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《Radiologic Practice》 2018-01
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The correlation of ADC value and procalcitonin in acute pyelonephritis:apreliminary study

LIU Xiao;QUAN Guan-min;LI Xue qing;Department of Medical Imaging,Second Hospital of Hebei Medical University;  
Objective:To study the correlation of ADC value and procalcitonin(PCT)level in acute pyelonephritis(APN).Methods:MR-DWI was performed in eight consecutive patients with APN(b=800 s/mm2).ADC values in APN lesions as well as and normal renal parenchyma in contralateral kidney were measured.The level of PCT measured within 12 hours of DWI was recorded.Using two independent sample,t test was calculated to compare the differences of ADC value in APN lesions and the contralateral normal renal parenchyma.Pearson correlation analysis and linear regression were performed to investigate the correlation between ADC value of APN lesions with PCT level.Results:There was a significant difference for ADC value between APN lesions and the contralateral normal renal parenchyma[(1.38±0.09)vs(2.14±0.14)mm~2/s,t=11.725,P0.001].ADC value of APN lesions was negatively correlated with PCT(r=-0.786,P=0.021).Conclusion:The ADC value of APN was markedly decreased,and the degree of decreased ADC value showed certain correlation with the value of PCT.Thus,ADC value might reflect the degree of inflammation of APN.
【Fund】: 河北省医学科学研究重点课题计划20150263
【CateGory Index】: R445.2;R692.3
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