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DR Factor Chart

p83 workbook

QuestionAnswer
What effect does OID have on receptor exposure? INVERSE - more OID decreases receptor exposure
What effect does SID have on receptor exposure? INVERSE - more SID decreases receptor exposure
What factors affect DISTORTION? SID, OID, CR Angle, Patient Thickness
What factors affect SPATIAL RESOLUTION? OID, SID, FSS, Patient Thickness, Motion, CR angle
What is the controlling factor for CONTRAST? kVp
What is the controlling factor for receptor exposure? mAs
What factor affects BRIGHTNESS? NONE - brightness is a quality of the monitor
What factors affect CONTRAST? kVp, OID, Grid, Beam Restriction, Field Size, Patient Thickness, Filtration
What factors affect RECEPTOR EXPOSURE? mAs, kVp, OID, SID, Grid, Beam restriction, Field Size, Patient Thickness, Filtration, CR angle,
What does FSS affect? only SPATIAL RESOLUTION
How does increasing patient thickness affect DR factors? DECREASES Receptor exposure, DECREASES contrast, DECREASES spatial resolution, INCREASES distortion
Which factors does motion affect? DECREASES spatial resolution
What factors does increasing filtration affect? DECREASES Receptor exposure, DECREASES contrast
What factors does increasing CR angle affect? DECREASES Receptor exposure, DECREASES spatial resolution, INCREASES distortion
Which factors can the tech use to decrease distortion? DECREASE OID, INCREASE SID, DECREASE patient thickness, DECREASE CR angle
Which factors can the tech use to increase spatial resolution? DECREASE OID, INCREASE SID, DECREASE FSS, DECREASE patient thickness, DECREASE patient motion, DECREASE CR angle
Which factors can the tech use to decrease contrast? INCREASE kVp, DECREASE OID, DECREASE grid ratio, DECREASE beam restriction, INCREASE field size, INCREASE patient thickness, INCREASE filtration
What factors can the tech use to decrease brightness? NONE - brightness is a quality of the monitor.
Which factors affect visibility? Brightness and spatial resolution
Which factor is the primary controller of Receptor exposure? mAs
Which factor controls contrast? kVp
To increase Receptor exposure, the tech can change which factors? Name all and how to apply them. INCREASE mAS, INCREASE kVp, DECREASE OID, DECREASE SID, DECREASE grid ratio, DECREASE beam restriction, INCREASE field size, DECREASE patient thickness, DECREASE CR angle, DECREASE filtration,
Created by: Larobbins