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At least 721 records · Page 40Linked to original sources
PubMed1997

A referrer and patient evaluation of a telepsychiatry consultation-liaison service in South Australia.

A study was carried out to describe the patient population assessed by a telepsychiatry consultation-liaison service in rural South Australia, and to assess the referrers' and patients' satisfaction rating with this service. The study was performed in two parts, with retrospective and prospective components. The author completed a semi-structured interview for each patient (n = 75) with a Brief Psychiatric Rating Scale (BPRS) for the prospective group (n = 32). A questionnaire was also sent to all referrers seeking an evaluation of the usefulness of the telepsychiatry interview in terms of assessment and management recommendations and outcome. Patients from the prospective group were sent a questionnaire examining their evaluation of the usefulness of the interview in terms of assessment and management recommendations, and difficulties with the technology. The patient population was characterized by high rates of affective disorder and personality disorder, and high indices of developmental disturbance. Referrers reported high rates of satisfaction with the service. Nursing staff rated the service more positively than general practitioners. The usefulness for assessment was rated more highly than for management.

Evaluation Studies as Topic↗
PubMed1998

Prototype Internet consultation system for radiologists.

The overall purpose of this study is to develop a prototype radiological consultation system. We concentrate our work on prototype software environment for the system. The system provides a second diagnostic opinion based on similar cases, incorporating the experience of radiologists, their diagnostic rules and a database of previous cases. The system allows a radiologist to enter the description of a particular case using the lexicon such as BI-RADS of American College of Radiology and retrieve the second diagnostic opinion (probable diagnosis) for a given case. The system also allows a radiologist to get other important information too. These advances are based on a new computational intelligence technique and first-order logic. We implemented a rule-based prototype diagnostic system. Two experimental Internet versions are currently available on the web and are under testing and evaluation of design. The diagnosis is based on the opinions of radiologists in combination with the statistically significant diagnostic rules extracted from the available database.

Breast Diseases↗
PubMedDate not supplied

[Possibilities of using telemedicine in preoperative examination of the lens nucleus density].

The MPEG-4 algorithm applicable to compression of video-images of the anterior eye segment and JPEG-2000 applicable to compression of static images of the lens and retina under the conditions of mydriasis were used to enable the telemedicine consultations. The compiled compression files were sent to the institute's E-Mail address by means of a voice modem through an analogue telephone line. The pixel structures of non-compression and compression images of the anterior eye segment and lenses were comparatively studied. The deviations of images' optic density versus non-compression images were found to be below or equal to 2.7%, thus, they can be attributed to a static error. The quantitative colorimetry of images was used, on the basis of a software-based color-regulating filter, to determine the lens-nucleus density and cataract-maturity degree. The differences between values of the green-canal brightness were found within the RGB model before and after the application of the filter in the posterior cortical strata and in the anterior lens-nucleus portion, which provided for classifying 6 stages of the lens-nucleus density and cataract maturity.

Algorithms↗
PubMed2005

[Use of telepathology to provide rapid diagnosis of neurosurgical specimens].

To determine whether still digital images of neurosurgical specimens sent by e-mail are an effective and safe way of obtaining an emergency pathological diagnosis, representative images from 48 neurosurgical smear specimens were digitized, compressed and sent by electronic mail to our consultant neuropathologist with relevant clinical and radiological information. The time to select, digitize, compress and send the images for each case was recorded. Comparison was made between diagnosis made from digital images (DI) and historical smear (HS) using the original permanent section (PS) diagnosis as the gold standard. A diagnosis of normal vs. abnormal, neoplastic vs. non-neoplastic, primary vs. secondary and tumor grade was made in each case. The mean time for selection and digitalization of each case was 9.51 minutes. The number of correct pathological diagnosis was 41/48 using DI and 48/48 using HS, giving an accuracy rate of 85.4% and 100% respectively. DI was 100% sensitive in recognizing neoplastic tissue but only 98% specific. Most inaccuracies were in grading and caused by problems with field selection and familiarity with the technique. We conclude that static digital images are reliable and safe method of interpreting tissue during neurosurgical procedures. This corresponds with the findings of previous studies.

Brain Neoplasms↗
PubMed1997

Providing psychiatric backup to family physicians by telephone.

