ARRT Formulas Exam Review 2024/2025
ARRT Formulas Exam Review 2024/2025 Equivalent Dose - ANS-Sv = Gy x WR Effective Dose - ANS-Sv = Gy x WR x WT Beam Intensity When SID Changes - ANS-I1/I2 = D2^2/D1^2 Magnification Factor - ANS-SID/SOD Penumbra - ANS-FSS x OID/SOD If SID changes, need to calculate new mAs to keep same receptor exposure: Exposure Maintenance Formula - ANS-mAs1/mAs2 = D1^2/D2^2 (old mAs/new mAs = old D1^2/ new D2^2) Pixel size formula - ANS-FOV/matrix Magnification & OID Formula - ANS-Image size/Object Size = SID/ SOD (SID-OID) mAs & Exposure Time - ANS-mAs/mA Grid conversion formula - ANS-New grid bucky/old grid bucky x mAs Image Width Formula - ANS-...
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- November 18, 2024
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- 2024/2025
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- arrt formulas
- arrt formulas exam review
- 2024
- 2025
- equivalent dose
- effective dose
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beam intensity when sid changes
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