Radiology reports can now be analysed using sophisticated natural language-processing techniques. Semantic text analysis is backed by terminology of a radiological lexicon. The search engine includes results for synonyms, abbreviations and compositions. Key images are automatically extracted from radiology reports and fetched from PACS. Such systems help to find diagnoses, improve report quality and save time.

Purpose: Comparison of radiation dose of cone beam computed tomography (CBCT) and multidetector computed tomography (MDCT) in examinations of the hand. Materials and Methods: Dose calculations were carried out by means of Monte Carlo simulations in MDCT and CBCT. A corpse hand was examined in a 320-row MDCT scanner and a dedicated extremities CBCT scanner with standard protocols and multiple low-dose protocols. The image quality of the examinations was evaluated by 5 investigators using a Likert scale from 1 (very good) to 5 (very poor) regarding depiction of cortical bone, cancellous bone, joint surfaces, soft tissues and artifacts. For a sum of ratings of all structures

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Radiological image and data archives contain huge amounts of data which are barely utilized by current technologies. In the future semantic technologies currently under development will enable analysis of the contents not only on the level of individual patients but also along entire data collections thereby resulting in new applications that will benefit routine clinical practice, teaching activities and research. As a prerequisite the development of software for semantic analysis of image and report contents is necessary, i.e. an "understanding" of the contents by the software. Based on specific ontologies, standardized protocols and semantic image annotation new systems will be developed that make the content of these data archives accessible and support diagnosis, quality assurance, innovative research applications and last not least, the merging of data of different medical disciplines, such as radiology, pathology and clinical chemistry.

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