<p>Breast Cancer Detection Using Low-Frequency Bioimpedance Device</p>

Early diagnosis of lymphedema using multiple frequency bioimpedance.

Multiple frequency bioelectrical impedance analysis (MFBIA) has previously been shown to provide accurate relative measures of lymphedema in the upper limb of patients (1). This paper reports the results of a three year prospective study to evaluate the efficacy of MFBIA to predict the early onset of lymphedema in patients following treatment for breast cancer. Bioelectrical impedance measureme...

Multi-frequency bioimpedance in human muscle assessment

Bioimpedance analysis (BIA) is a well-known and tested method for body mass and muscular health assessment. Multi-frequency BIA (mfBIA) equipment now makes it possible to assess a particular muscle as a whole, as well as looking at a muscle at the fiber level. The aim of this study was to test the hypothesis that mfBIA can be used to assess the anatomical, physiological, and metabolic state of ...

Detection and localization of internal haemorrhaging using electrical bioimpedance

Human mouth state detection using low frequency ultrasound

Low frequency ultrasound (LFUS) provides an analysis mode for speech processing applications which is intrinsically robust to audible noise. Current solutions tend to rely on Doppler frequency shift to estimate movement of facial components during speech production. However, these approaches do not consider special attributes of LFUS propagation inside the vocal tract and consequently they do n...

Low-Power Dividerless Frequency Synthesis Using Aperture Phase Detection

A phase-locked-loop (PLL)-based frequency synthesizer incorporating a phase detector that operates on a windowing technique eliminates the need for a frequency divider. This new loop architecture is applied to generate the 1.573-GHz local oscillator (LO) for a Global Positioning System receiver. The LO circuits in the locked mode consume only 36 mW of the total 115-mW receiver power, as a resul...