Title:
SYSTEM AND METHOD FOR SEGMENTING MEDICAL IMAGE
Document Type and Number:
WIPO Patent Application WO/2018/014475
Kind Code:
A1
Abstract:
A method for segmenting a medical image is disclosed. The method includes acquiring MR image and PET data during a scan of the object, acquiring an air/bone ambiguous region in the MR image, the air/bone ambiguous region including air voxels and bone voxels undistinguished from each other. The method also includes assigning attenuation coefficients to the voxels of the plurality of regions and generating an attenuation map. The method further includes iteratively reconstructing the PET data and the attenuation map to generate a PET image and an estimated attenuation map. The method further includes reassigning attenuation coefficients to the voxels of the air/bone ambiguous region based on the estimated attenuation map, and distinguishing the bone voxels and air voxels in the air/bone ambiguous region.
Inventors:
ZHU WENTAO (US)
FENG TAO (US)
LI HONGDI (US)
FENG TAO (US)
LI HONGDI (US)
Application Number:
PCT/CN2016/106192
Publication Date:
January 25, 2018
Filing Date:
November 17, 2016
Export Citation:
Assignee:
SHANGHAI UNITED IMAGING HEALTHCARE CO LTD (CN)
International Classes:
G01T1/29
Foreign References:
| US20130336564A1 | 2013-12-19 | |||
| CN102124361A | 2011-07-13 | |||
| CN103908280A | 2014-07-09 | |||
| CN104700438A | 2015-06-10 | |||
| CN102265307A | 2011-11-30 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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