Radiometric Analysis of Ankle Edema via RZF Antenna for Biomedical Applications

In this paper, diabetic measure via non-invasive technique form the peripheral edema is proposed. The peripheral edema arises in the diabetic person in the ankle with thick skin formation in the joints with stiffness and change in skin tone. However, the existing clinical systems measure the circumstance or size of the edema and the flow rate of the fluid. The blood circulation is still a challenge in the assessment of the edema. The proposed method identifies the fluid and the blood circulation in the edema and predicts the diabetic value through the rectangular zig fractional (RZF) antenna. The RZF antenna laid over the edema surface and figure pressure applied over the antenna. RZF antenna sensor acquires electromagnetic radiation of fluid. The antenna works as a radiometer and measures the voltage according to the circulation of the fluid or blood, and tabulated for the diabetic value measurement. From the dataset of 50 people with edema shows the relation between the skin blood flow and edema. Furthermore, the diabetic value from the edema show an accuracy of about 85%, when compare with the laboratory value.

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