Biomaterial Database

Pulsed Doppler echocardiography: principles and applications. 1977

D W Baker, and S A Rubenstein, and G S Lorch

A new recording and display system is described for use with pulsed Doppler blood flow velocity detectors in the diagnosis of valvular and septal defects. The principles of the pulsed Doppler device are described along with the methods used to analyze and display the Doppler shifted signal from flow jets resulting from various valve defects. An M-mode display is combined with blood flow display to provide a convenient record of the clinical procedure. Examples of aortic stenosis, aortic insufficiency, mitral stenosis and regurgitation are presented along with signals from other valves.

UI	MeSH Term	Description	Entries
D008944	Mitral Valve Insufficiency	Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.	Mitral Incompetence,Mitral Regurgitation,Mitral Valve Incompetence,Mitral Insufficiency,Mitral Valve Regurgitation,Incompetence, Mitral,Incompetence, Mitral Valve,Insufficiency, Mitral,Insufficiency, Mitral Valve,Regurgitation, Mitral,Regurgitation, Mitral Valve,Valve Incompetence, Mitral,Valve Insufficiency, Mitral,Valve Regurgitation, Mitral
D008946	Mitral Valve Stenosis	Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.	Mitral Stenosis,Mitral Stenoses,Mitral Valve Stenoses,Stenoses, Mitral,Stenoses, Mitral Valve,Stenosis, Mitral,Stenosis, Mitral Valve,Valve Stenoses, Mitral,Valve Stenosis, Mitral
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D004452	Echocardiography	Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.	Echocardiography, Contrast,Echocardiography, Cross-Sectional,Echocardiography, M-Mode,Echocardiography, Transthoracic,Echocardiography, Two-Dimensional,Transthoracic Echocardiography,2-D Echocardiography,2D Echocardiography,Contrast Echocardiography,Cross-Sectional Echocardiography,Echocardiography, 2-D,Echocardiography, 2D,M-Mode Echocardiography,Two-Dimensional Echocardiography,2 D Echocardiography,Cross Sectional Echocardiography,Echocardiography, 2 D,Echocardiography, Cross Sectional,Echocardiography, M Mode,Echocardiography, Two Dimensional,M Mode Echocardiography,Two Dimensional Echocardiography
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001022	Aortic Valve Insufficiency	Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).	Aortic Incompetence,Aortic Regurgitation,Aortic Valve Incompetence,Regurgitation, Aortic Valve,Incompetence, Aortic,Incompetence, Aortic Valve,Insufficiency, Aortic Valve,Regurgitation, Aortic
D001024	Aortic Valve Stenosis	A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.	Aortic Stenosis,Aortic Valve Stenoses,Stenoses, Aortic,Stenoses, Aortic Valve,Stenosis, Aortic,Stenosis, Aortic Valve,Valve Stenoses, Aortic,Valve Stenosis, Aortic
D014465	Ultrasonics	A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues.	Ultrasonic