Intraosseous infusion catheters are well suited for MDCT assessment because the position of the tip of the intraosseous catheter cannot be assessed at routine autopsy. Intraosseous access is used in life-threatening emergencies when intravenous access using peripheral or central veins is unsuccessful (Luck et al. 2009). Cardiac arrest from hypovolemic shock, severe burn injury with shock, multiple traumas with shock, and status epilepticus are conditions that may require intraosseous access during resuscitation. ese catheters are most o¤en placed in the medullary space of the tibia (Figure 13.2) or sternum (Figure 13.3).