Journal article

MRI and suspected acute pyelonephritis in children: comparison of diffusion-weighted imaging with gadolinium-enhanced T1-weighted imaging

Pierre-Hugues Vivier, Asmaa Sallem, Marion Beurdeley, Ruth P Lim, Julien Leroux, Jerome Caudron, Cyril Coudray, Agnes Liard, Isabelle Michelet, Jean-Nicolas Dacher



OBJECTIVES: To evaluate the performance of diffusion-weighted imaging (DWI) against the reference standard of gadolinium-enhanced T1-weighted imaging (Gd-T1-WI) in children. METHODS: Thirty-nine consecutive patients (mean age 5.7 years) with suspected acute pyelonephritis underwent magnetic resonance imaging (MRI) including DWI and (the reference standard) Gd-T1-WI. Each study was read in double-blinded fashion by two radiologists. Each kidney was graded as normal or abnormal. Sensitivity and specificity of DWI were computed. Agreement between sequences and interobserver reproducibility were calculated (Cohen κ statistic and the McNemar tests). RESULTS: Thirty-two kidneys (41 %) had hypo-enh..

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University of Melbourne Researchers