Electrical and Electronics Commons^™

Clinical Near-Infrared Spectroscopy Instrumentation: Postural Orthostatic Tachycardia Syndrome Studies, Parvathi Kadamati

Theses and Dissertations

ABSTRACT

CLINICAL NEAR-INFRARED SPECTROSCOPY INSTRUMENTATION: POSTURAL ORTHOSTATIC TACHYCARDIA SYNDROME STUDIES

by

Parvathi Kadamati

The University of Wisconsin-Milwaukee, 2017

Under the Supervision of Professor Mahsa Ranji

Aims: Postural orthostatic tachycardia syndrome (POTS) is a type of chronic orthostatic intolerance, annually affecting around 500,000 young Americans. Symptoms of POTS include lightheadedness and persistent increase in heart rate with upright body posture [1-3]. It requires a medical diagnosis. Impaired cerebral oxygenation of patients with POTS has been reported [4]. The pathophysiology remains unclear, and research is needed to understand the underlying conditions that lead to POTS. The aim of this research is to …

Assessment Of Electrode Configurations Of Electrical Impedance Myography For The Evaluation Of Neuromuscular Diseases, Khondokar Mohammad Fazle Rabbi

Electronic Theses and Dissertations

Electrical impedance myography (EIM) is a painless, noninvasive approach to measure the neuromuscular disease status. EIM parameters- resistance (R), reactance (X) and phase (θ) depend significantly on subcutaneous fat thickness, muscle size and inter electrode distance. The objective of this research is to find an electrode configuration which can minimize the effects on EIM parameters due to subcutaneous fat thickness variation. In this study, a model of human upper arm was developed using finite element method (FEM), which has already been established as an appropriate approach for the analysis of non-symmetrical shape for assessing alternations of muscle in disease-induced changes …