INTRODUCTION To investigate retrospectively the impact of urinary stone volume on computed tomography stone attenuations measured in Hounsfield units in 253 patients with urolithiasis. MATERIAL AND METHODS CT scans were performed in 253 patients with suspected urinary stone disease from 2008 to 2010 using CT-Scanner Siemens, SOMATOM, Sensation 64. One experienced radiologist (A.L) who was bli...

-This paper describes initial results of a 3D field topology analysis for automating colour transfer function design aiming at comprehensible volume rendering. Computed tomography (CT) scanners measure the linear xray radio density attenuation values of body tissues in Hounsfield units (HU). Many alternative colour maps have little additional diagnostic or intuitive value relative to grayscale....

BACKGROUND AND PURPOSE Electrocardiogram-gated 4D-CTA is a promising technique allowing new insight into aneurysm pathophysiology and possibly improving risk prediction of cerebral aneurysms. Due to the extremely small pulsational excursions (<0.1 mm in diameter), exact segmentation of the aneurysms is of critical importance. In vitro examinations have shown improvement of the accuracy of vesse...

Several studies showed that sarcopenia is associated with an increase of postoperative complications, worse results in patients pancreatic cancer. According to European Working Group on Sarcopenia, it a "progressive and generalized skeletal muscle loss" characterized by both loss mass strength (Cruz-Jentoft AJ et al., 2019). Aim our work was evaluate the effect occurrence complications after re...

OBJECTIVE We investigated the link between lipid-rich skeletal muscle, namely low-density muscle, and insulin resistance in Korea. RESEARCH DESIGN AND METHODS Abdominal adipose tissue areas and midthigh skeletal muscle areas of 75 obese nondiabetic subjects (23 men, 52 women; mean age +/- SD, 41.9 +/- 14.1 years) were measured by computed tomography (CT). The midthigh skeletal muscle areas we...

The purpose of this study was to compare computed tomography density (ρCT ) obtained using typical clinical computed tomography scan parameters to ash density (ρash ), for the prediction of densities of femoral head trabecular bone from hip fracture patients. An experimental study was conducted to investigate the relationships between ρash and ρCT and between each of these densities and ρbulk a...

Radiol Bras. 2016 Jul/Ago;49(4):267–276 274 In most cases are asymptomatic patients, and the diagnosis is established by examination of cardiac imaging performed for other purposes. The symptoms, when present, correspond to palpitations, dyspnea, and syncope. The prognosis of caseous degeneration of the mitral annulus is good, especially in patients who are asymptomatic, although some patients ...

BACKGROUND The purpose of this study was to evaluate the clinical outcomes of transfusion-associated iron overload in patients with chronic refractory anemia. METHODS Clinical manifestations, main organ function, results of computed tomography (CT), endocrine evaluation, and serum ferritin levels were analyzed retrospectively in 13 patients who were transfusion-dependent for more than 1 year ...

Abstract Objectives To evaluate the changes of Hounsfield units (HU) value in different types Modic (MCs) and to analyze correlation between change HU area ratio MCs region, bone mineral density (BMD), degree intervertebral disc degeneration. Methods One hundred fifty-eight endplates with were included analyzed. values regions adjacent vertebral corresponding without measured. The region was de...