Intracardiac phonocardiography: intracardiac sound and pressure in man.
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چکیده
منابع مشابه
Intracardiac phonocardiography in man.
This paper describes a new method for the detection of sound from within the heart in man. It employs the technic and equipment of underwater listening developed and use(l by the Navy in antisubmarine warfare. Records are shown to illustrate the localization of heart sound production to an extent not possible by phonocardiograms from the chest wall. The technic has proved helpful in the evaluat...
متن کاملPresent status of intracardiac phonocardiography.
T HE most important aspect of our studies has been the observation that this technic, using the underwater barium titanate microphone, p)rovidei an exact localization of the production of heart sounds and murmurs. Figure 1 illustrates the iiormal intracardiac phonocardiogrami from the various chambers of the heart and from the great vessels. Several points may be made: 1. Comparison of similar ...
متن کاملPhonoechocardiography and intracardiac phonocardiography in hypertrophic cardiomyopathy.
The salient phonoechocardiographic features of patients having hypertrophic cardiomyopathy (HCM) with or without left ventricular outflow tract (LVOT) gradients are reviewed. Intracardiac sound and pressure recordings from high fidelity catheter-tipped micromanometers have documented that the precordial murmur is the summation of both the systolic ejection murmur (SEM) arising from the LVOT, as...
متن کاملIntracardiac phonocardiography in ventricular septal defect.
It has been demonstrated that intracardiac phonocardiography provides precise localization of the source of cardiovascular sounds. Can this technic be of practical help in the diagnosis of small or complicated ventricular septal defects? Is a ventricular septal1 defect ever silent? What mechanisiims are responsible for the diastolic mlurmlurs in ventricular septal defect? In an attempt to answe...
متن کاملIntracardiac Phonocardiography in Ventricular Septal Defect
It has been demonstrated that intracardiac phonocardiography provides precise localization of the source of cardiovascular sounds. Can this technic be of practical help in the diagnosis of small or complicated ventricular septal defects? Is a ventricular septal1 defect ever silent? What mechanisiims are responsible for the diastolic mlurmlurs in ventricular septal defect? In an attempt to answe...
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ژورنال
عنوان ژورنال: Circulation
سال: 1978
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.57.6.1039