Expert system for thyroid function test using fuzzy theory

Abstract

This an expert system for thyroid function test using fuzzy theory. The investigations about a given patients start from the laboratory tests (TSH, FreeT4, FreeT3). The final result of investigations consists of the assesment of the thyroid function in terms of three aspects (hormone level, non thyroid illness, inappropriateness), each of which is assigned a linguistlic value describing its impairment degree.