EP 1716535 A2 20061102 - VIRTUAL ENDOSCOPY METHODS AND SYSTEMS
Title (en)
VIRTUAL ENDOSCOPY METHODS AND SYSTEMS
Title (de)
VERFAHREN UND SYSTEME ZUR VIRTUELLEN ENDOSKOPIE
Title (fr)
PROCEDES ET SYSTEMES D'ENDOSCOPIE VIRTUELLE
Publication
Application
Priority
- US 2004033888 W 20041012
- US 51023703 P 20031010
Abstract (en)
[origin: WO2005036457A2] Imaging systems and methods for processing and rendering volumetric images of a selected organ for virtual endoscopy applications are provided, which enable visualization and navigation of the imaged organ from within a lumen/cavity of the organ. For example, methods are provided for preparing 3D volumetric images of colons for virtual endoscopy application which do not require administration of oral laxatives or suppositories for patient bowel preparation. In particular, an imaging method which can be implemented for virtual colonoscopy applications, includes a process of obtaining an image dataset comprising image data of a colon (step 11) that is prepared (step 10) to tag regions of colonic residue in a manner that enhances a contrast between tagged regions of colonic residue in a lumen of the colon and a colon wall; segmenting (step 12) a region of interest in the image dataset, the region of interest comprising the colon lumen, the colon wall, and regions of tagged residue in the colon lumen; electronically cleaning (step 13) the tagged residue in the colon lumen using a gradient feature data obtained from the image dataset using a maximum directional gradient feature analysis; and rendering (step 14) a volumetric image comprising an endoluminal view at a region within the imaged colon.
IPC 8 full level
G06T 1/00 (2006.01)
IPC 8 main group level
G06T (2006.01)
CPC (source: EP)
G06T 7/12 (2016.12); G06T 2207/10081 (2013.01); G06T 2207/20132 (2013.01); G06T 2207/30032 (2013.01)
Citation (search report)
See references of WO 2005036457A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL HR LT LV MK
DOCDB simple family (publication)
WO 2005036457 A2 20050421; WO 2005036457 A3 20081120; EP 1716535 A2 20061102
DOCDB simple family (application)
US 2004033888 W 20041012; EP 04795095 A 20041012