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At least 793 records · Page 44Linked to original sources
PubMed2007

Prospectively assessed incidence, severity, and determinants of respiratory symptoms in the first year of life.

Respiratory symptoms are common in infancy. Nevertheless, few prospective birth cohort studies have studied the epidemiology of respiratory symptoms in normal infants. The aim of this study was to prospectively obtain reliable data on incidence, severity, and determinants of common respiratory symptoms (including cough and wheeze) in normal infants and to determine factors associated with these symptoms. In a prospective population-based birth cohort, we assessed respiratory symptoms during the first year of life by weekly phone calls to the mothers. Poisson regression was used to examine the association between symptoms and various risk factors. In the first year of life, respiratory symptoms occurred in 181/195 infants (93%), more severe symptoms in 89 (46%). The average infant had respiratory symptoms for 4 weeks and 90% had symptoms for less than 12 weeks (range 0 to 23). Male sex, higher birth weight, maternal asthma, having older siblings and nursery care were associated with more, maternal hay fever with fewer respiratory symptoms. The association with prenatal maternal smoking decreased with time since birth. This study provides reliable data on the frequency of cough and wheeze during the first year of life in healthy infants; this may help in the interpretation of published hospital and community-based studies. The apparently reduced risk in children of mothers with hayfever but no asthma, and the decreasing effect of prenatal smoke exposure over time illustrate the complexity of respiratory pathology in the first year of life.

Asthma↗
PubMedDate not supplied

Web-based telemicroscopy.

By taking advantage of network-based computing and the recent developments in Web interfaces, centralized research facilities housing specialized and unique imaging instruments along with associated high-performance computing can be made available to researchers for use from their own laboratories. In addition to increasing access and utilization of these facilities, operation over the Internet is expected to enhance research by facilitating collaboration between researchers. We describe the implementation of a platform-independent Web-based system written in Java that supplements automated functions with video-guided interactive, collaborative remote control and data acquisition from an intermediate-high-voltage electron microscope.

Academies and Institutes↗
PubMed1996

A primary care application of an integrated computer-based pharmacy system.

Primary care demands a continuous flow of current pharmaceutical information to the front lines of patient services. With a wide spectrum of drugs to prescribe and a continuous production of new drug-related information, the practicing physician is faced with a social and professional mandate to deliver the most acceptable drug in a safe and efficacious manner. The legal implications of this product and knowledge explosion have exposed the human brain's inability to store, update, and recall what is currently available. Physicians can no longer trust their memory or their paper-based medical record to protect them from potential liability. The tools to correct this mental imbalance are now available and it should be standard practice to implement a sophisticated computer-based pharmacy system (CBPS) for every outpatient in the United States.

Clinical Pharmacy Information Systems↗
PubMed2001

Simple and low-cost tele-nuclear medicine conference system with the e-mail protocol.

PURPOSE: Because of the recent innovative growth in computer technology, digital imaging, and the Internet, we can take advantage of these facilities for education and clinical work in nuclear medicine. We developed a tele-nuclear medicine conference system with electronic mail (e-mail) on the Internet. METHODS: Twenty-one physicians (20 radiologists, 1 neurologist), 6 technologists and 2 medical students in six university hospitals (Japan 5, Canada 1), 5 local hospitals in Japan participated in this project. We used digital still cameras (330 k pixels) equipped with a floppy disk drive and 10 x optical zoom to digitize images with JPEG compression (640 x 480 matrix). The images were attached to e-mail messages (containing a brief description of each case). The mail was sent simultaneously to all members on the mailing list. Scintigram and SPECT images as well as other radiological images were sent by e-mail. Reply mails about each case were sent to all members via the mailing list. RESULTS: During a period of 6 months, 18 cases (tumor/infection: 7, bone: 6, cardiovascular: 1, neurology; 3, endocrine: 1) with 144 e-mails (average 5.6/case) were submitted to the conference. The average period of discussion was 15.6 days. The number of attached images was 1 to 9 (average, 4.2/e-mails). JPEG compression rate was 1/10 to 1/20. The quality of the images was good enough for discussion. Some cases required additional images for further discussion. CONCLUSION: Our tele-nuclear medicine conference with an electronic mailing list and digital camera was simple and low-cost. The conference system was useful for education and clinical work.

Canada↗
PubMed1998

MR teleradiology network serving remote imaging centers.

The operational experience of a commercial teleradiology practice utilizing a wide-area ISDN network linking six imaging centers located in two states will be reviewed. Open magnet designs were chosen to complement existing high-field units available in each community. Image data was first acquired than transmitted without compression at 128 Kbytes/s to a central reading site located in McLean, Virginia for interpretation by a team of radiologists. Average transmission time was 6-8 minutes. System design allows optimal utilization of radiologists expertise in imaging interpretation while reserving the on-site patient management responsibilities such as gadolinium contrast injections and sedation to a nonradiologists physician and/or nurse practitioner. Over 15,000 teleradiology readings have been rendered via this network by January 1998.

