Barium: It is a study for the gastrointestinal tract. It is generally used to highlight abnormalities in the GI tract- to determine the cause of painful swallowing, abdominal pain, bloodstained vomit, or unexplained weight loss. The barium study continues to be performed as a safe, cost-effective diagnostic test for patients with a gamut of gastrointestinal conditions.
IVP ( Intravenous Pyelogram ): IVP is an x-ray exam that uses a special dye to outline the kidneys, ureters, and bladder. It can show how your renal and urinary system handles fluid waste. This helps your health care team find problems in the urinary tract. IVP is used to diagnose why a patient has blood in their urine, or pain in their side/lower back. It can also show us how each person's unique kidneys and urinary system is made.
HSG: Hysterosalpingography (HSG) evaluates the shape of the uterus and checks whether the fallopian tubes are open. It's also used to investigate miscarriages due to problems in the uterus.