Many telemedicine projects fail to survive beyond the funded research phase. A review of seven Scottish telemedicine services was conducted to identify successes and failures. Qualitative interviews were conducted with key individuals in each project. All projects were partly successful. The main reasons associated with partial failure were: the service was not needs-driven; there was no commitment to provide the service; there was no suitable exit strategy after research funding expired; there was poor communication; there was a lack of training; there were technical problems; work practices were not updated; the protocols for use were poor or non-existent. Based on this, guidelines that might improve the chances of success in future projects were drawn up.

We evaluated an accident and emergency teleconsultation service provided to 14 community hospitals in north-east Scotland. Each community hospital was equipped with a videoconferencing system and a document camera to allow transmission of radiographs. The network used 384 kbit/s ISDN connections. A total of 1392 teleconsultations were recorded during a 12-month study period. Seventy-seven per cent of patients (n = 1072) were managed locally and 23% (n = 320) were transferred to Aberdeen. The majority (95%) of teleconsultations were conducted on weekdays, and 90% of these occurred between the hours of 09:00 and 16:00. The mean delay in contacting a doctor was 9 min and the mean consultation time was 10 min. The majority of patients were suffering from fractures or suspected fractures of the limbs. Radiograph transmission was used in 75% of all teleconsultations. A high degree of satisfaction was recorded by all users of the service.

A systematic review of accident and emergency teleconsultation services was carried out. Studies (English language only) conducted worldwide and published between 1996 and 2003 were included. Evidence relating to technical feasibility, clinical effectiveness, cost effectiveness and level of local management was used as the main outcome measure. Thirty-one studies met the selection criteria. Only two studies were randomized controlled studies. All studies provided evidence that that the service was technically feasible. Of the studies, 97% suggested that the service was clinically effective; 48% (15) of the studies gave figures for the level of local management achieved. The range for local management was 35-100% with a mean of 76%. Only 23% of the studies provided evidence to suggest that the service was cost effective. The case for cost-effectiveness is far from proven and this area of research requires immediate attention if potential users are to be convinced of the value of telemedicine.

Ultrasound recordings were made of 100 consecutive patients attending for obstetric examination in Peterhead and 100 patients attending for non-obstetric examination in Aberdeen. Two identical video-conferencing machines were used to transmit and receive the original ultrasound images at data rates of 384 kbit/s and 128 kbit/s, thus producing a total of three tapes for each case. Four experienced observers, who were blinded to the transmission bandwidth, each viewed 300 examinations and decided whether the images were acceptable or not for diagnosis. Almost 100% of the obstetric ultrasound images on the original recordings were considered diagnostically acceptable, compared with 93% of the 384 kbit/s transmissions and 44% of the 128 kbit/s transmissions. Similarly, 99% of the non-obstetric ultrasound images were considered acceptable, compared with 87% of the 384 kbit/s transmissions and 21% of the 128 kbit/s transmissions. For the obstetric ultrasound images the intra-observer diagnostic agreement was 93% (kappa = 0.89) between the original and the 384 kbit/s transmissions, and 78% (kappa = 0.63) between the original and the 128 kbit/s transmissions. For the non-obstetric ultrasound images the respective intra-observer diagnostic agreements were 77% (kappa = 0.62) and 78% (kappa = 0.63). The quality of dynamic ultrasound images transmitted at 384 kbit/s was diagnostically acceptable, but was unsatisfactory at 128 kbit/s.

The importance of appropriate training in the use of videoconferencing equipment for clinical purposes is often underestimated when telemedicine projects are established. We developed a user training programme which was delivered via videoconferencing to a group of 130 nurses. Training was delivered on a one-to-one basis. A questionnaire was developed to evaluate user satisfaction and the effectiveness of training. One hundred and two fully completed questionnaires were returned (a 79% response rate). High levels of satisfaction were obtained but the level of user competence reached 100% only when training was supported by a training manual and at least weekly practice. Before establishing a telemedicine service, the following steps appear to be important: identify the required training competencies; deliver a 'hands on' training programme based on the required training competencies; back up the training programme with an instruction booklet; ensure that trainees have at least weekly practice; measure the level of user competence.