Apparatus and process for medical sensing

An apparatus for medical sensing, including:

• an acquisition component configured to access scattering data representing successive sets of measurements of electromagnetic wave scattering by internal features of a body part of a living subject, each said measurement representing scattering of electromagnetic waves emitted by a corresponding antenna of an array of antennas disposed about the body part as measured by a corresponding antenna of the array of antennas at a corresponding time, wherein the successive sets of measurements are temporally spaced apart, and wherein the scattering data comprises scattering parameters (S-parameters) acquired by a vector network analyzer (VNA);
• a spectral generation component configured to process each of the measurements to generate corresponding spectral data representing intensities measured by the corresponding antenna at the corresponding time as a function of frequency, wherein said processing by the spectral generation component includes, when the measurements are S-parameters in the frequency domain, applying an Inverse Fast Fourier transform (IFFT) to convert the S-parameters to the time domain;
• and
• a pulsatility generation component configured to process the spectral data of each antenna for successive times to generate corresponding pulsatility data representing successive blood pulsations within a corresponding spatially localized region within the body part.