Lungs Fluid Accumulation Detection Using Microwave Imaging Technique

The accumulation of fluid in the lungs is known as pulmonary oedema. The excess fluid that is trapped in the organs of body tissues cause swelling and this is known as Oedema. A model is designed in this research that detects the existence of fluid in the lungs. A wideband antenna beam is used for transmission and reception of the signals, which are then further processed using signal processing techniques to detect the fluid accumulation in the lungs. Detection of fluid can be achieved by detecting the change in the amplitude of transmitted and received signals, detecting phase change of the signals, or using a digital processing technique on the received spectrum or else. But these are either sensitive to the environment and positioning of the setup, or very sensitive to phase change. In this research, scattering profile is processed to detect fluid accumulation in the lungs.