The radionuclide salivagram was introduced as a simple physiologic tec
hnique to document the aspiration of saliva in patients with chronic l
ung disease. We previously reported positive studies to be prevalent i
n patients with neuromuscular incoordination, as with cerebral palsy,
or after surgery involving the upper airway. Many patients referred fo
r a salivagram, however, have an apparent intact swallowing mechanism
and are better challenged with a tagged bolus.