Influenza vaccination may lead to FDG-avid draining lymph nodes beyond 1 month.

In patients with stable chest pain and CAD as determined by coronary CTA, the overall diagnostic accuracy levels of FFR and SPECT were identical in assessing hemodynamically significant stenosis. However, FFR demonstrated a significantly higher diagnostic sensitivity than SPECT.

Background-Although type 2 diabetes mellitus is a risk factor for developing congestive heart failure, the mechanism leading to heart failure is unclear. We examined the prevalence of left ventricular (LV) systolic and diastolic dysfunction in patients with type 2 diabetes mellitus in relation to vascular function and myocardial perfusion. Methods and Results-A prospective observational study of 305 patients with type 2 diabetes mellitus (diabetes duration, 4.5Ϯ5.3 years) referred consecutively to a diabetes clinic were screened for LV systolic and diastolic function by echocardiography. Vascular function was estimated using noninvasive estimation of pulse pressure, carotid arterial compliance, total arterial compliance, and valvulo-arterial impedance. The prevalences of LV diastolic dysfunction and left atrial (LA) volume index Ͼ32 mL/m 2 were 40% and 32%, respectively. The prevalence of myocardial ischemia on myocardial perfusion scintigraphy was more frequent in patients with grade 2 diastolic dysfunction and LA volume index Ͼ32 mL/m 2 compared with those having normal or grade 1 diastolic dysfunction (Pϭ0.002) or LA volume index Յ32 mL/m 2 (PϽ0.001), respectively. Predictors of grade 2 diastolic dysfunction and LA dilation were summed stress score on myocardial perfusion scintigraphy, total arterial compliance, and valvulo-arterial impedance, whereas pulse pressure and carotid arterial compliance were not, after adjusting for age, sex, and diabetes duration. On multivariable modeling, summed stress score (PϽ0.001) and valvulo-arterial impedance (Pϭ0.027) remained predictors of grade 2 diastolic dysfunction, and only summed stress score (PϽ0.001) was a predictor of LA dilation. Conclusions-Abnormal LV filling is closely associated with abnormal myocardial perfusion on myocardial perfusion scintigraphy, whereas the association of LV filling with vascular function is less prominent. Clinical Trial Registration-The trial has been registered at www.clinicaltrial.gov with Identifier: NCT00298844.(Circ Cardiovasc Imaging. 2010;3:24-31.)