Treatment Planning 2
RTOG dose constraints for total lung using standard fractionation (180-200cGy/fraction)
- answerV20=37%
RTOG dose constraints for esophagus using standard fractionation
(180-200cGy/fraction) - answer Mean Dose=34 Gy
RTOG dose constraints for spinal cord using standard fractionation
(180-200cGy/fraction) - answerMax Dose=45 Gy
RTOG dose constraints for brachial plexus using standard fractionation
(180-200cGy/fraction) - answerTD 5/5 </= 60 Gy
RTOG dose constraints for heart using standard fractionation (180-200cGy/fraction) -
answer60 Gy < 33%
(T/F) When treating the lung, isocenter should be placed in the center of the GTV when
possible. - answerTrue
(T/F) When treating the lung, 6x energy should be avoided due to increased scatter. -
answerFalse
(T/F) The right lung is made up of 3 lobes - answerTrue
(T/F) The trachea bifurcates at the level of T7. - answerFalse
(T/F) Non small cell carcinoma has a higher probability of spread vs small cell
carcinoma. - answerFalse
(T/F) The units for a voxel are cm x cm. - answerFalse
(T/F) The units for a pixel are cm x cm x cm. - answerFalse
(T/F) Magnification follows an inverse square relationship. - answerFalse
(T/F) The time to transfer an image set is dependent on pixel size. - answerTrue
The dose rate at 5 meters from a linac is what compared to isocenter? - answer1/25
RTOG dose constraints for total lung using standard fractionation (180-200cGy/fraction)
- answerV20=37%
RTOG dose constraints for esophagus using standard fractionation
(180-200cGy/fraction) - answer Mean Dose=34 Gy
RTOG dose constraints for spinal cord using standard fractionation
(180-200cGy/fraction) - answerMax Dose=45 Gy
RTOG dose constraints for brachial plexus using standard fractionation
(180-200cGy/fraction) - answerTD 5/5 </= 60 Gy
RTOG dose constraints for heart using standard fractionation (180-200cGy/fraction) -
answer60 Gy < 33%
(T/F) When treating the lung, isocenter should be placed in the center of the GTV when
possible. - answerTrue
(T/F) When treating the lung, 6x energy should be avoided due to increased scatter. -
answerFalse
(T/F) The right lung is made up of 3 lobes - answerTrue
(T/F) The trachea bifurcates at the level of T7. - answerFalse
(T/F) Non small cell carcinoma has a higher probability of spread vs small cell
carcinoma. - answerFalse
(T/F) The units for a voxel are cm x cm. - answerFalse
(T/F) The units for a pixel are cm x cm x cm. - answerFalse
(T/F) Magnification follows an inverse square relationship. - answerFalse
(T/F) The time to transfer an image set is dependent on pixel size. - answerTrue
The dose rate at 5 meters from a linac is what compared to isocenter? - answer1/25
