Methods and apparatus for scout-based cardiac calcification...

Details Methods and apparatus for scout-based cardiac calcification... Methods and apparatus for scout-based cardiac calcification...

2003-07-03

2008-12-16

Kao, Chih-Cheng G (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

C378S008000, C378S095000

Reissue Patent

active

RE040607

ABSTRACT:
In one aspect, the present invention is a method for producing CT images of a patient's heart suitable for calcification scoring, in which the heart has a cardiac cycle. The method includes steps of acquiring data representative of a first scout-scanned CT image of physical locations of the patient's body including at least a portion of the patient's heart at phases φ1(L) of the cardiac cycle, acquiring data representative of a second scout-scanned CT image of the physical locations of the patient's body including at least a portion of the patient's heart at phases φ2(L) of the cardiac cycle different from φ1(L) at physical positions L of interest, and determining a difference image from the acquired data representative of the first scout-scanned CT image and the acquired data representative of the second scout-scanned CT image data. It is not necessary that φ1(L) and φ2(L) be constant as a function of position L.

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