Assessment of delayed graft function using susceptibility-weighted imaging in the early period after kidney transplantation: a feasibility study

Jun Sun, Shengnan Yu, Jie Chen, Zhaoyu Xing, Tingting Zha, Min Fan, Dexing Zeng, Wei Xing

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Purpose: This study aimed to explore the feasibility of susceptibility-weighted imaging (SWI) for evaluating delayed graft function (DGF) during the early posttransplantation period. Methods: Sixty-nine recipients who accepted allograft renal transplantation underwent SWI during the second posttransplantation week. Renal allograft function was estimated via the glomerular filtration rate. Recipients with and without DGF were identified. For each transplanted kidney, the presence of abnormal signal intensity lesions (ASILs), excluding benign lesions, on SWI was assessed. Renal allograft function was compared between the recipients with and without ASILs. The correlation between ASILs and renal allograft function was tested by Spearman’s rank correlation analysis. Results: Thirty-four recipients were diagnosed with DGF, while 35 recipients showed no DGF. In the DGF group, 16 recipients had low-intensity ASILs, primarily at the corticomedullary junction of transplanted kidneys on SWI, and no ASILs were found in 18 recipients. In the non-DGF group, none of the recipients showed ASILs on SWI. In the DGF group, the renal allograft function among the 16 recipients with low-intensity ASILs was significantly lower than that among the other 18 recipients (8.5 ± 4.2 vs. 19.7 ± 9.7 mL/min, P < 0.001). The presence of low-intensity ASILs on SWI showed a moderate negative correlation with renal allograft function in recipients with DGF (r = − 0.553, P = 0.001). Conclusion: SWI can be used to evaluate DGF in the early post-kidney transplantation period.

Original languageEnglish (US)
Pages (from-to)218-226
Number of pages9
JournalAbdominal Radiology
Volume44
Issue number1
DOIs
StatePublished - Jan 15 2019
Externally publishedYes

Keywords

  • Delayed graft function
  • Diagnostic imaging
  • Kidney transplantation
  • Magnetic resonance imaging
  • Susceptibility-weighted imaging

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Gastroenterology
  • Urology

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