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- Name two radioisotopes used within the medical imaging processes, one administered by inhalation and one used by intravenous injection. For both of these radioisotopes, what are their half-life and what is the relevance of that to why it is used? What are both of these specific use in diagnostic imaging?What are they treating?Draw the position of the letter "e" as viewed under the Scanner, and the actual position of letter "e" if you were to put it on the stage. Explain why this happens. "e" under Scanner Actual position of "e"I need assistance with how to read Fletcher Munson graphs. Please help and show me the proper way to analyze these graphs. The previous experts I've asked on this platform were incorrect.