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Native T1 mapping in assessment of kidney fibrosis in patients with chronic glomerulonephritis
Zhaoyu Shi1, Fangfang Shang1, Xinquan Wang1, Hongmei Gu1, Xiaoyan Liu1, Weiqiang Dou2, Weiyin Vivian Liu2, Yuan Zhang1, Jianhua Wu1, and Li Yuan1
1Affiliated Hospital of Nantong University, Nantong, China, 2GE Healthcare, MR Research China, Beijing, China
Native T1-mapping demonstrated good diagnostic performance in evaluation of renal function and non-invasive detection of fibrosis in chronic glomerulonephritis patients.
Fig.1 Renal T1 maps. A: Coronal native T1 map of two kidneys of a healthy subject, T1=1539ms. B: CKD stage 1, T1=1622ms. C: CKD stage 2, T1=1751ms. D: CKD stage 3, T1=1796ms. E: CKD stage 4, T1=1902ms. F: CKD stage 5, T1=2068ms.
Fig.2 A: T1 value of renal cortex was significantly lower in the HC group than in CKD patients(F=29.62, P<0.001). Statistical differences of T1 values were found between CKD stages except for stage 2 and 3 (p<0.05). B: Compared to non-fibrosis group, T1 value increased in the low and medium fibrosis group (p<0.05). C: The area under the ROC curve of T1 value for the prediction of IF is 0.762, and the optimal cutoff value of T1 is 1695 ms.