A CMOS blood cancer detection sensor based on frequency deviation detection

This paper proposes a technique to detect Leukaemia (blood cancer) based on the frequency modulation of a relaxation oscillator by changes in the dielectric constant of blood cells. A novel 16-bit frequency detector with a digital output has been proposed to detect the frequency difference between two oscillators based on healthy blood and Leukaemic blood. A circuit has been designed, to operate on a 1.2V supply, post layout simulations shows 0.35mA current consumption. The chip Area including pads~0.6mm∗0.45m

Electrical Impedance Tomography for high speed chest imaging

Electrical Impedance Tomography (EIT) is a method for imaging the internal conductivity distribution of a cross section of human body using known injected currents and measured potentials on the surface. The problem of recovering the internal conductivity from this data is extremely ill-conditioned and, by contrast to many other medical imaging techniques, nonlinear. Inevitably EIT images will be low in spatial resolution but the technique promises high temporal resolution, continuous monitoring, relatively low cost and the possibility that soft tissue changes may be imaged which are invisible to other imaging techniques

Chest Impedance Imaging Using Trigonometric Current Patterns

This paper reports the results from the application of the 32 channel Oxford Brookes Adaptve Current Tomograph, OXBACT-III to the chest of a human volunteer. A frame rate of 10 per second was achieved using trigonometric drive currents