A hemodialysis patient presented with an abnormal CXR (Panel A) 13 years after coronary artery bypass grafting and a CT scan was performed (Panel B). Maximal-intensity-projection (Panel C) and 3D reconstructions (Panel D) revealed a large aneurysm, containing thrombus, arising from the vein graft to his right coronary artery (Fig. 1). Fig. 1. (A) Chest radiograph (PA) showing the abnormal right...

dL, total bilirubin 2.34 mg/dL, LDH 4 077 U/L. Brain CTscan: right frontal and right cerebellar hematomas. Bone marrow smear presented 89% of myeloperoxidase-positive blast cells, consistent with an acute myelomonocytic leukaemia (Fig. 2). Immunophenotypic analysis showed 60% of monocyte-derived dendritic cells, compatible with an aggressive and rare form of leukemia – acute myeloid dendritic c...

A 72-year-old woman was admitted in the Cardiology Department for respiratory insufficiency. ECG revealed atrial fibrillation, and echocardiography revealed heart failure with an estimated left ventricular ejection fraction of 25%. Chest roentgenogram revealed multiple nodules, and chest CT scan revealed multiple dense nodules surrounded by ground-glass attenuation (halo sign) with unilateral p...

introduction: in radiotherapy, methods of treatment planning are becoming increasingly more complicated. this requires verification of the doses delivered to increasingly smaller and more precise regions. radiotherapy techniques are continuously employing smaller and smaller field sizes to deliver tighter radiation doses with higher therapeutic ratios, generating interest among researchers to p...

geant4 is an open source simulation toolkit based on c++, which its advantages progressively lead to applications in research domains especially modeling the biological effects of ionizing radiation at the sub-cellular scale. however, it was shown that geant4 does not give a reasonable result in the prediction of antiproton dose especially in bragg peak. one of the reasons could be lack of a re...

Introduction: In radiotherapy, methods of treatment planning are becoming increasingly more complicated. This requires verification of the doses delivered to increasingly smaller and more precise regions. Radiotherapy techniques are continuously employing smaller and smaller field sizes to deliver tighter radiation doses with higher therapeutic ratios, generating interest among researchers to p...

introduction magnetic fields are capable of altering the trajectory of electron beams andcan be used in radiation therapy.theaim of this study was to produce regions with dose enhancement and reduction in the medium. materials and methods the ndfeb permanent magnets were arranged on the electron applicator in several configurations. then, after the passage of the electron beams (9 and 15 mev va...