This clinical study will involve performing a series of medical imaging procedures of the abdomen using both ultrasound and MRI modalities in subjects at risk for or already diagnosed with Nonalcoholic Fatty Liver Disease (NAFLD). The primary objective of this clinical study is to evaluate the clinical feasibility of an investigational ultrasound technique for quantifying liver fat by comparing specific ultrasound-derived biomarkers with the liver fat percentage obtained from MRI Proton Density Fat Fraction (MRI-PDFF) measurements. All subjects enrolled in this study will undergo one investigational abdominal ultrasound examination using the Philips EPIQ Ultrasound System and one MRI PDFF examination according to the clinical standard of care.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
30
All subjects enrolled in this study will undergo two abdominal ultrasound examinations using the investigational Liver Fat Quantification feature on the Philips EPIQ Ultrasound System. In addition, all subjects will also undergo one MRI-PDFF examination according to the clinical standard of care.
Phoenix Children's Hospital
Phoenix, Arizona, United States
Correlation of the Liver Fat Percentage Reported From MRI-PDFF With Measurements of Hepatorenal Index (HRI) Ultrasound Biomarker for Liver Fat.
For each biomarker per subject, multiple quantitative measurements were acquired on the same day by two different operators. The difference between the two operators was calculated at the subject level by averaging multiple measurements. To assess the correlation between measurements derived from the investigational LFQ feature and the 'clinical' MRI-PDFF fat fraction obtained from the subject's medical record. A higher HRI value indicates greater liver fat accumulation, which reflects a worse outcome, while a lower HRI suggests less hepatic fat and a better outcome.
Time frame: Intra-procedural (1 day)
Correlation of the Liver Fat Percentage Reported From MRI-PDFF With Measurements of Acoustic Attenuation (dB/cm/MHZ) Ultrasound Biomarker for Liver Fat.
For each biomarker per subject, multiple quantitative measurements were acquired on the same day by two different operators. To assess the correlation between subject averaged measurements derived from the investigational LFQ feature and the 'clinical' MRI-PDFF fat fraction obtained from the subject's medical record. Correlation of each ultrasound biomarker with the liver fat percentage reported from MRI-PDFF is assessed independently to evaluate individual biomarker performance. A higher attenuation value indicates worse liver condition, while a lower attenuation value suggests better liver status.
Time frame: Intra-procedural (1 day)
Correlation of the Liver Fat Percentage Reported From MRI-PDFF With Measurements of Tissue Stiffness (kPa) Ultrasound Biomarkers for Liver Fat.
For each biomarker per subject, multiple quantitative measurements were acquired on the same day by two different operators. To assess the correlation between subject averaged measurements derived from the investigational LFQ feature and the 'clinical' MRI-PDFF fat fraction obtained from the subject's medical record. This measured the MRI PDFF fat fraction used as the standard to evaluate the Tissue stiffness (kPa) measurements. Correlation of each ultrasound biomarker with the liver fat percentage reported from MRI-PDFF is assessed independently to evaluate individual biomarker performance. Correlation of each ultrasound biomarker with the liver fat percentage reported from MRI-PDFF will be assessed independently to evaluate individual biomarker performance.
Time frame: Intra-procedural (1 day)
To Evaluate the Same-day Inter-operator Variability for Investigating Biomarker "Hepatorenal Index (HRI)"
To assess the difference in quantitative ultrasound biomarker measurements which acquired from the same subject on the same day by two different operators who have undergone standardized training for LFQ data acquisition. The difference between the two operators was calculated at the subject level by averaging multiple measurements. A higher HRI value indicates greater liver fat accumulation, which reflects a worse outcome, while a lower HRI suggests less hepatic fat and a better outcome.
Time frame: Intra-procedural (1 day)
To Evaluate the LFQ Data Acquisition Failure Rate for Investigating Biomarker "Hepatorenal Index (HRI)"
To evaluate the LFQ data acquisition failure rate, the proportion of subjects who have at least one unacceptable image quality due to inadequate acoustic scanning windows, motion artifacts, or other technical limitations
Time frame: Intra-procedural (1 day)
To Evaluate the Same-day Inter-operator Variability for Investigating Biomarker Acoustic Attenuation (dB/cm/MHZ)
To assess the difference in quantitative ultrasound biomarker measurements which acquired from the same subject on the same day by two different operators who have undergone standardized training for LFQ data acquisition. The difference between the two operators was calculated at the subject level by averaging multiple measurements.
Time frame: Intra-procedural (1 day)
To Evaluate the Same-day Inter-operator Variability for Investigating Biomarker Tissue Stiffness (kPa)
To assess the difference in quantitative ultrasound biomarker measurements which acquired from the same subject on the same day by two different operators who have undergone standardized training for LFQ data acquisition. The difference between the two operators was calculated at the subject level by averaging multiple measurements.
Time frame: Intra-procedural (1 day)
To Evaluate the LFQ Data Acquisition Failure Rate for Investigating Biomarker Tissue Stiffness (kPa)
To evaluate the LFQ data acquisition failure rate, the proportion of subjects who have at least one unacceptable image quality due to inadequate acoustic scanning windows, motion artifacts, or other technical limitations
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Time frame: Intra-procedural (1 day)
To Evaluate the LFQ Data Acquisition Failure Rate for Investigating Biomarker Acoustic Attenuation (dB/cm/MHZ)
To evaluate the LFQ data acquisition failure rate, the proportion of subjects who have at least one unacceptable image quality due to inadequate acoustic scanning windows, motion artifacts, or other technical limitations
Time frame: Intra-procedural (1 day)