Actually, there is a swallow test called, video flouriscopic swallow study. The radiologist views your swallowing with barium or other contrast--in various forms (liquid, solids, crackers, pills, etc) right there (of course it's recorded also). Better then manometry, (IMO) The probe for manometry is further down in the esophagus so great test for ruling out esophageal spasms and motility disorders.

Inquire about a swallow study for an accurate diagnosis of swallowing problems.