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Tissue Preparation Techniques for Contrast-Enhanced Micro Computed Tomography Imaging of Large Mammalian Cardiac Models with Chronic Disease
Published on: February 8, 2022
Cardiac amyloidosis: typical imaging findings and diffuse myocardial damage demonstrated by delayed contrast-enhanced
Eijun Sueyoshi1, Ichiro Sakamoto, Tomoaki Okimoto
1Department of Radiology, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan. EijunSueyoshi@aol.com
Abstract:
Amyloidosis is a rare systemic disease. However, involvement of the heart is a common finding and is the most frequent cause of death in amyloidosis. We report the sonographic, scintigraphic, and MRI features of a pathologically proven case of cardiac amyloidosis. Delayed contrast-enhanced MR images, using an inversion recovery prepped gradient-echo sequence, revealed diffuse enhancement in the wall of both left and right ventricles. This enhancement suggested expansion of the extracellular space of the myocardium caused by diffuse myocardial necrosis secondary to deposition of amyloid.
Insights
Cardiac amyloidosis, a rare condition, often leads to heart failure. This case highlights how advanced MRI techniques can reveal characteristic myocardial enhancement patterns indicative of amyloid deposition.
Area of Science:
- Cardiology
- Radiology
- Pathology
Background:
- Amyloidosis is a systemic disease characterized by amyloid protein deposition.
- Cardiac involvement is a frequent and often fatal complication of amyloidosis.
Observation:
- This report details the sonographic, scintigraphic, and MRI findings in a confirmed case of cardiac amyloidosis.
- Delayed contrast-enhanced MRI demonstrated diffuse myocardial enhancement in both ventricles.
Findings:
- The observed enhancement pattern on MRI suggests an expanded extracellular space within the myocardium.
- This is attributed to diffuse myocardial necrosis resulting from amyloid deposition.
Implications:
- Advanced MRI imaging is crucial for diagnosing cardiac amyloidosis.
- Understanding these imaging features aids in recognizing the extent of myocardial damage in this condition.
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