Would a modified barium swallow test show if there was damage to the upper esophageal sphincter? is it possible to damage your upper esophageal sphincter from swallowing too hard or improperly?

The upper esophageal sphincter is actually a muscular valve. A barium swallow study,directed by a speech therapist looks for dysfunction. The radiologist performing the fluoroscopic exam can detect reflux and pathology. . I had a patient who ruptured his esophagus trying to prevent vomiting up colonoscopy prep which he stated tasted like sea water. I don't think improper swallowing would damage