ArticleScientific reports2020
Hounsfield unit attenuation value can differentiate pyonephrosis from hydronephrosis and predict septic complications in patients with obstructive uropathy.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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24 citing papers in PubMed, 30 citations in OpenAlex.
- Emergency decompression for patients with ureteral stones and SIRS: a prospective randomized clinical study.Annals of medicine · 2023Trial
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- Predictive value of renal pelvis urine density and perinephric fat stranding for infectious complications after ureteroscopy in patients with obstructive ureteral stones.Urolithiasis · 2026Article
- Preoperative prediction of postoperative SIRS and sepsis after ureteroscopic lithotripsy: discriminative performance of large language models.Urolithiasis · 2026Article
- Time to Decompression in Obstructive Urosepsis from Ureteral Calculi: Thresholds, Initial Diversion, and Early Biomarkers: A Systematic Review.Journal of clinical medicine · 2025Review
- Study on the diagnostic efficacy of the computerized tomography attenuation value of renal pelvis urine in true bacteriuria secondary to renal and ureteral stones.Renal failure · 2025Article
- Radiologically Measured Renal Pelvis Urine Density Is Associated with Severe Infectious Complications After Ureteroscopy for Ureteral Stones: A Post Hoc Analysis of a Multicenter Prospective Study.European urology open science · 2025Article
- A prospective study on the outcome of pyonephrosis and infected hydronephrosis drained by percutaneous nephrostomy - a tertiary care centre experience.Turkish journal of surgery · 2025Article
- Investigation of the predictive value of Hounsfield units in predicting stone culture results in urinary stone disease.Scientific reports · 2025Article
- Early diagnostic model of pyonephrosis with calculi based on radiomic features combined with clinical variables.Biomedical engineering online · 2024Article
- Identification of Calculous Pyonephrosis by CT-Based Radiomics and Deep Learning.Bioengineering (Basel, Switzerland) · 2024Article
- Machine learning constructs a diagnostic prediction model for calculous pyonephrosis.Urolithiasis · 2024Article
- The mean Hounsfield unit range acquired from different slices produces superior predictive accuracy for pyonephrosis in obstructive uropathy.Investigative and clinical urology · 2024Article
- Article
- Prevalence and predictors of stone passage after double J stenting for symptomatic ureteral stones: a cross-sectional, real-life study.World journal of urology · 2024Article
- Clinical and time-related predictors of sepsis in patients with obstructive uropathy due to ureteral stones in the emergency setting.World journal of urology · 2023Article
- The effect of bioelectric impedance analysis on the success of extracorporeal shock wave lithotripsy.Urolithiasis · 2023Article
- Validation of the Trifecta Scoring Metric in Vacuum-Assisted Mini-Percutaneous Nephrolithotomy: A Single-Center Experience.Journal of clinical medicine · 2022Article
- High attenuation value in non-contrast computer tomography can predict pyonephrosis in patients with upper urinary tract stones.Medicine · 2022Article
- Urologists are optimistic surgeons: prevalence and predictors of discordance between intraoperative stone-free rate and cross-sectional imaging evaluation after vacuum-assisted mini-percutaneous nephrolithotomy.World journal of urology · 2022Article
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11 authors at 4 institutions in 1 country.
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Abstract
We aimed to assess the role of computerized tomography attenuation values (Hounsfield unit-HU) for differentiating pyonephrosis from hydronephrosis and for predicting postoperative infectious complications in patients with obstructive uropathy. We analysed data from 122 patients who underwent nephrostomy tube or ureteral catheter placement for obstructive uropathy. A radiologist drew the region of interest for quantitative measurement of the HU values in the hydronephrotic region of the affected kidney. Descriptive statistics and logistic regression models tested the predictive value of HU determination in differentiating pyonephrosis from hydronephrosis and in predicting postoperative sepsis. A HU cut-off value of 6.3 could diagnose the presence of pyonephrosis with 71.6% sensitivity and 71.5% specificity (AUC 0.76; 95%CI: 0.66-0.85). At multivariable logistic regression analysis HU ≥ 6.3 (p ≤ 0.001) was independently associated with pyonephrosis. Patients who developed sepsis had higher HU values (p ≤ 0.001) than those without sepsis. A HU cut-off value of 7.3 could diagnose the presence of sepsis with 76.5% sensitivity and 74.3% specificity (AUC 0.79; 95%CI: 0.71-0.90). At multivariable logistic regression analysis, HU ≥ 7.3 (p ≤ 0.001) was independently associated with sepsis, after accounting for clinical and laboratory parameters. Measuring HU values of the fluid of the dilated collecting system may be useful to differentiate pyonephrosis from hydronephrosis and to predict septic complications in patients with obstructive uropathy.
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