OBJECTIVE: To examine whether links between psychiatric services and family physicians can be strengthened and additional support provided for family physicians if a psychiatrist is available by phone to respond to clinical calls from family physicians. METHOD: A psychiatrist, who visited 18 family physicians in 5 practices on a regular basis to provide clinical consultations, was available to provide telephone backup concerning mental health problems the family physicians encountered. All calls received by the psychiatrist were documented and analysed at the end of a 12-month period. RESULTS: Over the course of one year, 128 calls were received from the 5 practices. Fifty were considered urgent, while 78 involved more routine management or medication issues. Telephone advice enabled the family physicians to handle these cases more effectively, often reducing utilization of other mental health services and providing support that was not otherwise available. The average time spent per call was 8 minutes, which meant the psychiatrist was only spending 20 minutes per week on the phone responding to family physicians' requests. CONCLUSION: Providing telephone backup to family physicians is a time-efficient and effective method of supporting family physicians and reducing utilization of mental health services. It is applicable to psychiatrists working in any clinical setting.

Cooperative Behavior↗
PubMed2005

The Internet and the menopause consultation: menopause management in the third millennium.

The Internet was born in 1969; it was originally developed so that computers could share information on research and development in the scientific and military fields. The original Internet consisted of four university computers networked in the United States. Email became available two years later. The infant Internet initially required complex computing knowledge to be used. However, this was all to change with the development of the World Wide Web in the early 1990s, which made the Internet much more widely accessible. The Internet has since grown at a phenomenal rate and has evolved into a global communications tool. It is by nature anarchic, in that it is an unrestricted broadcast medium. Although this lack of censorship is a strength, it is also a weakness. The quality of information available on the Web is variable and discernment is required. With the growth of e-health, medicine and its allied specialties are faced with the challenges of providing their services in a novel way while maintaining the first principle of medicine, primum non nocere (first, do no harm). This provision of e-health care is in its infancy and this review explores issues arising from the use of the Internet as a medium for organizing menopausal health care in the third millennium.

Female↗
PubMed2006

Patients' perceptions of joint teleconsultations: a qualitative evaluation.

OBJECTIVE: To determine patient perceptions of joint teleconsultations (JTC), with particular reference to reasons underlying, and factors contributing to, patient satisfaction and dissatisfaction with this mode of health delivery. BACKGROUND: Telemedicine has been welcomed as one way of improving health-care delivery, by improving patient access to secondary care and specialist services hence widening patient choice, particularly for patients outside major conurbations. However, a recent systematic review found currently available data on patient satisfaction with telemedicine to be methodologically flawed. Qualitative evaluations offer the opportunity to elucidate the details of patient satisfaction with this mode of health-care delivery. DESIGN: Qualitative study using semi-structured interviews. SETTING AND PARTICIPANTS: Purposive sample of 28 participants of a major randomized controlled trial (Virtual Outreach study) of JTC conducted in one urban and one rural area in Britain. INTERVENTION: Joint teleconferenced consultations with the patient, patient's general practitioner (GP), and a hospital specialist. The patient and GP were sited in the local practice, while the hospital specialist was in the hospital outpatient department, and the two parties were connected by an ISDN2 link and video-conferencing software. MAIN OUTCOME MEASURES: Patient experiences of JTC, with particular reference to reasons underlying, and factors contributing to, overall satisfaction or dissatisfaction. RESULTS: Two major themes were identified: customer care and doctor-patient interaction. Patients appreciated the customer care aspects of JTC, particularly the enhanced convenience, reduced costs and improved punctuality associated with JTC. However, there were divergent views about the doctor-patient interactions with some patients expressing a sense of alienation arising from the use of technology, and problems with doctor-patient communication. CONCLUSIONS: These data add significantly to the existing literature on patient satisfaction with telemedicine, by elucidating the factors underlying overall satisfaction scores and hence have implications for future service delivery and implementation of telemedicine.

England↗
PubMed2006

Client acceptability and quality of life--telepsychiatry compared to in-person consultation.

