X-ray diagnostic system for angiographic radiographs

Patent · Tue Oct 16 00:00:00 EDT 1984

OSTI ID:5838466

Baumann, H; Gerlach, H J

An exemplary embodiment comprises a patient support, an x-ray tube supplied by an x-ray generator, an x-ray image intensifier with a series connected television chain, a control loop for contrast medium injection, and a program memory for storing several radiographic exposure programs. A time measuring device is present which is started by the syringe and is stopped by an evaluation unit when the mean image brightness varies to a predetermined extent. A computer calculates the contrast medium velocity from the measured time and the distance (X) between the injection location and the measuring location. On the basis of the calculated contrast medium velocity, an optimum program calculation, or program selection, respectively, is possible.

• Assignee: Siemens Aktiengesellschaft (Germany, Federal Republic Of)
• Patent Number(s): US 4477923
• OSTI ID: 5838466
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
BODY
BRIGHTNESS
CARDIOVASCULAR SYSTEM
COMPUTER CALCULATIONS
COMPUTER CODES
CONTROL
DIAGNOSTIC TECHNIQUES
EQUIPMENT
IMAGE INTENSIFIERS
IMAGE PROCESSING
IMAGES
MEASURING INSTRUMENTS
MEDICINE
MEMORY DEVICES
NUCLEAR MEDICINE
OPTICAL PROPERTIES
ORGANS
PATIENTS
PHYSICAL PROPERTIES
PROCESSING
RADIATION SOURCES
RADIOLOGY
TELEVISION
TIME MEASUREMENT
VELOCITY
X-RAY EQUIPMENT
X-RAY SOURCES