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• W3087918056 abstract "Background Screening for rapidly progressing autosomal dominant polycystic kidney disease (ADPKD) is necessary for assigning and monitoring therapies. Height‐adjusted total kidney volume (ht‐TKV) is an accepted biomarker for clinical prognostication, but represents only a small fraction of information on abdominal MRI. Purpose To investigate the utility of other MR features of ADPKD to predict progression. Study Type Single‐center retrospective. Population Longitudinal data from 186 ADPKD subjects with baseline serum creatinine, PKD gene testing, abdominal MRI measurements, and ≥2 follow‐up serum creatinine were reviewed. Field Strength/Sequence 1.5T, T 2 ‐weighted single‐shot fast spin echo, T 1 ‐weighted 3D spoiled gradient echo (liver accelerated volume acquisition) and 2D cine velocity encoded gradient echo (phase contrast MRA ). Assessment Ht‐TKV, renal blood flow (RBF), number and fraction of renal and hepatic cysts, bright T 1 hemorrhagic renal cysts, and liver and spleen volumes were independently assessed by three observers blinded to estimated glomerular filtration rate (eGFR) data. Statistical Tests Linear mixed‐effect models were applied to predict eGFR over time using MRI features at baseline adjusted for confounders. Validation was performed in 158 patients who had follow‐up MRI using receiver operator characteristic, sensitivity, and specificity. Results Hemorrhagic cysts, fraction of renal and hepatic cysts, height‐adjusted liver and spleen volumes were significant independent predictors of future eGFR (final prediction model R 2 = 0.88 P < 0.05). The number of hemorrhagic cysts significantly improved the prediction compared to ht‐TKV in predicting future eGFR (area under the curve [AUC] = 0.94, 95% confidence interval [CI]: 0.9–0.94 vs. R 2 = 0.9, 95% CI: 0.85–0.9, P = 0.045). For baseline eGFR ≥60 ml/min/1.73m 2 , sensitivity for predicting eGFR<45 ml/min/1.73m 2 by ht‐TKV alone was 29%. Sensitivity increased to 72% with all MRI variables in the model ( P < 0.05 = 0.019), whereas specificity was unchanged, 100% vs. 99%. Data Conclusion Combining multiple MR features including hemorrhagic renal cysts, renal cyst fraction, liver and spleen volume, hepatic cyst fraction, and renal blood flow enhanced sensitivity for predicting eGFR decline in ADPKD compared to the standard model including only ht‐TKV. Level of Evidence 2 Technical Efficacy Stage 2 J. MAGN. RESON. IMAGING 2021;53:564–576." @default.
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• W3087918056 date "2020-09-23" @default.
• W3087918056 modified "2023-10-14" @default.
• W3087918056 title "Hemorrhagic Cysts and Other <scp>MR</scp> Biomarkers for Predicting Renal Dysfunction Progression in Autosomal Dominant Polycystic Kidney Disease" @default.
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• W3087918056 doi "https://doi.org/10.1002/jmri.27360" @default.
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