What tracers are used in PET/CT scans?

BETA - Is there any advantage of using a CAR vs a TCR or vice versa?
BETA - Are the side effects from TCR -therapy similar to CAR-T cell therapy?
BETA - Does it take as long to manufacture a TCR as it does a CAR-T cell?
BETA - Is the process of using TCR and CAR-T cells similar? What is the difference between a CAR-T and a TCR-T?
BETA - What are TCRT cell receptors?
BETA - What are beta 2 macroglobulin, LDH and albumin? Why are the tested at diagnosis? How often should they be tested?
BETA - What is the Lambda, kappa and ratio? Why is knowing your free light chain ratio important?
BETA - How do you measure free light chains?
What are light chains, how are light chains reported, and why?