To analyze the benefit of a departmental IT group in comparison to support by hospital IT groups or system manufacturers in a completely digitized radiological department. The departmental IT group comprises a fulltime IT specialist, two student assistants and four clinical employees participating 1 day/week. For 18 months IT problems were quantified and specified according to urgency, responsibility and affected system by use of an intranet-based reporting system. For each IT service provider the performance and duration of problem solution was evaluated. In 18 months 3,234 IT problems emerged. 88.7% were solved by the departmental IT group. In 474 cases (14.7%) a solution within 2 h was required. The departmental IT group solved 35.8% within 30 min, system manufacturers needed 18 h 38 min in mean. The departmental IT group solved 90.2% of the problems within a time limit. System manufacturers met the limit in 60.1% with a mean duration of 7 days 21 h. In 6.7% of the cases, support by system manufacturers was indispensable. A considerable proportion of IT problems in completely digitized radiological departments can be solved by a departmental IT group, providing a fast and cost-efficient first-level IT support with effective prevention of major breaks in the workflow. In a small number of cases support by system manufacturers remains necessary.
Hard disk arrays are specifically suited as departmental intermediate storage media because they allow fast access to current and previous examinations within a short time. Performance properties enable both MOD and TAPE systems to serve as long-term archives. However, MOD archives are less flexible in the expansion of storage capacity and at present the medium costs per memory unit are about 2 - 3 times higher than for tape archives. The use of existing MOD-archives may be adequate as intermediate archives. For new PACS installations or system expansions, however, it is recommended to combine a sufficiently large local data memory (RAID) with data storage on tape archives outside the radiological unit that can be used by other departments as well. Future development of hard disk prices will show whether archiving for the whole data retention period may be handled by RAID systems. In any case, prefetching problems and waiting periods for demanded pre-studies would not occur any more.
Since only PACS RAID provides online image access, at least current imaging of the past 12 months should be available from cache. An accurate prefetching mechanism facilitates effective use of the expensive online cache area. For that, however, close interaction of PACS, RIS, and KIS is an indispensable prerequisite.
Um den Zweck m/~gliehst vollsti/ndig zu erf/illen, ist es w/insehenswerth, dass die Mittheilangen angeben, ob nur der Vater oder die Mutter oder alle beide affieirt waren. Die Zuverl~lssigkeit der a]lgemein angenommenen Meinung: --dass Vliter, welehe behandelt wnrden, 6fter gesunde Kinder prodtleirten ats M(itter, sogar wenn letztere anscheinend geheilt waren --wird alsdann in ausgedehnterer Weise dargethan werden k6nnen.Um beweiskriiftige Nachrichten zu erhalten, reicht es also nicht hin, Kinder aus den unteren Klassen der Bev/ilkerung zu beobachten, welche in den Spit/ilern behandelt wurden, well die individuen dieser Klassen oft ein unregelm~issiges Leben fiihren und sieh den Recidiven aussetzen, und well es deswegen schwierig ist, exactere Sehl(isse aus den Nachfors~hungen zu ziehen. ~ lm Gegensatz hierzu sind die wol~lhabenden Personen, welche zu Hans behandelt wurden, und oft naehher legitime Kinder gehabt haben, leiehter dureh die Aer2te zu controlliren, und kfnnen wir mehr Zutrauen haben, :lass die Beobachtungsresultate hier yon reellem Werthe ffir die Beurtheilung des Einflusses der antisyphilitischen Behandlung auf die Kinder sein werden.An meine Kollegen in allen Liindern und besonders an diejenigen~ welche Privatpraxis ausiiben, babe ieh also die Ehre, meine Bitte xur Sammlung ihrer Beobachtungen zu riehten. Sobald ich Kenntniss yon ihren Verfffentlichungen babe oder ihre Beobaehtungen mir speciell zugesebickt sind, werde ieh dieselben sofort zusammenstellen, um sie ffir eine Vergleichung der Behandlungsmethoden in den versehieffenen Liindern nutzbar zu maehen. . Ueber die ehemisehe Beschalfenheit der Echinoeoecus-H~iute.Vorl/iufige Mittheilung. Von Dr. A. Liieke.Die Mutterblasen yon Echinoeoeeus hominis bestehen aus einer Substanz yon niedrigem Stiekstoffgehalt, deren Reactionen weder mit den leimgebenden noeh mit den Proteink/irpern iibereinstimmen. Am ntichsten steht dieselbe, wie mir versehiedene iibereinstimmende Element~ranalysen ergeben haben, den Chitinen; auch gelang es mir~ die Substanz sowohl dutch Kochen mit verdiinnter, als auch dutch Stehenlassen mit coneentrirter Sehwefelsfiure und Einlragim in heisses Wasser zum Theil in Traubenzucker iiberzuffihren. Traubenzueker scheint auch ein gew6hn~ ]ieher Beslandtheil der Fliissigkeit in Eehinoeoccen-S~ieken zu sein, welche ans der Leber oder deren Umgebung stammen.
Technological progress and the rising cost pressure on the healthcare system have led to a drastic change in the work environment of radiologists today. The pervasive demand for workflow optimization and increased efficiency of its activities raises the question of whether by employment of electronic systems, such as RIS and PACS, the potentials of digital technology are sufficiently used to fulfil this demand. This report describes the tasks and structures in radiology departments, which so far are only insufficiently supported by commercially available electronic systems but are nevertheless substantial. We developed and employed a web-based, integrated workplace system, which simplifies many daily tasks of departmental organization and administration apart from well-established tasks of documentation. Furthermore, we analyzed the effects exerted on departmental workflow by employment of this system for 3 years.
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