Region delineation in computer tomographic angiography
US7764813B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2004 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jan 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The semi-automatic extraction and delineation of the cardiac region of interest in computer tomographic angiography images is time consuming and requires an experienced operator. According to the present invention, a completely automatic delineation and extraction of the CROI is provided, wherein the chest wall is detected and the region where the CROI is attached to the chest wall. Then, the descending aorta is detected. After that a circular initialization of a closed contour around a part of the CROI is performed, which is optimized in a subsequent step. Then, a propagation is performed through all slices of the CTA image, where the preceding contour of the preceding slice image is used for an actual contour optimization in the actual slice image. Advantageously, a fully automatic delineation and extraction of the CROI is provided within very short time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.