发明名称 |
ULTRASOUND IMAGING SYSTEM WITH A HIGH LATERAL RESOLUTION |
摘要 |
The invention relates to an ultrasound imaging system for forming an echographic image of a medium, which system includes a set [REC] of transducer elements [EL] which are operative in a transmission mode and in a reception mode for ultrasound waves, construction means [REB] for constructing echographic signals on the basis of signals [S[1] ... S[N]] received on said transducer elements [EL], display means [DIS] which are coupled to said construction means [REB] in order to display an image of the medium formed by means of the echographic signals. Said construction means [REB] are such that in so-called exclusion zones, in which a coherent reflector is detected and which are determined by determination means [DET], the reception delays [D] are estimated in a manner [INT] other than that [CORR] used for the other zones. The calculation [CAL] of echographic signals is then carried out on the basis of said estimated delays [D[Z],Di[Z]]. The invention enables a correction of phase aberrations and nevertheless offers an excellent lateral resolution, notably in the case of point coherent reflectors.
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申请公布号 |
WO03093862(A1) |
申请公布日期 |
2003.11.13 |
申请号 |
WO2003IB01587 |
申请日期 |
2003.04.22 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;LEVRIER, CLAIRE;COHEN-BACRIE, CLAUDE;VILLAIN, NICOLAS;LAGRANGE, JEAN-MICHEL;ENTREKIN, ROBERT |
发明人 |
LEVRIER, CLAIRE;COHEN-BACRIE, CLAUDE;VILLAIN, NICOLAS;LAGRANGE, JEAN-MICHEL;ENTREKIN, ROBERT |
分类号 |
A61B8/00;G01S7/52;G01S15/89;(IPC1-7):G01S7/52 |
主分类号 |
A61B8/00 |
代理机构 |
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