Radiation therapy simulation

Because of MRI’s superior imaging of soft tissues, it is now being utilized to specifically locate tumors within the body in preparation for radiation therapy treatments. For therapy simulation, a patient is placed in specific, reproducible, body position and scanned. The MRI system then computes the precise location, shape and orientation of the tumor mass, […]
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Radiation Exposure Units of Measure

Radiation Exposure Units of Measure  Energy Absorbed from γ-rays and X-rays                             Old   SI Units   Conversion Radiation absorbed dose   Rad  Gray (Gy)   1   Gy  = 100 rad                                                 1 cGy  = 1 rad Roentgen equivalent mass Rem Sievert (Sv)   1   Sv  = 100 rem  Average Annual Exposure = 360 mRem or 0.0036 Sv Chest X-Ray = 5-10 […]
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