Method and apparatus for monitoring cardiac activity

Details Method and apparatus for monitoring cardiac activity Method and apparatus for monitoring cardiac activity

2005-04-26

2008-10-21

Winakur, Eric F (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S436000, C600S508000, C382S128000, C378S062000

Reexamination Certificate

active

07440790

ABSTRACT:
A method and apparatus for monitoring cardiac activity starting from a series of images of the heart made by X-rays. Attenuation of the X-rays is sampled on an area subject to repetitive thickenings of at least one wall of the heart, and a repetitive attenuation signal is interpreted as a signal representative of the heart activity.

REFERENCES:
patent: 4360030 (1982-11-01), Citron et al.
patent: 7020511 (2006-03-01), Boyd et al.
patent: 7092482 (2006-08-01), Besson
patent: 2005/0002549 (2005-01-01), Vaillant et al.
patent: 2 848 093 (2004-06-01), None
patent: 2000/225115 (2000-08-01), None
patent: WO 01/67960 (2001-09-01), None
patent: WO 02/26125 (2002-04-01), None

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