Distribution of number of imaging scans among pediatrics and adults patients. Comparison of imaging scans with present (a) five pediatric scans of: thyroid, bone, HIDA, DTPA, and DMSA, and (b) eight adult scans: thyroid, bone, parathyroid, HIDA, DTPA, DMSA, cardiac rest and cardiac stress, respectively. It can be seen that thyroid scans are frequently performed scans; however, HIDA scans are rare NM procedures among adults and pediatrics.