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OBJECTIVES To evaluate image quality (IQ) of low-radiation-dose paediatric cardiovascular CT angiography (CTA), comparing iterative reconstruction in image space (IRIS) and sinogram-affirmed iterative reconstruction (SAFIRE) with filtered back-projection (FBP) and estimate the potential for further dose reductions. METHODS Forty neonates and children(More)
OBJECTIVES To evaluate the performance of three-dimensional semi-automated evaluation software for the assessment of myocardial blood flow (MBF) and blood volume (MBV) at dynamic myocardial perfusion computed tomography (CT). METHODS Volume-based software relying on marginal space learning and probabilistic boosting tree-based contour fitting was applied(More)
OBJECTIVE To describe the technical feasibility and usefulness of extrahepatic biliary stone removal by balloon sphincteroplasty and occlusion balloon pushing. MATERIALS AND METHODS Fifteen patients with extrahepatic bile duct stones were included in this study. Endoscopic stone removal was not successful in 13 patients, and two patients refused the(More)
Raoultella species are gram-negative, non-motile, aerobic bacilli that are primarily considered as environmental bacteria. Raoultella planticola is reportedly a rare cause of human infections. Also, the definite pathological mechanism of Raoultella planticola is currently unknown. We report a case of pneumonia caused by Raoultella planticola.
BACKGROUND CT angiography (CTA) is increasingly used for the evaluation of congenital heart disease. OBJECTIVE The aim was to determine the diagnostic accuracy of CTA in infants with tetralogy of Fallot with pulmonary atresia (ToF-PA) and major aortopulmonary collateral arteries (MAPCAs). METHODS We retrospectively evaluated 18 consecutive patients (7(More)
PURPOSE To investigate in vitro and in vivo the use of image-based and raw data-based iterative reconstruction algorithms for quantification of coronary artery calcium by using the Agatston score and subsequent cardiac risk stratification. MATERIALS AND METHODS In vitro data were obtained by using a moving anthropomorphic cardiac phantom containing(More)
We describe a case of percutaneous placement of a thoracic aortic stent-graft for safe removal of a malpositioned pedicle screw in a 52-year-old man. The patient had undergone posterior thoracic spinal instrumentation for pyogenic spondylitis and spinal deformity 8 months previously. Follow-up CT images showed a malpositioned pedicle screw which was(More)
BACKGROUND Erythromycin is not only a potent antibiotic; it also has effects of reduction of inflammation and suppression of protein synthesis. PURPOSE To evaluate the impact of erythromycin on tissue hyperplasia after stent placement in a rat esophageal model. MATERIAL AND METHODS A total of 21 rats were included. After placement of self-expanding(More)
Wernicke's encephalopathy (WE) caused by thiamine deficiency is an acute neurological disorder. Clinically, the classic triad of WE consists of ophthalmoplegia, ataxia, and mental status changes. Thiamine deficiency is known to occur commonly in chronic alcoholic patients. Sometimes, it can occur in patients after gastrointestinal surgery and in those with(More)
8-chloro-cyclic AMP (8-Cl-cAMP), which induces differentiation, growth inhibition, and apoptosis in various cancer cells, has been investigated as a putative anti-cancer drug. However, the exact mechanism of 8-Cl-cAMP functioning in cancer cells is not fully understood. Akt/protein kinase B (PKB) genes (Akt1, Akt2, and Akt3) encode enzymes belonging to the(More)