Coronary computed tomography angiography (CCTA) in combination with first-pass CT myocardial perfusion imaging (MPI) has a better diagnostic performance than CCTA alone, compared with invasive coronary angiography as the reference standard. The aim of this study was to investigate the additional diagnostic value of first-pass CT-MPI without stress for detecting hemodynamic significance of coron...

Background The most relevant parameters for the assessment of coronary artery disease (CAD) are myocardial perfusion and the status of the coronary arteries. It has been shown that hybrid imaging strategies to acquire both parameters such as SPECT with CT-angiography provide an added value for clinical decision making in the treatment of CAD. However, SPECT and CT expose the patient to ionizing...

BACKGROUND Coronary tortuosity (CT) is a common coronary angiography finding. The exact pathogenesis, clinical implication and long-term prognosis of CT are not fully understood. The purpose of this study is to investigate the clinical characteristics of CT in patients with suspected coronary artery disease (CAD) in a Chinese population. METHODS A total of 1010 consecutive patients underwent ...

conclusions the eft, as measured by echocardiography, with a cut off value 2.95 mm has a strong association with premature cad. results among baseline characteristics, waist circumference, triglyceride levels, cigarette smoking and history of statin use were significantly higher in the cad group. the body mass index (bmi) was significantly higher in the non-cad group. according to echocardiogra...

Abstract Myocardial bridging (MB) is a congenital anomaly characterized by intramyocardial coronary course that can cause compression during systole and lead to myocardial ischemia. The improvement in computed tomography (CT) scanner technology has increased the detection of MB coronary–CT (cCT) exam but assessment their functional significance often challenging. Tha stress–rest perfusion imagi...

Chest pain is a common presenting symptom. Identifying patients with underlying coronary artery disease (CAD) is challenging 1. Across Northern Ireland, Exercise Stress Testing (EST) is the commonest first line investigation at chest pain clinics. EST has a 45-50% sensitivity for predicting CAD. 1 One third of patients diagnosed with non-cardiac chest pain develop ACS or die from IHD within 5 y...

background: this study set out to evaluate the utility of cerebrovascular virtual non-contrast (vnc) scans. materials and methods: conventional non-contrast (cnc) and dual-energy computed tomography angiography (de-cta) head scans were conducted on 100 subjects, of which 46 were normal, 15 had parenchymal hematomas of the brain, 13 had ischemic infarction, 22 had tumors, and 4 had calcified les...