Objective measurement of image quality in fluoroscopic X-ray equipment: FLUOROQUALITY
Tapiovaara, Markku (2003)
Tapiovaara, Markku
Säteilyturvakeskus
2003
Julkaisun pysyvä osoite on
https://urn.fi/URN:ISBN:951-712-689-1
STUK-A : 196
https://urn.fi/URN:ISBN:951-712-689-1
STUK-A : 196
Tiivistelmä
The report describes FluoroQuality, a computer program that is developed in
STUK and used for measuring the image quality in medical fluoroscopic
equipment. The method is based on the statistical decision theory (SDT) and
the main measurement result is given in terms of the accumulation rate of the
signal-to-noise ratio squared (SNR2
rate). In addition to this quantity several
other quantities are measured. These quantities include the SNR of single
image frames, the spatio-temporal noise power spectrum and the temporal lag.
The measurement method can be used, for example, for specifying the image
quality in fluoroscopic images, for optimising the image quality and dose rate in
fluoroscopy and for quality control of fluoroscopic equipment. The theory
behind the measurement method is reviewed and the measurement of the
various quantities is explained. An example of using the method for optimising
a specified fluoroscopic procedure is given. The User’s Manual of the program is
included as an appendix. The program is available free of charge for research
work and program evaluation purposes by contacting the author.
STUK and used for measuring the image quality in medical fluoroscopic
equipment. The method is based on the statistical decision theory (SDT) and
the main measurement result is given in terms of the accumulation rate of the
signal-to-noise ratio squared (SNR2
rate). In addition to this quantity several
other quantities are measured. These quantities include the SNR of single
image frames, the spatio-temporal noise power spectrum and the temporal lag.
The measurement method can be used, for example, for specifying the image
quality in fluoroscopic images, for optimising the image quality and dose rate in
fluoroscopy and for quality control of fluoroscopic equipment. The theory
behind the measurement method is reviewed and the measurement of the
various quantities is explained. An example of using the method for optimising
a specified fluoroscopic procedure is given. The User’s Manual of the program is
included as an appendix. The program is available free of charge for research
work and program evaluation purposes by contacting the author.
Kokoelmat
- STUKin omat sarjajulkaisut [2304]