Related Experiment Video
Updated: May 26, 2026
05:37
A 3D Quantification Technique for Liver Fat Fraction Distribution Analysis Using Dixon Magnetic Resonance Imaging
Published on: October 20, 2023
Diffusion-weighted MRI of fatty liver
Ahmet K Poyraz1, Mehmet R Onur, Ercan Kocakoç
1Firat University, School of Medicine, Department of Radiology, Turkey. akursadpoyraz@yahoo.com.tr
Journal of Magnetic Resonance Imaging : JMRI
|December 16, 2011
Summary
Apparent diffusion coefficient (ADC) of the liver decreases with increased hepatic fat fraction (HFF). This study found a significant inverse relationship between liver ADC and HFF in patients with fatty liver disease.
Area of Science:
- Radiology
- Medical Imaging
- Hepatology
Background:
- Fatty liver disease is a growing health concern.
- Accurate non-invasive assessment of liver fat is crucial for diagnosis and management.
- Magnetic Resonance Imaging (MRI) offers advanced techniques for liver tissue characterization.
Purpose of the Study:
- To investigate the impact of hepatic fat infiltration on liver apparent diffusion coefficient (ADC).
- To evaluate the correlation between liver ADC and hepatic fat fraction (HFF).
Main Methods:
- Retrospective analysis of MRI scans from 120 patients (42 fatty liver, 78 control).
- Apparent diffusion coefficient (ADC) measured from diffusion-weighted images.
- Hepatic fat fraction (HFF) quantified using T1W GRE dual-echo sequences.
- Statistical analysis included t-tests, linear regression, and Pearson correlation.
Main Results:
- Patients with fatty liver exhibited significantly lower mean ADC values compared to controls (1.20 vs. 1.32 × 10(-3) mm(2)/s, P=0.02).
- A significant inverse relationship was observed between HFF and ADC (r = -0.39, P < 0.0001).
- Mean HFF was substantially higher in the fatty liver group (13.67%) than in the control group (0.85%).
Conclusions:
- Liver ADC is significantly reduced in individuals with elevated hepatic fat fraction (>5%).
- A strong inverse correlation exists between liver ADC and HFF, suggesting ADC as a potential biomarker for fatty liver.
- MRI-based ADC measurements provide valuable insights into liver fat content.
More Related Videos
Related Concept Videos
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:17Assessment of Diffusion and Perfusion
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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...
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...
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
01:27Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...