Related Experiment Video
Updated: May 12, 2026

Diffusion Imaging in the Rat Cervical Spinal Cord
Published on: April 7, 2015
Diffusion-weighted MRI in assessment of renal dysfunction
Ankur Goyal1, Raju Sharma, Ashu S Bhalla
1Department of Radiodiagnosis, All India Institute of Medical Sciences (A.I.I.M.S.), New Delhi, India.
Background:
Diffusion-weighted magnetic resonance imaging (DW-MRI) in renal diseases is an evolving field and its potential is yet to be fully realized.
Purpose:
To study the relationship between apparent diffusion coefficient (ADC) values of renal parenchyma and serum markers of renal function and stage of chronic kidney disease (CKD).
Materials And Methods:
A retrospective review was performed of all adult patients who underwent DW-MRI (at b-values of 0 and 500 s/mm(2)) for renal lesions from January 2009 to September 2010 and revealed 88 patients, of which 22 patients had renal dysfunction and 66 had normal renal function. Of these 22, 15 patients were known cases of CKD and were staged depending on disease severity. ADC values were determined for renal parenchyma and compared. Receiver operating characteristic (ROC) curves were drawn to establish cut-off ADC values. Pearson's correlation coefficient (R) was calculated between ADC and renal function parameters.
Results:
ADC values in patients with renal dysfunction were significantly lower than in patients with normal renal function (2.1133 ± 0.2851 vs. 2.3198 ± 0.1246 (×10(-3) mm(2)/s)). ADC values lower than 2.0354 (×10(-3) mm(2)/s) were seen only with renal dysfunction and higher than 2.4516 (×10(-3) mm(2) /s) were seen only with normal function. There was significant inverse correlation between ADC and serum creatinine (R = -0.530), blood urea (R= -0.502), and significant linear correlation (R = 0.784) with estimated glomerular filtration rate (eGFR). ADC values showed a statistically significant decreasing trend with increasing stage of CKD.
Conclusion:
ADC values may serve as an additional marker for the presence and degree of renal dysfunction.
Insights
Apparent diffusion coefficient (ADC) values from diffusion-weighted MRI can help detect renal dysfunction and chronic kidney disease (CKD) severity. Lower ADC values indicate poorer kidney function.
Area of Science:
- Radiology
- Nephrology
- Medical Imaging
Background:
- Diffusion-weighted magnetic resonance imaging (DW-MRI) is an emerging technique for assessing renal diseases.
- The full potential of DW-MRI in nephrology is still under investigation.
Purpose of the Study:
- To investigate the correlation between apparent diffusion coefficient (ADC) values in the renal parenchyma and markers of kidney function.
- To assess the relationship between ADC values and the stage of chronic kidney disease (CKD).
Main Methods:
- Retrospective analysis of adult patients undergoing DW-MRI for renal lesions.
- Comparison of renal parenchyma ADC values between patients with normal and impaired renal function.
- Correlation analysis between ADC values and serum creatinine, blood urea, and estimated glomerular filtration rate (eGFR).
Main Results:
- Patients with renal dysfunction exhibited significantly lower ADC values compared to those with normal renal function.
- A significant inverse correlation was observed between ADC values and serum creatinine and blood urea levels.
- A significant positive linear correlation was found between ADC values and eGFR.
- ADC values demonstrated a decreasing trend with advancing stages of CKD.
Conclusions:
- Apparent diffusion coefficient (ADC) values derived from DW-MRI show promise as a non-invasive biomarker.
- ADC values may aid in identifying the presence and severity of renal dysfunction and CKD.
Related Concept Videos
Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
Imaging Studies IV: Magnetic Resonance Imaging
Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate
Factors Affecting Renal Clearance: Renal Impairment
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
Magnetic Resonance Imaging

