In the Department of Biomedical Engineering, the master's student Qabs Tariq Abdul Kareem defended her thesis titled:

"Haemodynamic Analysis Of Prosthetic Aortic Mechanical Valve"

And the examining committee was chaired by Assistant Professor Dr. Sadiq Jaafar Abbas from the Department of Biomedical Engineering, with membership from Assistant Professor Dr. Mudar Hussain Al-Attar from Ibn Al-Bitar Specialized Center for Cardiac Surgery, and Assistant Professor Dr. Hadeel Qasim Wadi from the Department of Biomedical Engineering at the College of Engineering, University of Al-Nahrain.

The thesis was supervised by Dr. Samar Ali Jaber from the Department of Biomedical Engineering, College of Engineering, University of Al-Nahrain, and Dr. Ahmed Abdul Raouf Ammar from Ibn Al-Bitar Specialized Center for Cardiac Surgery. The scientific review was conducted by the first scientific reviewer, Assistant Professor Dr. Asmaa Abbas Ajood from the College of Medicine, University of Diyala, and the second scientific reviewer, Assistant Professor Dr. Hussam Kazem Abdul Amir from the Department of Biomedical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad. The linguistic review was conducted by Dr. Mustafa Mona Karim from the Department of Biomedical Engineering, College of Engineering, University of Al-Nahrain.

The aim of the thesis was to study and analyze the efficiency of the prosthetic aortic valve (SJM) using ultrasound technology with Doppler technique to determine the pressure exerted on the valve and the blood flow velocity as factors for analyzing the efficiency of the valve for blood flow to other parts of the body. The results were compared with mathematical analysis using the continuity equation, and then the suitability of this criterion as an evaluation of valve function was assessed. Ultrasound was performed receptively on 112 patients during one month and also six months after valve replacement surgery. Through this, the "true hemodynamic status" was clarified after using the artificial aortic valve of the SJM Regent type with different sizes from 17 to 27. It was concluded that the different measurements were appropriate except for valve size 17, which showed different mechanical results after six months of replacement surgery. The thesis was accepted as meeting the requirements for the master's degree.