Effect of camera performance on diagnostic accuracy: preliminary results from the Northern Ireland arms of the UK Multicentre Teledermatology Trial

1997 ◽  
Vol 3 (2) ◽  
pp. 83-88 ◽  
Author(s):  
M A Loane ◽  
H E Gore ◽  
R Corbett ◽  
K Steele ◽  
C Mathews ◽  
...  
Keyword(s):  
Northern Ireland ◽  
Diagnostic Accuracy ◽  
Low Cost ◽  
Single Chip ◽  
Face To Face ◽  
Video Cameras ◽  
Dermatology Clinic ◽  
The Uk ◽  
Missed Diagnoses ◽  
Made In

The diagnostic accuracy of realtime teledermatology was measured using two different video cameras. One camera was a relatively low-cost, single-chip device camera 1 , while the other was a more expensive, three-chip camera camera 2 . The diagnosis obtained via the videolink was compared with the diagnosis made in person. Sixty-five new patients referred to a dermatology clinic were examined using camera 1 followed by a standard face-to-face consultation on the same day. A further 65 patients were examined using camera 2 and the same procedure implemented. Seventy-six per cent of conditions were correctly diagnosed by telemedicine using camera 2 compared with 62 using camera 1. A working differential diagnosis was obtained in 12 of cases using camera 2 compared with 14 using camera 1. The percentage of `no diagnosis`, wrong and missed diagnoses was halved using camera 2 compared with camera 1. These results suggest that the performance of the more expensive camera was superior for realtime teledermatology.

Preliminary results from the Northern Ireland arms of the UK Multicentre Teledermatology Trial: Effect of camera performance on diagnostic accuracy

1997 ◽  
Vol 3 (1_suppl) ◽  
pp. 73-75 ◽  
Author(s):  
M A Loane ◽  
H E Gore ◽  
R Corbett ◽  
K Steele ◽  
C Mathews ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Low Cost ◽  
Single Chip ◽  
Trial Effect ◽  
Face To Face ◽  
Video Cameras ◽  
Dermatology Clinic ◽  
The Uk ◽  
Missed Diagnoses ◽  
Made In

The diagnostic accuracy of realtime teledermatology was measured using two different video cameras. One camera was a relatively low-cost, single-chip device (camera 1), while the other was a more expensive three-chip camera (camera 2). The diagnosis obtained via the videolink was compared with the diagnosis made in person. Sixty-five new patients referred to a dermatology clinic were examined using camera 1 followed by a standard face-to-face consultation. A further 65 patients were examined using camera 2 and the same procedure applied. Seventy-six per cent of conditions were correctly diagnosed by telemedicine using camera 2 compared with 59% using camera 1. A working differential diagnosis was obtained in 12% of cases using camera 2 compared with 17% using camera 1. The percentage of ‘no diagnosis’, wrong and missed diagnoses was halved using camera 2 compared with camera 1. These results suggest that the performance of camera 2 was superior to that of camera 1 for realtime teledermatology.

Diagnostic accuracy and clinical management by realtime teledermatology. Results from the Northern Ireland arms of the UK Multicentre Teledermatology Trial

1998 ◽  
Vol 4 (2) ◽  
pp. 95-100 ◽  
Author(s):  
M A Loane ◽  
R Corbett ◽  
S E Bloomer ◽  
D J Eedy ◽  
H E Gore ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Clinical Management ◽  
Low Cost ◽  
Treatment Plan ◽  
Management Plan ◽  
Face To Face ◽  
Management Plans ◽  
Video Link ◽  
The Uk ◽  
Management Recommendations

Diagnostic accuracy and management recommendations of realtime teledermatology consultations using low-cost telemedicine equipment were evaluated. Patients were seen by a dermatologist over a video-link and a diagnosis and treatment plan were recorded. This was followed by a face-to-face consultation on the same day to confirm the earlier diagnosis and management plan. A total of 351 patients with 427 diagnoses participated. Sixty-seven per cent of the diagnoses made over the video-link agreed with the face-to-face diagnosis. Clinical management plans were recorded for 214 patients with 252 diagnoses. For this cohort, 44 of the patients were seen by the same dermatologist at both consultations, while 56 were seen by a different dermatologist. In 64 of cases the same management plan was recommended at both consultations; a sub-optimum treatment plan was recommended in 8 of cases; and in 9 of cases the video-link management plans were judged to be inappropriate. In 20 of cases the dermatologist was unable to recommend a suitable management plan by video-link. There were significant differences in the ability to recommend an optimum management plan by video-link when a different dermatologist made the reference management plan. The results indicate that a high proportion of dermatological conditions can be successfully managed by realtime teledermatology.

Could a low-cost audio-visual link be useful in rheumatology?

