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SU‐FF‐I‐112: Evaluation of Dose Saving Utilizing AGFA's DirectiX Neddle Based Detector
Author(s) -
Howley J,
Seddon M,
Donohoe A
Publication year - 2007
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2760489
Subject(s) - imaging phantom , image quality , detector , nuclear medicine , optics , radiography , computed radiography , dosimetry , digital radiography , reduction (mathematics) , biomedical engineering , physics , medicine , computer science , artificial intelligence , mathematics , image (mathematics) , radiology , geometry
Purpose: To evaluate the impact of dose reduction on image quality utilizing AGFA's new DirectriX needle‐based detector and scanhead technology versus AGFA's MD 4.0 PSP detector and Compact plus ADC. Method and Materials: The ACR R/F phantom was utilized for image quality evaluations. The phantom was imaged using manual techniques on both the DirectriX needle‐based detector system and the MD 4.0 PSP system. The same GE Proteus XR/a x‐ray system was utilized for all exposures. The image quality was quantified based on human observation of the copper mesh resolution patterns, contrast detail pattern and aluminum contrast holes. A total of 5 observers accessed and scored the phantom images. Phantom images were obtained on multiple plates and the results were averaged for the observers Results: Evaluation of the phantom scores indicates that comparable image quality can be achieved at a 60% decrease in dose. Evaluation of the phantom scores also indicates image quality gains if dose levels are held constant. Conclusion: This work indicates the potential for significant dose reduction for general radiography utilizing the DirectriX needle‐based detector. The works also indicates a potential for significant image quality gains if dose rates are kept constant.