Tracking region-of-interest in nuclear medical imaging and...

Details Tracking region-of-interest in nuclear medical imaging and... Tracking region-of-interest in nuclear medical imaging and...

2007-05-02

2008-12-16

Hannaher, Constantine (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

Reexamination Certificate

active

07465929

ABSTRACT:
A method and system for automatically identifying and tracking a ROI over all planar acquisition view angles of a nuclear imaging system, such as a gamma camera used for SPECT or planar imaging. Temporal intensity variation in emission projection imaging is measured to identify a region of interest (ROI) such as the myocardium. The method automatically tracks the location of the ROI over different planar view angles and adapts detector head orbit and positioning to bring the ROI within a predefined preferred area or so-called “sweet spot” within the FOV of a collimator attached to the front of a scintillation detector surface. After initial positioning of the detector head by the user, the system automatically tracks the ROI location as the detector head(s) rotate about the patient and re-position the detector head(s) appropriately to maintain the ROI within the optimal collimation area of the detector FOV.

REFERENCES:
patent: 5304806 (1994-04-01), Hines et al.
patent: 6147353 (2000-11-01), Gagnon et al.

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