Definition: Pyelography is a diagnostic procedure in which a catheter or other instrument is inserted into the fallopian tube to visualize and examine the่พๅต็ฎก. This procedure can be used to diagnose conditions such as endometriosis, ovarian cysts, and pelvic inflammatory disease by observing patterns of fluid flow and changes in tissue color and texture. The aim is to determine if there are abnormalities in the lining of the tubes or any potential issues with the reproductive system.