EP 0829068 A1 19980318 - AUTOMATIC BORDER DELINEATION AND DIMENSIONING OF REGIONS USING CONTRAST ENHANCED IMAGING
Title (en)
AUTOMATIC BORDER DELINEATION AND DIMENSIONING OF REGIONS USING CONTRAST ENHANCED IMAGING
Title (de)
AUTOMATISCHE RANDZEICHNUNG UND BEMESSUNG VON BILDBEREICHEN MIT VERWENDUNG EINERKONTRASTERHÖHTEN BILDFORMUNG
Title (fr)
PROCEDE AUTOMATIQUE DE DELINEATION DES LIMITES ET DE DIMENSIONNEMENT DES REGIONS PAR IMAGERIE A ACCENTUATION DE CONTRASTES
Publication
Application
Priority
- US 9608257 W 19960530
- US 45583595 A 19950531
Abstract (en)
[origin: WO9638815A1] The present invention is a novel system and method for automatically identifying borders of regions of interest within an image of a patient's organ or tissue. The system generates images - before, during and after the administration of a contrast agent. Once the set of images have been taken, the system begins automatic processing of the images. The steps of the processing include the identification of baseline image frames, identification of baseline intensities for each given pixel in the ROI, baseline subtraction on a per-pixel basis, determining a probability of signal-to-noise ratio for each pixel, and thresholding each pixel to determine if a pixel belongs to an area inside the border region or an area outside the border region. To exactly determine which pixels that are at the border, the method refines the set by locally minimizing a total cost function that relates a low value to points typically found on a contrast enhanced image. The border of the region of interest is thereby determined.
IPC 1-7
IPC 8 full level
A61B 6/03 (2006.01); A61B 5/055 (2006.01); A61B 8/00 (2006.01); G06T 1/00 (2006.01); G06T 5/00 (2006.01); G06V 10/28 (2022.01)
CPC (source: EP US)
G06T 7/12 (2016.12 - EP US); G06V 10/28 (2022.01 - EP US); G06T 2207/10132 (2013.01 - EP); G06T 2207/20104 (2013.01 - EP); G06T 2207/30048 (2013.01 - EP)
Citation (search report)
See references of WO 9638815A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9638815 A1 19961205; AU 5962996 A 19961218; CA 2220177 A1 19961205; EP 0829068 A1 19980318; JP H11506950 A 19990622
DOCDB simple family (application)
US 9608257 W 19960530; AU 5962996 A 19960530; CA 2220177 A 19960530; EP 96916909 A 19960530; JP 53674696 A 19960530