2000 ◽  
Vol 6 (1_suppl) ◽  
pp. 35-37 ◽  
Author(s):  
L E Graham ◽  
S Mcgimpsey ◽  
S Wright ◽  
G Mcclean ◽  
J Carser ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Gold Standard ◽  
Junior Doctor ◽  
Low Cost ◽  
Clinical Signs ◽  
Final Diagnosis ◽  
Provisional Diagnosis ◽  
Face To Face ◽  
Significant Difference ◽  
Small Joint

We have investigated prospectively the diagnostic accuracy, specialist satisfaction and patient–specialist rapport of a low-cost audio-visual link between a junior doctor with a patient and a consultant rheumatologist. Using a telephone link and subsequently a video-phone link, 20 patients, with various rheumatological problems, were presented by a junior doctor to the consultant rheumatologist for provisional diagnosis. All patients were then seen face to face by the consultant, when a final diagnosis was made. An independent consultant rheumatologist made a ‘gold standard’ diagnosis. Thirty-five per cent of diagnoses were made correctly over the telephone and 40% over the video-phone – there was no significant difference in the diagnostic accuracy between these two methods of communication. Rapport over the video-phone was universally poor. Where it was important, clinical signs could not be visualized over the video-phone and in more than 85% of cases small joint swellings could not be seen clearly.

scholarly journals Why business angels reject investment opportunities: Is it personal?

2016 ◽  
Vol 35 (5) ◽  
pp. 519-534 ◽  
Author(s):  
Colin Mason ◽  
Tiago Botelho ◽  
Justyna Zygmunt
Keyword(s):  
Northern Ireland ◽  
Communities Of Practice ◽  
Internet Survey ◽  
Major Focus ◽  
Business Angels ◽  
Face To Face ◽  
Investment Opportunities ◽  
Increasing Trend ◽  
Decision Making Processes ◽  
The Uk

A major focus of research on business angels has examined their decision-making processes and investment criteria. As business angels reject most opportunities they receive, this article explores the reasons informing such decisions. In view of angel heterogeneity, investment opportunities might be expected to be rejected for differing reasons. Two sources of data are used to examine this issue. Face-to-face interviews with 30 business angels in Scotland and Northern Ireland provided information on typical ‘deal killers’. This was complemented by an Internet survey that attracted responses from 238 business angels from across the UK. The findings confirm that the main reason for rejection relates to the entrepreneur/management team. However, angel characteristics do not explain the number of reasons given for opportunity rejection nor do they predict the reasons for rejecting investment opportunities. This could be related to the increasing trend for business angels to join organised groups which, in turn, leads to the development of a shared repertoire of investment approaches. We therefore suggest the concept of ‘communities-of-practice’ as an explanation for this finding.

scholarly journals The King’s College London Coronavirus Health and Experiences of Colleagues at King’s Study: SARS-CoV-2 antibody response in a higher education sample

2021 ◽  
Author(s):  
Daniel Leightley ◽  
Valentina Vitiello ◽  
Alice Wickersham ◽  
Katrina A.S. Davis ◽  
Gabriella Bergin-Cartwright ◽  
...  
Keyword(s):  
Higher Education ◽  
Low Cost ◽  
Phase 1 ◽  
Phase 2 ◽  
Antibody Testing ◽  
Face To Face ◽  
King's College ◽  
Positive Antibody ◽  
The Uk ◽  
Test Result

AbstractObjectiveTo assess the feasibility of home antibody testing as part of large-scale study, the King’s College London Coronavirus Health and Experiences of Colleagues at King’s (KCL CHECK).MethodsParticipants of the KCL CHECK study were sent a SureScreen Diagnostics COVID-19 IgG/IgM Rapid Test Cassette to complete at home in June 2020 (phase 1) and September 2020 (phase 2). Participants were asked to upload a test result image to a study website. Test result images and sociodemographic information were analysed by the research team.ResultsA total of n=2716 participants enrolled in the KCL CHECK study, with n=2003 (73.7%) and n=1825 (69.3%) consenting and responding to phase 1 and 2. Of these, n=1882 (93.9%; phase 1) and n=1675 (91.8%; phase 2) returned a valid result. n=123 (6.5%; phase 1) and n=91 (5.4%; phase 2) tested positive for SARS-CoV-2 antibodies. A total of n=1488 participants provided a result in both phases, with n=57 (3.8%) testing positive for SARS- CoV-2 antibodies across both phases, suggesting a reduction in the number of positive antibody results over time. Initial comparisons showed variation by age group, gender and clinical role.ConclusionsOur study highlights the feasibility of rapid, repeated and low-cost SARS-CoV-2 serological testing without the need for face-to-face contact.What is already known about this subject?Higher education institutions have a duty of care to minimise the spread and transmission of COVID-19 in its campuses, and among staff and students. The reopening of higher education buildings and campuses has brought about a mass movement of students, academics and support staff from across the UK. Serological antibody studies can assist by highlighting groups of people and behaviours associated with high risk of COVID-19.What are the new findings?We report a framework for SARS-CoV-2 serological antibody testing in an occupational group of postgraduate research students and current members of staff at King’s College London. Over two phases of data collection, 6.5% (phase 1) and 5.4% (phase 2) tested positive for SARS-CoV-2 antibodies, with only 3.8% testing positive for antibodies in both phases, suggesting a reduction in positive antibody results over time.How might this impact on policy or clinical practice in the foreseeable future?Our study highlights the feasibility of rapidly deploying low-cost and repeatable SARS-CoV-2 serological testing, without the need for face-to-face contact, to support the higher education system of the UK.

