Four-dimensional computed tomography is useful for detection of apical sparing of cardiac amyloidosis.
Int J Cardiovasc Imaging
; 2024 May 10.
Article
em En
| MEDLINE
| ID: mdl-38727787
ABSTRACT
A 73-year-old male was admitted because of recurrent syncope. He was diagnosed with transient bradycardia caused by a 21 atrioventricular block, and he underwent cardiac computed tomography (CT) using 320 detector-row CT to screen for coronary artery disease. Significant coronary artery stenosis was not detected, but diffuse late iodinate enhancement was found on the epi-myocardium and endo-myocardium of the interventricular septum, and endo-myocardium of the anterior and lateral left ventricular (LV) myocardium (LVM) on CT. The ejection fraction and global longitudinal strain (LS) of LVM were 53.97% and - 9.87% on CT. Apical sparing was present, meaning the LS of LV apical segments were preserved compared with basal segments on CT. Pathological findings of LVM demonstrated loss of myocardial cells and extra-cellular amyloid deposition on the direct fast scarlet staining. He was finally diagnosed with transthyretin amyloidosis.
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MEDLINE
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Ano de publicação:
2024
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Article