| If necessary, intravenous pyelography, computed tomography or magnetic resonance imaging can add more information. |
| Water-enhanced antegrade MR pyelography was a safe and effective method of imaging the pregnant patient. |
| Intravenous pyelography has greater sensitivity and specificity for the detection of renal calculi. |
| The majority of these cases followed intravenous administration of ionic-contrast medium during intraveonus pyelography. |
| Antegrade pyelography, however, requires the use of iodinated contrast medium and ionising radiation exposure. |
| Fluoroscopic antegrade pyelography may be indicated to determine the level and cause obstruction. |
