    Sentence 1: What.is the difference between an  IVP and-a.CT'scan? What about between a-non-  contrast CT scan and a contrast CT scan? What  are the pros and cans.of each?    Sentence. 2: Can’ someone _ please  professional opinion on this’ attachment  an MRI/CT.SCAN: OR XRAY? And what is:the  Scan showing us."?    