Ultrasound imaging system with improved scan conversion
US4058001A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1976 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Aug 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52028
- WIPO fieldMeasurement
- WIPO sectorInstruments
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 relative to the body of the patient under study. The amplitudes of the echoes detected are stored at memory locations 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
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.