We evaluated client satisfaction and one-month mental health outcomes for telepsychiatry clients compared with those undergoing a face-to-face psychiatric consultation. Clients were asked to complete an SF-12 health survey before the consultation, a satisfaction survey after the consultation, and were contacted for a one-month follow-up SF-12 survey by telephone. Forty-eight of the 62 initial responders (77%) were available for contact by telephone after one month. Telepsychiatry clients demonstrated significant improvements on pre- and post-SF-12 mental health measures (t = 3.7; P = 0.001), while there was no change for the in-person group (t = 1.0; P = 0.35). Telepsychiatry clients felt that they could present the same information as in person (93%), were satisfied with their session (96%), and were comfortable in their ability to talk (85%); this was similar to the in-person clients. They reflected slightly lower levels of satisfaction regarding feeling supported and encouraged than did the in-person clients. Both telepsychiatry clients and traditional face-to-face psychiatry clients were satisfied with their experience of mental health care service provision, and mental health improvements were evident in the telepsychiatry patients.

Adolescent↗
PubMed2006

A paradigm for facilitating pharmacotherapy at a distance: sertraline treatment of the night eating syndrome.

OBJECTIVE: To test a novel method of facilitating pharmacotherapy at a distance and assess the effectiveness of sertraline for the treatment of night eating syndrome (NES). METHOD: The effectiveness of the selective serotonin reuptake inhibitor sertraline in the treatment of NES was assessed at a distance. NES is characterized by a delay in the circadian rhythm of food intake, with evening hyperphagia and/or nighttime awakenings and ingestions. Persons who contacted us through our Web site, e-mail, or telephone for help with their NES completed a Night Eating Questionnaire and received a semistructured interview (Night Eating Syndrome History and Inventory) to determine the presence of NES. Fifty such persons received treatment with sertraline from their own physicians, to whom we offered consultation. Participants completed questionnaires every 2 weeks for 8 weeks and received a final telephone interview to assess their progress. Outcomes were compared with those from an earlier face-to-face open-label trial of sertraline. The study was conducted from September 2003 to May 2005. RESULTS: Both the questionnaires and interviews showed improvements in 5 key aspects of NES: the general Night Eating Symptom Scale, evening hyperphagia, nighttime awakenings, nocturnal ingestions, and the Beck Depression Inventory (all p < .001), and the mean body weight of the 41 overweight and obese subjects, reported by survey, fell 3.0 kg (p = .01). These results are similar to those obtained in an earlier face-to-face trial of sertraline with NES. CONCLUSION: The study confirmed the effectiveness of sertraline in the treatment of NES and introduced a paradigm for facilitating pharmaco-therapy at a distance.

Body Weight↗
PubMed2005

Teleneurology.

Teleneurology enables neurology to be practised when the doctor and patient are not present in the same place, and possibly not at the same time. The two main techniques are: (1) videoconferencing, which enables communication between a doctor and a patient who are in different places at the same time (often called realtime or synchronous), and (2) email, where the consultation is carried out without the patient being present, at a time convenient to the doctors involved (asynchronous or store-and-forward teleneurology). Some problems that can be solved by teleneurology include: (1) patients admitted to hospital with acute neurological symptoms rarely see a neurologist; (2) delayed treatment for acute stroke; (3) non-optimum management of epilepsy; (4) unproductive travel time for neurologists; (5) extremely poor access to a neurologist for doctors in the developing world; (6) long waiting times to see a neurologist. Neurology is a specialty that, because of the emphasis on accurate interpretation of a history, does lend itself to telemedicine. It has been a late starter in realizing the benefits of telemedicine and most of the publications on teleneurology have been in the last five years. Its uptake within the neurological community is low but increasing. Telemedicine requires a significant change in how neurologists practise. The evidence to date is that teleneurology can narrow the gap between patients with neurological disease and the doctors who are trained to look after them.

Electronic Mail↗
PubMed2003

Image quality issues in a static image-based telepathology consultation practice.

Field selection and image quality have often been identified as impediments in the successful employment of static-image telepathology. One thousand seven hundred fifty-three electronic consultations using static images were performed at the Department of Telemedicine, Armed Forces Institute of Pathology (AFIP) between November 1994 and September 2001, with 98.3% receiving a telepathology diagnosis. In 47.9% of cases, imagery was considered good by AFIP consultants, 38.5% were considered adequate, and 14.6% of cases were considered to have poor-quality imagery. Deficiencies in image quality were recorded for each case. Cases with imagery rated as good averaged significantly fewer deficiencies per case (0.45, range: 0 to 3) than cases with imagery rated adequate (0.95, range: 0 to 6) or poor (2.4, range: 0 to 7). Deficiencies in focus were most commonly identified in this series of cases (28.1%), followed by improper white balancing of the capture device (14.1%) and inadequate resolution (10%). Cases in which images were of inadequate resolution showed an increased likelihood for discordance between the telepathology diagnosis and the diagnosis rendered on follow-up material ("truth diagnosis"). Inadequate field selection, although only cited in 6.7% of cases overall, was seen with a significantly higher frequency in cases in which there was discordance between the telepathology and truth diagnosis. A review of common image deficiencies in static-image telepathology and possible causes is presented.

