Radiation image photographic apparatus

Patent · Mon Nov 26 23:00:00 EST 1984

OSTI ID:5952149

Kohno, H; Sekihara, K; Shiono, H; Suzuki, T; Yanaka, S

A radiation-image photographing apparatus comprises a radiation source, a radiation detector disposed in opposition to the radiation source for detecting radiation through an object to be examined and to generate an electrical signal proportional to the amount of incident radiation, a scanning device for changing the relative, positional relationship between the radiation source and the radiation detector, an analog-to-digital converter for converting the output signal from the radiation detector to a digital quantity, a memory for storing the digital signal, an arithmetic unit, and a display unit. A plurality of measurements of a two-dimensional radiation absorption distribution of the object disposed between the radiation source and the radiation detector is obtained while the relative positional relationship between the radiation source and the radiation detector is being changed, and a linear arithmetic operation is performed on the plurality of image measurements, or a set of data passing a point within the object to be photographed, thereby displaying a cross-sectional image on a given cross-section approximately parallel to the radiation detector plane within the object to be examined.

• Assignee: Hilachi Medical Corporation (Japan)
• Patent Number(s): US 4485480
• OSTI ID: 5952149
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANALOG-TO-DIGITAL CONVERTERS
BIOMEDICAL RADIOGRAPHY
DESIGN
DIAGNOSTIC TECHNIQUES
DISPLAY DEVICES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
IMAGE INTENSIFIERS
IMAGE SCANNERS
IMAGES
IONIZING RADIATIONS
MEASURING INSTRUMENTS
MEDICINE
MEMORY DEVICES
NUCLEAR MEDICINE
PHOTOGRAPHY
RADIATION DETECTORS
RADIATION SOURCES
RADIATIONS
RADIOLOGY
X RADIATION
X-RAY EQUIPMENT
X-RAY SOURCES