A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
349/36
A61B 10/00 (2006.01) A61B 8/00 (2006.01) G01N 29/06 (2006.01) G01S 7/52 (2006.01) G01S 15/89 (2006.01)
Patent
CA 1099382
ABSTRACT In an improved system for medical imaging employing a transducer for transmitting and detecting ultrasonic vibrations, a digital scan converter accepts echo signals detected by the transducer and transducer position signals identifying the point of origin of the signals in a scanning plane transversely oriented rela- tive to the body of the patient under study. The ampli- tudes of the echoes detected are stored at memory loca- tions associated with the points of origin of the echoes. Peak detection analysis is performed on large echoes emanating from higher impedance tissue interfaces within the scanning plane, while cumulation and normalization analysis is performed on small echoes emanating from low impedance tissue interfaces within the scanning plane. Sensitivity to otherwise unobtainable image details, signal to noise ratio, and freedom from distortions is maximized, yet the improved system may be used both in the static and real time imaging modes.
283922
Osler Hoskin & Harcourt Llp
Searle (g. D.) & Co.
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