Cardiac gating for dual-energy imaging

Details Cardiac gating for dual-energy imaging Cardiac gating for dual-energy imaging

2007-12-06

2009-11-24

Kao, Chih-Cheng G (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

Object responsive control

Reexamination Certificate

active

07623628

ABSTRACT:
Methods are provided for cardiac gating of multiple-energy projection radiographic imaging utilizing an apparatus that measures the patient's peripheral blood perfusion. The choice of methods is dependant on the patient's heart rate and the delays inherent in the imaging system. A first method allows for imaging during the diastole period of the current cardiac cycle. A second method provides an implemented delay to acquire the image during the diastole period of a subsequent cardiac cycle. The use of the apparatus that measures the patient's peripheral blood perfusion allows for an efficient and convenient means of cardiac gating while avoiding occlusion of diagnostically important anatomy.

REFERENCES:
patent: 6154516 (2000-11-01), Heuscher et al.
patent: 6816572 (2004-11-01), Jabri et al.
Siewerdsen et al., “High-Performance Dual-Energy Imaging with a Flat-Panel Detector: Imaging Physics from Blackboard to Benchtop to Bedside,” Medical Imaging 2006: Physics of Medical Imaging, Proceedings of the SPIE, vol. 6142, (Mar. 2006), pp. 489-498.

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