Diagnostic Errors↗
PubMed2003

[Telecommunication and telepathology in orthopedic oncology. Possibilities in diagnosis and therapy of primary malignant bone tumors].

The rareness of primary malignant bone tumors and the difficulty of differential diagnosis make this field a part of oncology in which the consulting physician must rely on consistent histopathological monitoring of highest quality throughout the diagnostic and therapeutic process. In a pilot project of the Department of Bone Pathology of the University of Hamburg and the Orthopedic Department of the University of Heidelberg, 190 cases of suspected primary bone tumor were the subject of interdisciplinary discussion between July 2001 and March 2003 using a telepathology system established for this purpose. Diligent differential diagnoses were made prior to the biopsy; optimal location and further strategy for the biopsy were discussed and determined according to the guidelines of the international bone tumor centers. This also included the decision if intraoperative pathological examination of frozen sections should be performed. In 51 cases such examinations were performed. Those results immediately influenced the surgical procedure. Telepathology performed as described in this article led to a close interdisciplinary cooperation over a large distance and helped significantly to optimize therapy of patients with malignant bone tumors.

Biopsy↗
PubMed1997

Reliability of dermatology teleconsultations with the use of teleconferencing technology.

BACKGROUND: Recent advances in telecommunications technology allow physicians to consult on patients at a distance via an interactive video format. Few data exist as to the reliability of this form of consultation. OBJECTIVE: Our purpose was to measure the degree of concordance between a dermatologist seeing a patient in a clinic and another dermatologist seeing the same patient over a commercially available videoconferencing system. METHODS: Patients referred to a general dermatology clinic were seen by both a "live" dermatologist and a "teledermatologist" via a T1 connection. Diagnosis and recommendations were recorded by both physicians and compared. The physicians were also asked to rate the degree of confidence they had in their diagnosis. RESULTS: Seventy-nine diagnoses were made on 60 patients. The two physicians were in absolute agreement on 61 of the diagnoses (77.2%). Race or sex of the patient, nature of the skin problems, or which of the two physicians was the teledermatologist did not statistically correlate with the concordance of the two physicians. CONCLUSION: There was a reasonable degree of agreement between the two examining physicians. Despite the relatively high degree of concordance the teledermatologist had a significantly lower degree of confidence in his diagnoses.

Adolescent↗
PubMed2006

Tele-virtual sonography.

OBJECTIVES: 3D-Ultrasound reconstruction, routinely available since 1994, has brought new technical capabilities such as virtual sonography that can be tele-consulted. Our experience is summarized in the present paper. METHODS: During one year, 73 3D-US volumetric images coming from 34 patients were acquired and 68 were consulted at distance. Acquisitions were carried out through an existing 2D device adding a magnetic tracking system on the US-probe. Probe positioning and video output was introduced into a PC running software that allows the generation of 2D-orthogonal and 3D volume images, as well as tele-consultation. Several image analysis techniques for 3D-reconstruction were evaluated. RESULTS: Final volumes were small (1.5 Mb) and required about 4+/-2 min to be transmitted over one ISDN channel (64 Kbs). Good correlation (k = 0.7) was found between local and distant diagnoses. In 30%, images were considered of low quality and in 29% of good quality; diagnosis could be done with confidence in all except 7 cases. Virtual sonography, by means of oblique cuts in all space directions, improved distant diagnostic confidence. Limitations were linked to incomplete sampling due to the short acquisition time periods (26 s) and difficulties on hand-free probe movement. 3D reconstructions were time consuming (20 min to 4 h) and of limited indication. CONCLUSIONS: 3D reconstruction could reduce multiple explorations due to image constrains such as suboptimal fetal positioning, among others. Virtual sonography was important to reach confidence on distant diagnosis; it was also considered a tool for off-line local review of non-trained sonographer acquisitions.

Female↗
PubMed2002

A cost-minimization analysis of orthopaedic consultations using videoconferencing in comparison with conventional consulting.

