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Normal abdominal enhancement patterns with dynamic gadolinium-enhanced MR imaging.
S A Mirowitz1, E Gutierrez, J K Lee
1Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis.
Radiology
|September 1, 1991
Summary
Dynamic gadolinium-enhanced MRI reveals distinct contrast enhancement patterns in abdominal organs. This study provides crucial reference data for interpreting these patterns in clinical settings.
Area of Science:
- Radiology
- Medical Imaging
- Diagnostic Imaging
Background:
- Dynamic contrast-enhanced magnetic resonance (MR) imaging is increasingly used for abdominal imaging.
- Understanding normal organ enhancement patterns is essential for accurate diagnosis.
Purpose of the Study:
- To quantitatively and qualitatively determine contrast enhancement patterns of normal abdominal organs using dynamic gadolinium-enhanced MR imaging.
Main Methods:
- T1-weighted, spin-echo imaging performed during a breath hold in 38 patients.
- Images acquired before, during, and at 1, 2, and 5 minutes post-gadolinium injection.
- Visual evaluation and signal intensity measurements used to determine enhancement patterns.
Main Results:
- Peak organ enhancement occurred during or immediately after contrast bolus injection.
- Observed patterns included renal cortical nephrogram and heterogeneous splenic enhancement.
- Peak enhancement percentages: liver 72%, spleen 172%, pancreas 82%, adrenal gland 85%, kidney 291%.
Conclusions:
- Established reference data for abdominal organ enhancement with dynamic gadolinium-enhanced MR imaging.
- Findings will aid in the clinical implementation and interpretation of this imaging technique.