06718055 is referenced by 57 patents.

A medical imaging system includes an imaging device for producing temporally spaced image representations, a memory for storing the image representations, and a processor. The processor aligns the image representations by iteratively deriving a transform between progressively smaller sub-sets of pixels in temporally adjacent images until the sub-sets converge, and, applies the transform to the temporally adjacent images. The processor further sorts selected pixels in a region of interest spatially within each of the image representations for further processing by classifying pixels in the images according to a characteristic indicative of an absorption rate of the contrast agent. The processor further establishes correspondence between the selected pixels over successive image representations by generating masks for a particular classification of pixels, based on the generated masks, computing textural properties of the particular classification of pixels across the temporally spaced images, and computing co-occurrence matrices between successive image representations based on the textural properties. The processor further determines and displays a curve indicative the contrast agent in the selected pixels over time.

Title
Temporal and spatial correction for perfusion quantification system
Application Number
9/730355
Publication Number
6718055 (B1)
Application Date
December 5, 2000
Publication Date
April 6, 2004
Inventor
Jasjit S Suri
Mayfield Heights
OH, US
Agent
Fay Sharpe Fagan Minnich & McKee
US
Assignee
Koninklijke Philips Electronics
US
IPC
G06K 9/00
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