Abdominal radiology (New York) · 2025
Imaging-based biomarkers in acute pancreatitis: the predictive value of adrenal contrast ratios for intensive care unit admission.
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Emir Sevde Nur, Kumru Hasan, Güner Gülbanu, Acar Aylin, Canbak Tolga
Аннотация
BACKGROUND: Early risk stratification is crucial in acute biliary pancreatitis (ABP) to optimize patient management and guide intensive care unit (ICU) admission decisions. Traditional biomarkers and scoring systems have limitations in early severity assessment. This study aimed to evaluate the predictive value of adrenal contrast ratios on contrast-enhanced CT (CECT) as imaging-based biomarkers for ICU admission and prolonged hospitalization in ABP patients.
METHODS: This retrospective study included 288 ABP patients who underwent CECT within 24 h of admission. Adrenal-to-inferior vena cava (IVC) and adrenal-to-spleen contrast ratios were measured from portal venous phase images. The predictive performance of these ratios for ICU admission was assessed using receiver operating characteristic (ROC) analysis, and their correlation with clinical outcomes was evaluated through regression analysis.
RESULTS: ICU-admitted patients had significantly higher adrenal contrast ratios compared to non-ICU patients (adrenal-to-IVC ratio: 1.15 vs. 0.99, p < 0.001; adrenal-to-spleen ratio: 0.97 vs. 0.75, p < 0.001). ROC analysis demonstrated strong predictive accuracy (AUC = 0.74 for adrenal-to-IVC, AUC = 0.81 for adrenal-to-spleen). Additionally, adrenal contrast ratios correlated significantly with prolonged hospital stay (r = 0.49-0.55, p < 0.001).
CONCLUSION: Adrenal contrast ratios serve as promising imaging-based biomarkers for early ICU admission prediction and risk stratification in ABP patients. Their integration into clinical decision-making may enhance early management strategies. Further prospective validation is warranted.
METHODS: This retrospective study included 288 ABP patients who underwent CECT within 24 h of admission. Adrenal-to-inferior vena cava (IVC) and adrenal-to-spleen contrast ratios were measured from portal venous phase images. The predictive performance of these ratios for ICU admission was assessed using receiver operating characteristic (ROC) analysis, and their correlation with clinical outcomes was evaluated through regression analysis.
RESULTS: ICU-admitted patients had significantly higher adrenal contrast ratios compared to non-ICU patients (adrenal-to-IVC ratio: 1.15 vs. 0.99, p < 0.001; adrenal-to-spleen ratio: 0.97 vs. 0.75, p < 0.001). ROC analysis demonstrated strong predictive accuracy (AUC = 0.74 for adrenal-to-IVC, AUC = 0.81 for adrenal-to-spleen). Additionally, adrenal contrast ratios correlated significantly with prolonged hospital stay (r = 0.49-0.55, p < 0.001).
CONCLUSION: Adrenal contrast ratios serve as promising imaging-based biomarkers for early ICU admission prediction and risk stratification in ABP patients. Their integration into clinical decision-making may enhance early management strategies. Further prospective validation is warranted.