Acta radiologica
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It has been suggested that no upper limit of the fluid amount drained is necessary when performing ultrasound-guided thoracentesis, but the risk of pneumothorax when large amounts of fluid are drained has not been studied in detail. ⋯ Our study suggests that drainage of large amounts of fluid at ultrasound-guided thoracentesis is a risk factor for pneumothorax.
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Although magnetic resonance imaging (MRI) is now considered the gold standard in second-line imaging of patients with suspected scaphoid fracture and negative radiographs, bone scintigraphy can be used in patients with pacemakers, metallic implants, or other contraindications to MRI. Bone scintigraphy is highly sensitive for the detection of fractures, but exact localization of scintigraphic lesions may be difficult and can negatively affect diagnostic accuracy. ⋯ Image fusion of planar bone scintigrams and radiographs has a significant influence on image interpretation and increases both diagnostic confidence and interobserver agreement.
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The functional mechanism of lung mosaic computed tomography attenuation (MCA) in pulmonary vascular disease (PVD) and obstructive airway disease (OAD) has not yet been fully clarified. ⋯ Although further validation is required, our results indicate that heterogeneous pulmonary arterial perfusion may be a dominant mechanism of MCA in PVD and OAD.