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Assessment on blood flow velocity using doppler technique for circulatory system diagnosis at left ventricle (LV) of the heart

S. M. Johan, Muhammad Haniff (2017) Assessment on blood flow velocity using doppler technique for circulatory system diagnosis at left ventricle (LV) of the heart. Masters thesis, Universiti Tun Hussein Onn Malaysia.


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There are many diseases that related to the left ventricle part in heart. It is because the left ventricle has important responsible for pumping oxygenated blood to tissues all over the body. By using ultrasound machine with pulse wave Doppler can determine the potential of measurement blood flow velocity in left ventricle between the normal and abnormal reading of blood flow. Various conditions may affect the left ventricle and interfere with its proper functioning. The most common are left ventricular hypertrophy, which causes enlargement and hardening of the muscle tissue that makes up the wall of the left ventricle, usually as a result of uncontrolled high blood pressure. So, by assessing the blood flow velocity in the left ventricle will help to detect between normal and abnormal reading blood flow in heart based on the parameter of early diastole. So, this project is trying to assess the parameter of early diastole, E wave (Ew), end diastole, A wave (Aw), Deceleration time (Dct). E/A ratio, E/e' (medial), E/e' (lateral) for the blood flow vector at left ventricle with the assist of the Pulsed Wave (PW) for detection of blood flow circulatory in heart. Based on the parameters that have been focused, all measurement will calculate using ultrasound cursor and tracer. The result was then analyzed based on a few categorizes (Body Mass Index, Smoker and Non-smoker, Exercise and Nonexercise, and Daily diet eating). This study show that result for the blood flow of ‘Underweight BMI’, ’Normal BMI’, ‘Non-smoker’, ‘Regular Exercise’, and ‘Healthy Diet’ have a normal velocity and the pressure filling was normal as it was normal diastolic function compared to other categorizes. Therefore, the measurement of blood flow in left ventricle is very important to detect either the blood flow is normal or abnormal for detection heart disease.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 06 Aug 2017 00:29
Last Modified: 06 Aug 2017 00:29
URI: http://eprints.uthm.edu.my/id/eprint/9207
Statistic Details: View Download Statistic

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