Adult↗
PubMed1998

An ISDN-based telemedicine system.

Our preliminary results show the telemedicine system is successful. It does fulfill the 3 goals we set earlier. However, for such a system to be cost effective, the communication cost need to be cut further. In fact, video is not required at all time. We are hoping to establish criteria and operational procedure for use of video. Also some sort of standard should be set up for evaluation of the quality of telemedicine.

Costs and Cost Analysis↗
PubMed2000

A comparison of two methods of analog-to-digital medical video conversion.

The purpose of this study was to compare 2 methods of analog-to-digital video conversion in anticipation of improving, refining, and standardizing digital video production for medical education, diagnosis support, and telemedicine. A video workstation was devised containing 2 analog-to-digital video conversion systems: a digital video media converter with fire wire card and a video capture card. A procedure for final digital video production was created that used equivalent compression, pixel resolution, frame rate, and data rate for both systems. A subjective test was performed in which 12 archived analog videotapes, consisting of magnetic resonance angiograms, ultrasounds, neurosurgeries, and telemedicine applications, were converted digitally using the 2 methods. Randomized side by side video comparisons were analyzed and rated by subjective quality. An objective test was performed by videotaping a gray-scale test pattern off a computer monitor, digitally converting it by the 2 methods, and comparing the gray-scale values to the original pattern. There was no significant difference in overall video quality (P = .31) or grayscale reproduction using the 2 methods of analog-to-digital conversion. When performing simple analog-to-digital video conversion, a video capture card is equal in quality and costs less than a digital video (DV) media converter or fire wire card. If a digital video camera is available for use, then a DV media converter or fire wire card is more advantageous because it enables full operation of the digital video camera.

Analog-Digital Conversion↗
PubMed1997

Teleradiology for remote diagnosis: a prospective multi-year evaluation.

Teleradiology has been used for nearly 3 years at our institution to provide urgent radiologic interpretations for two outpatient clinics and an affiliated hospital. The purpose of this study was to evaluate the clinical reliability of the existing system. Teleradiology images were interpreted using 1600 x 1200 pixel display stations. The original films from the same cases were subsequently interpreted, usually by another radiologist. The initial and final interpretations were compared. Discrepancies were rated and adjudicated by another senior radiologist. These data were compared to peer review interobserver discrepancy rates. Among the 2688 teleradiology examinations evaluated, there were major discrepancies in 31 (1.5%). In three instances teleradiology rather than film interpretation was considered correct. Abnormalities missed on teleradiology were apparent in all but two at adjudication. Among the 628 peer-review cases, there were 6 (0.96%) major discrepancies. Major teleradiology discrepancy rates are statistically similar to film-based peer review discrepancy rates. Teleradiology is suitable for providing radiologic services to remote medical facilities.

Evaluation Studies as Topic↗
PubMed1999

Teleradiology in the operating room of the future.

Recent advances in magnetic resonance imaging (MRI) are rapidly making this modality the imaging method of choice for image-guided neurosurgical operations. However, to be ready for its prime time in the operating room (OR), utilization of MRI in the OR requires development of better techniques for image-guided navigation, as well as interactive real-time teleradiologic methods that will allow tele-collaboration between the surgeon and the radiologist. This presentation describes our work in progress toward achievement of teleradiology in the OR.

Computer Systems↗
PubMed1999

Teleradiology: technology and practice.

Teleradiology increases the ability of radiologists to provide service to remote and underserved locations as well as coverage at times when direct reading of images is not possible. Good practices for teleradiology are described in the American College of Radiology (ACR) teleradiology standard. Teleradiology equipment is converging with picture archiving and communications systems (PACS) equipment so that diagnostic interpretation from remote locations is possible. Image capture can be directly from digital modalities or by film scanner. Transmission speed is still an issue. High transmission speeds were difficult to achieve but recent improvements may increase speeds and decrease costs.

Costs and Cost Analysis↗
PubMed2003

[The art of medicine].

Not too long ago, obtaining a patient's history and performing a physical examination was the beginning of every doctor-patient interaction. Today, impressing technical methods--extending the human "diagnostic horizon" to an unbelievable level of astonishing perception--are easily available in most places. So the question comes up whether clinical findings still have relevance in common medical practice. This article critically discusses the value of apparently "established" clinical signs, but also points out why taking a precise patient's history and performing a skilled physical examination is still essential-today and tomorrow.

Adult↗
PubMed2004

[Telemedicine in the maritime environment--hightech with a fine tradition].

