METHOD FOR DETECTION AND VISIONAL ENHANCEMENT OF BLOOD VESSELS AND PULMONARY EMBOLI
摘要
A method for detecting a substantially cylindrical internal structures and dark structures surrounded by bright intensity values (contrast) in a medical image includes acquiring a medical image (22). A gradient of the medical image (22) is calculated. Local shape index information for the calculated gradient of the medical image is calculated. Gradient information in areas having a local shape index not indicative of ridge and rut shapes is removed. Diverging gradient field responses (DGFR) are calculated based on the remaining gradient information. The DGFR responses and relative amount of DGFR responses for the rut and ridge areas is used as a discriminative feature in detecting the substantially cylindrical internal structure as well as darker occluding structures within cylindrical structures such as Pulmonary Emboli.
申请公布号
WO2008024359(A3)
申请公布日期
2008.05.22
申请号
WO2007US18502
申请日期
2007.08.21
申请人
SIEMENS MEDICAL SOLUTIONS USA, INC.;PERIASWAMY, SENTHIL;SALGANICOFF, MARCOS