Apparatus for axial transverse tomography

Patent · Tue Mar 17 00:00:00 EST 1981

OSTI ID:6188560

Horiba, I; Kuwabara, Y; Satou, S; Takagi, H

An apparatus for axial transverse tomography using piercing radiation such as x-ray and gamma -ray for displaying a tomographic image concerning variation of radiation absorption values at a given section of a subject under examination, comprising: a scanner effecting a revolution-scanning around said subject at uniform angles while maintaining constant relative positions of a radiation source and a radiation detector with said subject intervening therebetween; an input device for setting a region of interest for being enlarged based on parameters of central angle, inter-center distance and radius ratio, to locally enlarge said tomographic image; co-ordinate system transforming circuitry for carrying out, on information within said region of interest outputted from radiation detector, a transformation of co-ordinate system corresponding to enlarged co-ordinates, from information obtained by the scanner and outputted by the radiation detector and also from the set parameters; and cne-by-horizontal line b chosen metal dihalide vapor is ionized by ; the total economic market potential is 64.4% of the technical potential, or 2072.4 MW, equivalent to 83,621 BPDE; and the lack of an operating history-detailing system reliability, safety, and operating costs-iment and test components; technology testing; analytmperature fatigue stren obtained.

• Assignee: Hitachi Medical Corp (Japan)
• Patent Number(s): US 4257102
• OSTI ID: 6188560
• Resource Relation: Patent Priority Date: Priority date 19 Oct 1977, Japan
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
CAT SCANNING
X-RAY EQUIPMENT
DISPLAY DEVICES
GAMMA RADIATION
IMAGE PROCESSING
X RADIATION
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
EQUIPMENT
IONIZING RADIATIONS
PROCESSING
RADIATIONS
TOMOGRAPHY
550602* - Medicine- External Radiation in Diagnostics- (1980-)