Ishikawa I, Saito Y, Onouchi Z, Matsuura H, Saito T, Suzuki M, Futyu Y
J Comput Assist Tomogr. 1985 Sep-Oct;9(5):894-7. doi: 10.1097/00004728-198509000-00010.
Computed tomography was performed in seven patients with acute pyelonephritis 6 h after the administration of contrast medium. Four patients revealed patchy wedge-shaped areas of contrast enhancement. The scans immediately after contrast medium administration showed decreased attenuation in these wedge-shaped areas. These results suggest that CT performed hours after contrast medium administration may reveal delayed enhancement in a significant number of patients with acute pyelonephritis.
