Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-11-13
2000-08-22
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600447, A61B 800
Patent
active
06106467&
ABSTRACT:
An apparatus for ultrasonic diagnosis uses a probe to transmit ultrasonic waves to different focusing steps and to received reflected waves from target positions for diagnosis, controlled by a transmission-reception controller which also causes sectional images to be sequentially displayed in frames on a monitor. A frame rate calculator calculates from a frame rate for forming images at each of focusing steps at a specified depth. A frame rate comparator compares the frame rate calculated by the frame rate calculator with a specified threshold value determined by the timing of display by the monitor. A focusing controller thereby serves to adjust the number of focusing steps at the specified depth according to the result of comparison by the frame rate comparator such that an optimum number of focusing steps can be selected to obtain a dependably real-time clear images can be displayed.
REFERENCES:
patent: 5301674 (1994-04-01), Erikson et al.
patent: 5318033 (1994-06-01), Savord
patent: 5379642 (1995-01-01), Reckwerrdt et al.
patent: 5797846 (1998-08-01), Seyed-Bolorforosh et al.
patent: 5995450 (1999-11-01), Cole et al.
Imam Ali M.
Lateef Marvin M.
Shimadzu Corporation
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