Which myeloma patients consider having a DEXA scan in addition to the advanced imaging techniques used to monitor myeloma?

Which myeloma patients consider having a DEXA scan in addition to the advanced imaging techniques used to monitor myeloma?
If I have myeloma, what should my relatives know about myeloma screening? Who is it recommended for? What tests should be done?
What are the different types of chromosomal mutations?
What is the role of imaging at a myeloma diagnosis? What types of imaging are recommended?