Browsing by Author "Soyer, Hans Peter"
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- ItemTeledermatopathology: a controlled study about diagnostic validity and technical requirements for digital transmission.(2006-10-02) Leinweber, Bernd; Massone, Cesare; Kodama, Kazuo; Kaddu, Steven; Cerroni, Lorenzo; Haas, Josef; Gabler, Gerald; Soyer, Hans Peter; Kerl, Helmut; Smolle, JosefTelepathology is the practice of diagnostic histopathology performed on digital pictures In this study we focused on the technical requirements for achievement of a correct diagnosis on digital histopathologic images A collection of 560 melanocytic lesions was selected from the files of the Department of Dermatology Medical University of Graz Austria From each lesion one histologic slide was completely digitally scanned with a robotic microscope Digital pictures were reviewed by 4 dermatopathologists using a presentation program which recorded the number of image calls applied magnifications overall time needed and amount of transmitted bits during the digital sign out One month later the 4 microscopists had to review the corresponding slides and render a direct diagnosis on each case Telepathologic diagnoses corresponded with the original diagnoses in a range from 90 4 to 96 4 of cases kappa 0 80 to 0 93 P Under 0 001 The median time needed for achievement of a diagnosis was 22 seconds and was significantly higher for melanomas compared with nevi The median transmission effort for each diagnosis was 510 kilobytes after JPEG compression Using an ISDN line with a transmission capacity of 64 kilobits second this correlates to a transmission time of about 1 minute Our results demonstrate that correct reporting on digital histopathologic images is possible with only a little time exposure For an adequately fast transmission ISDN lines are suffcient after JPEG compression
- ItemTelemedicine and teledermatology: Past, present and future.(2008-02-11) Wurm, Elisabeth M T; Hofmann-Wellenhof, Rainer; Wurm, Robert; Soyer, Hans PeterTelemedicine is an emerging field within medicine with potential to revolutionize the delivery of health care It is defined as the use of telecommunication technologies to transfer medical information Teledermatology is a category of telemedicine Early experiments were already made at the beginning of the 20 th century the breakthrough happened in the nineties because of the rapid progress of telecommunication technology The latest advance is mobile telemedicine which is characterized by the use of mobile devices such as mobile phone and PDA personal digital assistant Advantages of telemedicine are the possibility of remote patient care as well as the easy and fast access to expert opinions and education This can either happen through exchange of previously stored data images store and forward method or in real time Since our society is increasingly becoming interconnected via technical advances it is essential that medicine also has an objective understanding of the topic