演題

PE020-6
Heart Failure

Quantitative Analysis of a Calcified Amorphous Tumor of the Heart Using Multi-detector Computed Tomography

[演者] Hirosi Fukushima:1
[共同演者] Haruki Sekiguchi:1, Naoki Serizawa:1, Kotaro Arai:1, Kyoumi Ashihara:1, Kenji Fukushima:2, Michinobu Nagao:2, Kenta Uto:1, Kagari Murasaki:1, Nobuhisa Hagiwara:1
1:Department of Cardiology, Tokyo Women's Medical University, Tokyo, 2:Department od Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo
Background: A calcified amorphous tumor of the heart(CAT) is a rare non-neoplastic cardiac tumor comprising calcium nodules observed against a background of amorphous fibrous material. The etiology of this disease entity remains unclear, and to date, no report has described a quantitative analysis of CAT. We aimed to analyze the quantification of CAT by multi-detector computed tomography(MDCT). Methods: Between 2015 and 2017, 5 patients were diagnosed with CAT. We analyzed this condition by MDCT and echocardiography. We calculated the measurement of longitudinal diameters, mean CT value, volume of calcified lesion, and calcium scoring by Agatston method. Results: The mean age of patients was 68 years(range 47-77) and three of them were men. End-stage renal disease was diagnosed in 3 patients. All patients showed involvement of the left side of the heart with extension of the disease into the mitral valve(n=4) and septal wall(n=1). The mass ranged between 11 mm and 25 mm in diameter. Most CATs showed a low CT area (80%). The calcification volume was 2575±894mm3, mean CT was 282±47 HU, and the Agatston score was 3512±1204. Cardiac surgery was performed in 3 patients who developed stroke. The histopathological examination of CAT specimens showed calcified amorphous debris with admixed degenerated fibrin and focal inflammation.Conclusions: Ours is the first report for the morphological findings of CAT evaluated quantitatively by MDCT.

[Keywords] calcification / computed tomography (CT)
詳細検索