Praxis
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Computed tomography (CT) is one of the most commonly performed imaging modalities in radiology. This is mainly the result of wide availability, robustness, and fast image acquisition. However, CT is associated with ionizing radiation to the patients. ⋯ These include automated attenuation-based tube current modulation and automated selection of the tube voltage. In addition, iterative reconstruction techniques allow for a dramatic decrease in radiation dose while image quality can be maintained. Using all these techniques, it has become possible to perform a diagnostic CT examination of the lungs with a radiation dose that is comparable to that of a conventional chest X-ray.
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Case Reports
[Aseptic bone flap osteonecrosis following cranioplasty after decompressive cranietomy].
This case report discusses a case of aseptic osteonecrosis in a cranioplasty bone flap after decompressive craniectomy, which is a known, but rare complication after autologous cranioplasty. We suggest that the pathophysiology of cranial bone flap necrosis may have a similar pathophysiology to free flap necrosis/failure. The key suggested problem causing the osteonecrosis is vessel thrombosis within the smaller vessels of the bone flap due to the prothrombotic effects of the factors released during drilling of the bone flap. Suspicious local findings like wound dehiscence or fluid leakage should lead to a head computed tomography in order to discuss a prophylactic artificial second cranioplasty if necessary.