Tc99m MAA dose	Xe133 dose	CT dose	Total radiation dose (mSv)	Exam duration (mins)
V/Q	5 mCi =2.035 mSv	20 mCi =0.54 mSv	NA	2.575	30-60
Perf SPECT-CT	4 mCi =1.63 mSv	NA	1.0 mSv	2.63	< 18