Japanese journal of radiology · 2013
CT features of myocardial fat and correlation with clinical background in patients without cardiac disease.
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Matsuo Yuka, Kimura Fumiko, Nakajima Takatomo, Inoue Kaiji, Mizukoshi Waka, Kozawa Eito, Sakai Fumikazu
Аннотация
OBJECTIVE: To evaluate the frequency and common locations of myocardial fat and its associated factors using coronary CT angiography (CCTA) in patients without cardiac disease.
METHODS: Using CCTA findings for 298 consecutive patients without cardiac disease, we categorized the myocardium into nine locations, scored fat in those locations, and correlated the fat score with the thickness of the right ventricular (RV) free wall and factors including gender, age, and body mass index (BMI) as well as history of diabetes mellitus, hypertension (HT), and dyslipidemia.
RESULTS: We observed myocardial fat in 68.5 % of patients, most commonly in the RV outflow tract (RVOT, 64.1 %), followed by the base (42.3 %) and middle (28.9 %) of the RV free wall, RV trabeculations (22.5 %), and the left ventricular apex (11.4 %). The RV free wall thickened significantly with increasing fat score. Dependent variables for myocardial fat were female gender (P < 0.0001), age ≥65 years (P = 0.0043), BMI ≥25 (P = 0.0050), and HT (P = 0.0139).
CONCLUSION: Myocardial fat is a common finding on CCTA in patients without cardiac disease, is often observed in the RVOT, and is more frequent in female patients, those older than 65 years, those with BMI ≥25, and those with HT.
METHODS: Using CCTA findings for 298 consecutive patients without cardiac disease, we categorized the myocardium into nine locations, scored fat in those locations, and correlated the fat score with the thickness of the right ventricular (RV) free wall and factors including gender, age, and body mass index (BMI) as well as history of diabetes mellitus, hypertension (HT), and dyslipidemia.
RESULTS: We observed myocardial fat in 68.5 % of patients, most commonly in the RV outflow tract (RVOT, 64.1 %), followed by the base (42.3 %) and middle (28.9 %) of the RV free wall, RV trabeculations (22.5 %), and the left ventricular apex (11.4 %). The RV free wall thickened significantly with increasing fat score. Dependent variables for myocardial fat were female gender (P < 0.0001), age ≥65 years (P = 0.0043), BMI ≥25 (P = 0.0050), and HT (P = 0.0139).
CONCLUSION: Myocardial fat is a common finding on CCTA in patients without cardiac disease, is often observed in the RVOT, and is more frequent in female patients, those older than 65 years, those with BMI ≥25, and those with HT.