Neutrophil/Lymphocyte ratio is associated with non-calcified plaque burden in patients with coronary artery disease.

Background: Elevations in soluble markers of inflammation and changes in leukocyte subset distribution are frequently reported in patients with coronary artery disease (CAD). Lately, the neutrophil/lymphocyte ratio has emerged as a potential marker of both CAD severity and cardiovascular prognosis.

Objectives: The aim of the study was to investigate whether neutrophil/lymphocyte ratio and other immune-inflammatory markers were related to plaque burden, as assessed by coronary computed tomography angiography (CCTA), in patients with CAD.

Large variation in blood flow between left ventricular segments, as detected by adenosine stress dynamic CT perfusion.

Background: Dynamic cardiac CT perfusion (CTP) is based on repeated imaging during the first-pass contrast agent inflow. It is a relatively new method that still needs validation.

Purpose: To evaluate the variation in adenosine stress dynamic CTP blood flow as compared to (99m) Tc SPECT.