arrays; finite integration technique; Fourier Analysis; Fourier transforms; Gauss-Newton method; Humans; Impedance; Impedance measurement; Inverse problems; Male; Mathematical models; Newton methods; Phantoms, Imaging; Regularization; Signal Processing, Computer-Assisted - instrumentation; Tissues; Tomography; Tomography - instrumentation; Urinary bladder; Urinary Bladder - anatomy & histology; Urinary Bladder - diagnostic imaging; Urinary Bladder - physiology; Volume measurement

In this article, a novel method for measuring the volume of the urinary bladder non-invasively is presented that relies on the principles dictated by Electrical Impedance Tomography (EIT). The electronic prototype responsible for injecting innocuous electrical currents to the lower abdominal region...