Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-04-01
1999-11-09
Manuel, George
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600458, A61B 300
Patent
active
059804602
ABSTRACT:
Temporal variations in backscatter from an ultrasound contrast agent located in the vascular system and induced by movement of the scatterers are used to visualize the presence of contrast agent by determining areas where correlation between successive ultrasound images is poor. This low level of correlation from intravascular contrast agent movement permits distinction between stationary bulk tissue and moving bulk tissue since movement of the latter solid tissue scatterers is correlated.
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Shung et al., 1990 Ultrasonics Symposium, 3: 1545-1548 (1990).
.O slashed.stensen Jonny
Dyrstad Knut
Eriksen Morten
Frigstad Sigmund
Hoff Lars
Manuel George
Nycomed Imaging AS
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