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Related Concept Videos

Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
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Diffusion-weighted imaging for staging chronic kidney disease: a meta-analysis.

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Diffusion-weighted imaging (DWI) shows lower apparent diffusion coefficient (ADC) values in early chronic kidney disease (CKD) stages. DWI aids in staging CKD, with advanced stages exhibiting distinct ADC values, supporting its role in clinical decisions.

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Area of Science:

  • Nephrology
  • Radiology
  • Medical Imaging

Background:

  • Chronic kidney disease (CKD) affects millions globally, necessitating accurate staging for effective management.
  • Diffusion-weighted imaging (DWI) offers a non-invasive method to assess tissue microstructure.
  • Apparent diffusion coefficient (ADC) derived from DWI provides quantitative insights into tissue water diffusion.

Purpose of the Study:

  • To evaluate the utility of apparent diffusion coefficient (ADC) values from diffusion-weighted imaging (DWI) for staging chronic kidney disease (CKD).
  • To perform a meta-analysis of existing studies correlating DWI-derived ADC values with CKD stages.

Main Methods:

  • A systematic literature search was conducted across major databases (PubMed, Web of Science, Cochrane, Embase) for studies published between 1999 and 2017.
  • ADC values from healthy kidneys and CKD patients across different stages were extracted.
  • A meta-analysis using a random-effects model was performed to compare ADC values between groups.

Main Results:

  • Six studies were included in the meta-analysis.
  • Earlier CKD stages (1-2) demonstrated significantly lower ADC values compared to healthy kidneys (WMD = -0.09, p < 0.001).
  • CKD Stage 3 showed higher ADC values than Stage 4-5 (WMD = -0.21, p = 0.01), while no significant difference was found between Stage 3 and earlier stages (p = 0.08).

Conclusions:

  • Diffusion-weighted imaging (DWI) is an accurate and non-invasive technique for the early diagnosis and staging of CKD.
  • Quantitative DWI, through ADC values, shows potential for guiding clinical decisions in CKD patient follow-up and management.