PubMed · 4505941
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F Pivirotto. [Tracheo-bronchoscopy].. https://pubmed.ncbi.nlm.nih.gov/4505941/
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We used a single-exposure dual-energy subtraction technique with a storage-phosphor computed radiography (CR) system to evaluate various pulmonary diseases. Clinical applications of this method have been studies at our institution. In our experience, the dual-energy subtraction technique provided better visualization of pulmonary nodules, tracheobronchial abnormalities, pulmonary vascular diseases, calcification in a nodule, and rib lesions than conventional CR images did. Single-exposure dual-energy subtraction images were obtained with a sandwich technique using two storage-phosphor imaging plates with a 1-mm-thick copper filter interleaved between the two. The front plate obtains a lower kilovoltage image, whereas the back plate obtains a higher kilovoltage image. We can visualize soft tissue and bone images as well as unsubtracted digital images by the subtraction process.
Inflammatory pseudotumour is an uncommon benign lesion that presents in children and young adults. The rarity of these lesions, particularly at extrapulmonary sites, has resulted in poor documentation of its radiological manifestations. The casenotes, radiology and histology of five patients with inflammatory pseudotumour were reviewed. Two lesions were intra-abdominal, one oesophageal, one intrapulmonary and one lower limb. CT demonstrated inflammatory pseudotumours as well circumscribed masses of soft tissue density producing displacement of surrounding structures rather than local invasion. Sonography depicted these lesions as well defined masses with homogeneous echo patterns. Surgical removal resulted in dramatic symptomatic improvement.
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