We compared the costs of conventional outpatient visits to the surgical department of the University Hospital of Oulu with those of videoconferencing between the primary care centre in Pyhäjärvi and the University Hospital (separated by 160 km). The cost data were obtained from a randomized controlled trial that included 145 first-admission and follow-up orthopaedic patients. In the telemedicine group the annual fixed costs were 6074 in the hospital and 3910 in the primary care centre. The additional variable costs were 2 in the hospital and 19 in primary care. At a workload of 100 patients, the total cost, including travel and indirect costs, was 87.8 per patient in the telemedicine group and 114.0 per patient in the conventional group (i.e. a total cost saving from the use of teleconsultation of 2620). A cost-minimization analysis showed that telemedicine was less costly for society than conventional care at a workload of more than 80 patients per year. If the distance to specialist care were reduced from 160 km to 80 km, the break-even point increased to about 200 patients per year. Wider utilization of the videoconferencing equipment for other purposes, or the use of less expensive videoconferencing equipment, would make services cost saving even at relatively short distances. The study showed that orthopaedic outpatient telecare can be cost minimizing.

Costs and Cost Analysis↗
PubMed1998

Web based 3-D medical image visualization on the PC.

With the recent advance of Web and its associated technologies, information sharing on distribute computing environments has gained a great amount of attention from many researchers in many application areas, such as medicine, engineering, and business. One basic requirement of distributed medical consultation systems is that geographically dispersed, disparate participants are allowed to exchange information readily with each other. Such software also needs to be supported on a broad range of computer platforms to increase the softwares accessibility. In this paper, the development of world-wide-web based medical consultation system for radiology imaging is addressed to provide platform independence and greater accessibility. The system supports sharing of 3-dimensional objects. We use VRML (Virtual Reality Modeling Language), which is the defacto standard in 3-D modeling on the Web. 3-D objects are reconstructed from CT or MRI volume data using a VRML format, which can be viewed and manipulated easily in Web-browsers with a VRML plug-in. A Marching cubes method is used in the transformation of scanned volume data sets to polygonal surfaces of VRML. A decimation algorithm is adopted to reduce the number of meshes in the resulting VRML file. 3-D volume data are often very large in size, hence loading the data on PC level computers requires a significant reduction of the size of the data, while minimizing the loss of the original shape information. This is also important to decrease network delays. A prototype system has been implemented (http://cybernet5.snu.ac.kr/-cyber/mrivrml .html), and several sessions of experiments are carried out.

Algorithms↗
PubMed2000

International transmission of tele-ophthalmology images.

Tele-ophthalmic consultations were conducted between a hospital in East Java, Indonesia, and an ophthalmology centre in Perth, Western Australia. Twenty-two eyes of 14 subjects were screened for glaucoma using a hand-held fundus camera. Optic disc images comprised 267 x 234 pixels at 24 bit/pixel (187 kByte). The images were compressed and stored together with patient information on a laptop computer. The images were then transmitted to Perth using either a mobile phone or a satellite phone, taking 170 s or 240 s, respectively. Images were also compressed to five different compression levels before transmission. At a compression ratio of 1:5, the images were 36 kByte in size and took 29 s to transmit by mobile phone and 60 s by satellite phone. To measure the loss of quality, the root mean square error was calculated for each colour component, comparing the transmitted and original images. The coefficients of variation were 10% (green), 15% (blue) and 22% (red). The images received in Perth were considered to be of excellent quality and readily interpreted by ophthalmologists in terms of the likely presence of glaucoma.

Glaucoma↗
PubMed1999

Using IP-videoconferencing systems in a surgery consulting.

In this paper we describe how to use IP-videoconferencing systems in medical surgery consulting. We started to think about how we could use special doctor's services without patients having to travel a long way. The answer to this question is that the information goes from one place to another, not the patient. First we had a pilot project, where we used the 3xISDN transmission rate and now we are using ATM. We have here in Satakunta a local area network between our Satakunta Central Hospital and the Health Care Center in Noormarkku and Kankaanpää, so we have very good environment to do this kind of research. Our network is quite fast, we can use the 10 Mbps bitrate and in this network there are no other activities in this moment, so there are not any interferences. There is a surgery specialist in the hospital and a doctor in the health care center with a patient. The specialist looks at the monitor, where there is a videopicture of the patient from the health care center. Then the specialist makes the treatment plan for the patient.

Adolescent↗