Patent · US Expired

Medical examination installation with improved image contrast

US4913154A · kind A · utility

38Cited by

7References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Helmut Ermert · Simmerath, DE
Manfred Pfeiler · Erlangen, DE
Karl Barth · Hochspeyer, DE

Key dates

Filing date	Sep 26, 1988
Grant date	Apr 3, 1990
Priority date	—
Expiry date	Sep 26, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/3205
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A medical installation for examining a patient irradiates at least a portion of the patient with an examination field, and detects the attenuated field and generates an image therefrom. During exposure of the patient to the examination field, a contrast agent injector is operated to intermittently inject contrast agent into the patient at a selected frequency. The image is generated of the patient at an image pick-up frequency, and the frequency of injection of the contrast agent may be matched to, or differ from, the image pick-up frequency. The liquid injected into the patient will have alternating sections with and without contrast agent following in succession.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.