一种远程医疗数据传输FEC算法

基于H．323框架标准协议的远程医疗系统在进行数据传输时，常常需要使用UDP（用户数据报协议），但往往因网络物理信道条件恶劣或者过于拥塞造成数据传输过程中数据包大量丢失。针对该问题，基于有限域理论，我们得出一种数据恢复率高、实现简单的远程医疗数据传输FEC算法。在算法允许的毛包度范围内，可对传输过程中丢失的数据包进行恢复，保证远程医疗系统数据传输的实时性和有效性。     

走学科建设之路打造国家级远程医学服务平台

针对我国远程医学的学科建设、医学资源共享、远程会诊服务、临床应用及远程教育培训等方面展开讨论,探索远程医学发展趋势及学科建设目标。     

远程医学会诊的质量控制研究

根据600多例远程会诊的实际工作经验,总结远程医学会诊工作的开展情况,认真分析远程医学会诊的各个环节及其特点,认为从医学会诊专家、会诊病例资料、远程医学从业人员、远程医学会诊流程、基础医疗和护理水平、终末质量管理六个方面进行规范化管理,可以不断提高远程医学会诊质量,以促进远程医学工作的健康发展。     

Telemedicine in acute stroke

Abstract Background   Telemedicine is increasingly being used in acute stroke care. Some of the first studies and network projects are already applying remote audiovisual communication for patient evaluation. Formerly the telephone was the method of choice to contact experts for case discussion. We compared remote video-examination and telephone consultation in acute stroke care. Methods   Two district hospitals were linked to stroke centers in Northern Bavaria. Patients with symptoms suggestive of an acute stroke were included. Remote video examination (RVE) was provided by live audiovisual communication and access to brain images; telephone consultation (TC) was done via standard telephone using a structured interview. There was a weekly rotation of the two methods. Demographic data and other data concerning process and quality of care as well as outcome 10 days after stroke were recorded and compared between the two groups. Results   Within the study period 151 consultations were made in acute stroke patients (mean age 66.8 years). 77 patients were seen by RVE and 74 by TC. Total examination times were 49.8 min for RVE and 27.2 min for TC (p < 0.01). Patients were more frequently transferred to the stroke center after TC consultation (9.1 % vs. 14.9 %, p < 0.05) and had a higher mortality 10 days after stroke (6.8 % vs. 1.3 %, p < 0.05). Diagnosis made by TC had to be corrected more frequently (17.6 % vs. 7.1 %; p < 0.05). Conclusions   Creating a network improves stroke care by establishing cooperation between hospitals. Telephone consultation could be a simple method of telemedicine to support cooperation as it is easy and widely available. However, outcome parameters like mortality indicate that remote video examination is superior to TC. Therefore, full-scale audiovisual communication is recommended for remote consultation in acute stroke care.     

Telemedical technologies in urological cancer care: past,present and future applications

Since the initial development of telegraphy by Sir Charles Wheatstone in 1837 and the telephone by Alexander Graham Bell in 1875, doctors have been able to convey medical information across great distances. The exchange and sharing of medical information has evolved and adapted to suit the vast array of today’s medicine. Early adopters of telemedicine within clinical practice have gained significant health economic benefits. The arrival of wireless connections has further enhanced the possibilities for all clinical work with focus on diagnosis, treatment and management of urological cancers, as highlighted in this article.     

Telehealth Demand Trends During the COVID-19 Pandemic in the Top 50 Most Affected Countries: Infodemiological Evaluation

BackgroundThe COVID-19 pandemic has led to urgent calls for the adoption of telehealth solutions. However, public interest and demand for telehealth during the pandemic remain unknown.ObjectiveWe used an infodemiological approach to estimate the worldwide demand for telehealth services during COVID-19, focusing on the 50 most affected countries and comparing the demand for such services with the level of information and communications technology (ICT) infrastructure available.MethodsWe used Google Trends, the Baidu Index (China), and Yandex Keyword Statistics (Russia) to extract data on worldwide and individual countries’ telehealth-related internet searches from January 1 to July 7, 2020, presented as relative search volumes (RSV; range 0-100). Daily COVID-19 cases and deaths were retrieved from the World Health Organization. Individual countries’ ICT infrastructure profiles were retrieved from the World Economic Forum Report.ResultsAcross the 50 countries, the mean RSV was 18.5 (SD 23.2), and the mean ICT index was 62.1 (SD 15.0). An overall spike in worldwide telehealth-related RSVs was observed from March 11, 2020 (RSV peaked to 76.0), which then tailed off in June-July 2020 (mean RSV for the period was 25.8), but remained higher than pre-March RSVs (mean 7.29). By country, 42 (84%) manifested increased RSVs over the evaluation period, with the highest observed in Canada (RSV=100) and the United States (RSV=96). When evaluating associations between RSV and the ICT index, both the United States and Canada demonstrated high RSVs and ICT scores (≥70.3). In contrast, European countries had relatively lower RSVs (range 3.4-19.5) despite high ICT index scores (mean 70.3). Several Latin American (Brazil, Chile, Colombia) and South Asian (India, Bangladesh, Pakistan) countries demonstrated relatively higher RSVs (range 13.8-73.3) but low ICT index scores (mean 44.6), indicating that the telehealth demand outstrips the current ICT infrastructure.ConclusionsThere is generally increased interest and demand for telehealth services across the 50 countries most affected by COVID-19, highlighting the need to scale up telehealth capabilities, during and beyond the pandemic.     

Review of the Use of Digital Imaging in Retinopathy of Prematurity Screening

Retinopathy of prematurity (ROP) is a vision-threatening vasoproliferative condition of premature infants worldwide. As survival rates of younger and smaller infants improve, more babies are at risk for the development of ROP and blindness. Meanwhile, fewer ophthalmologists are available for bedside indirect ophthalmoscopy screening examinations. Remote digital imaging is a promising method with which to identify those infants with treatment-requiring or referral-warranted ROP quickly and accurately, and may help circumvent issues regarding the limited availability of ROP screening providers. The Retcam imaging system is the most common system for fundus photography, with which high-quality photographs can be obtained by trained non-physician personnel and evaluated by a remote expert. It has been shown to have high reliability and accuracy in detecting referral-warranted ROP, particularly at later postmenstrual ages. Additionally, the method is generally well received by parents and is highly cost-effective.     

Store and forward Teledermatology – the Newport way

Teledermatology plays a vital role within Aneurin Bevan University Health Board. Alongside Consultant Dermatologists we developed Teledermatology to meet clinical needs. This article illustrates the implementation process of the service, highlighting legal and ethical issues that were considered along with the success and scope of the service. The Teledermatology service rapidly reduced waiting times for patients and increased access to specialist care which is cost effective for the Health Board. Following successful implementation and increased demand, there is the scope for expansion. The service is developing additional Teledermatology clinics within the Health Board, evolving telemedicine.