MRI QSM Imaging for Iron Overload

Not Recruiting

Trial ID: NCT04631718


The overall goal of this project is to develop and validate a novel technique for Magnetic Resonance Imaging (MRI)-based Quantitative Susceptibility Mapping (QSM) of the abdomen, for non-invasive assessment of liver iron deposition. In this work, study team will develop and optimize advanced data acquisition and image reconstruction methods to enable QSM of the abdomen. Further, investigators will determine the accuracy, repeatability, and reproducibility of abdominal QSM for iron quantification in patients with liver iron overload. Excessive accumulation of iron in various organs, including the liver, which affects both adult and pediatric populations, is toxic and requires treatment aimed at reducing body iron stores. Accurate assessment of liver iron concentration is critical for the detection and staging of iron overload as well as for longitudinal monitoring during treatment. In summary, this project will develop a novel MRI-based QSM technique designed for the abdomen and will validate it in pediatric and adult patients with liver iron overload. Upon successful validation, QSM will provide accurate, repeatable, and reproducible quantification of LIC based on a fundamental property of tissue.

Official Title

MRI-based Quantitative Susceptibility Mapping of Hepatic Iron Overload

Stanford Investigator(s)

Shreyas Vasanawala, MD/PhD
Shreyas Vasanawala, MD/PhD

William R. Brody Professor of Pediatric Radiology and Child Health


Inclusion Criteria:

   - Ages 10 years or older at University of Wisconsin - Madison

   - Age 5 years or older at Stanford

   - Known or suspected iron overload

Exclusion Criteria:

   - Patients with contraindication to MRI (e.g. pacemaker, contraindicated metallic
   implants, etc)

   - Pregnant or trying to become pregnant (as determined by self-report during MRI safety

   - Patients requiring intravenous (IV) conscious sedation for imaging are not eligible;
   patients requiring mild, oral anxiolytics for the MRI will be allowed to participate
   as long as the following criteria are met:

      - The subject has their own prescription for the medication.

      - The informed consent process is conducted prior to the self-administration of
      this medication

      - They come to the research visit with a driver


radiation: Magnetic Resonance Imaging (MRI)-based Quantitative Susceptibility Mapping (QSM)

Not Recruiting

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Shreyas Vasanawala, MD, PhD