Access to health care always has been one of the most critical issues for offshore crews. Therefore, telemedicine has a long and outstanding tradition in the maritime environment. Since 1931 Cuxhaven medical center (Medico Cuxhaven) operates as a hospital-based radio medical advice center (RMA) for ships worldwide providing one of the first routine telemedical services worldwide. For a long time this task was performed on a honorary basis by the hospital's physicians. In 1994 Germany accepted the IMO/ILO (International Maritime Organisation and International Labour Organisation) solution 164. Therefore, in 1998 a formal contract of the German Ministry of Transport officially installed Medico Cuxhaven as the TMAS Center for Germany. According to IMO/ILO solution 164, the RMA provides an expert level of care 24 h/day, 365 days/year. Cuxhaven hospital is a busy general hospital with departments of anesthesia and intensive care, internal medicine, surgery, gynecology and obstetrics, urology, pediatrics, ENT, radiology, and pain medicine. All physicians directly responding to TMAS calls have practical experience in maritime routine and emergency medicine. All incoming emergency calls are primarily handled by board-certified anesthesiologists, experienced in martime emergency medicine (e. g., staffing coastal SAR helicopters, working on rescue boats, carrying out repatriation services for sailors worldwide). If needed, other medical specialists are included. Today, Medico Cuxhaven takes an average workload of one to two emergency calls (response time < 20 s), two to three follow-up calls and approximately one informative call per day. Since 2000 transmission of digital photos has been used for routine RMA. Recently, a system for online and trenddata telemetry of twelve-lead ECG, NIBP (noninvasive blood pressure measurement), CO(2), SaO(2), pulse and respiration rates including the transmission of video images was developed. This system allows worldwide communications as it is capable of all possible means of telecommunication such as GSM, Inmarsat-ISDN or Iridium-Satellite-Transmission. So far, this system has been installed on board several German SAR rescue boats.However, radio telephone and the simple transmission of digital photography remain the basis of maritime radio medical advice service.

Adult↗
PubMed1998

[Telecommunication in trauma surgery. Communication networks of hospitals in East Bavaria].

The growing complexity of the performance processes in medicine makes it mandatory that the flow of information is faster and more consistent, especially when the sites of health care are far away from each other. The Regensburg model, a realization of lean telemedicine from a low-cost domain, using PC-based standard videoconferencing systems shows the use of modern telecommunications, especially in trauma surgery. In 203 prospectively evaluated teleconsultations between 15 participants a total of 697 images were transmitted via videoconferencing. In 95% of the trauma cases the transmitted material was judged as at least sufficient. In project-attending evaluations the efficacy of these systems and their use were clearly demonstrated. Savings in transportation costs of up to 4,400 DM per case were achieved. Through quicker flow of information quality improvements for all participants resulted; to some extent considerable costs for health care were avoided or reduced. Based on these thoughts, a new platform of communication will be established in Regensburg as a closed medical intranet for the region of eastern Bavaria.

Computer Communication Networks↗
PubMed1998

[Teleconference and telesurgery].

Interchange of information has become possible independent of the user's place or time by modern telemedical services and opens up new dimensions for diagnostic and therapeutic procedures. For teleconferences and teleconsultations in surgery, the intraoperative high-quality transmission of live images is essential without disturbing the sterility and operation routine. The clinical specifications require special systems for broadband, stereoscopic online image transmission both intra- and inter-institutionally. Moreover, a telemedical concept integrates the communication equipment suitable for the different diagnostic and functional facilities of a clinic, a digital multimedia patient record and modules for cooperative working. These implementations are a prerequisite for extensive telesurgical interventions using navigational tools, guided instruments or autonomous roboter systems. The realization of such a comprehensive telesurgical concept (OP 2000) is presented.

Computer Communication Networks↗
PubMed2001

[Evaluation of a telemedicine pilot project].

BACKGROUND AND OBJECTIVE: Rapid progress in computer and information technologies has led to an increased interest in the use of telemedicine during the past few years. Thus it should be clarified, whether teledermatology can achieve comparable results to conventional specialist examination and advice. PATIENTS/METHODS: We initiated a pilot study, comparing teledermatology with conventional examination in a dermatology outpatient setting. 60 patients were included. RESULTS: Out of 60 teledermatological examinations, remote clinicians were in agreement with face-to-face clinicians in 90%. Teledermatology was unable to make a useful diagnosis in 6 patients, however further diagnostic procedures were ordered, enabling teledermatologists to achieve correct diagnoses. Regarding need for further diagnostic tests, there was no difference between teledermatology and conventional examination. CONCLUSIONS: Teledermatology appears suitable to transfer a dermatologist's expertise over large distances.

Dermatology↗