X-ray or gamma ray systems or devices – Accessory – Testing or calibration
Patent
1997-09-12
1998-12-01
Church, Craig E.
X-ray or gamma ray systems or devices
Accessory
Testing or calibration
G01D 1800
Patent
active
058449647
ABSTRACT:
An X-ray diagnostic installation includes an X-ray source and a radiation receiver and a digital imaging processing system, the digital imaging processing system including a computer which evaluates an X-ray image of a phantom by identifying visible details in the X-ray image of the phantom. The computer employs these identified visible details to automatically construct a contrast-detail graph of the phantom. The computer thus undertakes an automatic judgment of the imaging quality, without the need for a trained observer.
REFERENCES:
"Evaluation of a Low-dose Digital X-ray System with Improved Spatial Resolution," Martinez-Davalos et al., Nuclear Instruments and Methods in Physics Research, vol. A 348 (1994) pp. 241-244 no month.
"X-ray Examination with an Improved X-ray Television Unit," Matsuda et al., Am. J. of Roentgenology, vol. 89 (1963), pp. 432-438 no month.
Aichinger Horst
Joite-Barfuss Sigrid
Schramm Helmuth
Wach Siegfried
Church Craig E.
Siemens Aktiengesellschaft
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