Preliminary results from the Northern Ireland arms of the UK Multicentre Teledermatology Trial: is clinical management by realtime teledermatology possible?

1998 ◽  
Vol 4 (1_suppl) ◽  
pp. 3-5 ◽  
Author(s):  
M A Loane ◽  
H E Gore ◽  
S E Bloomer ◽  
R Corbett ◽  
D J Eedy ◽  
...  
Keyword(s):  
Northern Ireland ◽  
Clinical Management ◽  
Low Cost ◽  
Treatment Plan ◽  
Phase 1 ◽  
Management Plan ◽  
Management Tool ◽  
Dermatological Disease ◽  
Video Link ◽  
The Uk

Results from phase 1 of the UK Multicentre Teledermatology Trial demonstrated the diagnostic accuracy of realtime teledermatology using low-cost equipment. Phase 2 of the trial aimed to assess its effectiveness as a management tool for dermatological disease. Teledermatology consultations were organized between two health centres and two hospitals in Northern Ireland using low-cost videoconferencing equipment. For 205 patients seen by a dermatologist over the video-link a diagnosis and management plan were recorded. A subsequent face-to-face consultation was arranged on the same day to confirm the diagnosis and treatment regime. A comparison of these management plans revealed that the same plan was recommended in 64% of cases; the teledermatologist was unable to advocate a suitable management plan in 19% of cases; a suboptimal treatment plan was suggested by the teledermatologist in 6% of cases; and in 11% of cases, the teledermatologist suggested an inappropriate treatment plan. These findings indicate that appropriate clinical management was possible in approximately two-thirds of dermatology consultations via the video-link.

Teledermatology—high technology or not?

1998 ◽  
Vol 4 (1_suppl) ◽  
pp. 31-32 ◽  
Author(s):  
P V Harrison ◽  
B Kirby ◽  
Y Dickinson ◽  
R Schofield
Keyword(s):  
Diagnostic Accuracy ◽  
General Practitioners ◽  
Low Cost ◽  
High Technology ◽  
Relevant Information ◽  
Management Plan ◽  
Diagnostic Ability ◽  
Photographic Images ◽  
Dermatology Clinic ◽  
Malignant Lesions

As an alternative to attending a conventional dermatology clinic, patients had a high-resolution conventional photographic image taken by a professional medical photographer. The photographic images were viewed by a dermatologist together with referral details from the general practitioner and any other relevant information from the patient's notes. From the images, a dermatological diagnosis was derived and a management plan for each patient instituted. After treatment, histological assessment of the tumours allowed diagnostic accuracy to be determined. The preliminary diagnostic accuracy (71%) was greater than that of the referring general practitioners (49%). However, when the diagnostic ability of the method to detect the nature of malignant lesions was examined, telemedicine was able to detect malignancies in 94% of cases compared with only 70% detected by general practitioners. The results of the present study indicate that teledermatology is achievable using a low-technology, low-cost approach.

Teledermatology in New Zealand

2001 ◽  
Vol 5 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Amanda M. M. Oakley
Keyword(s):  
Digital Imaging ◽  
Skin Diseases ◽  
Video Conferencing ◽  
Considerable Time ◽  
Medical Practitioners ◽  
Face To Face ◽  
Technological Advances ◽  
Store And Forward ◽  
The Uk ◽  
Made In

Background: Teledermatology is the delivery of specialist dermatological services at a distance. It has become possible because of technological advances in digital imaging and telecommunications. Consultations may be “interactive” using video-conferencing equipment or “store-and-forward” using prerecorded text and images. The best method to deliver teledermatology services is unknown. Objective: Studies were designed to determine (a) if it was possible to diagnose and manage skin diseases using video-conferencing equipment, (b) if teledermatology was acceptable to patients and medical practitioners, and (c) whether it offered any economic advantages. We have also compared interactive and store-and-forward techniques. Method: The trials were conducted in collaboration with the Institute of Telemedicine & Telecare, Queen's University, Belfast, as part of the UK Teledermatology Trials. Remits: The trials have involved more than 300 teledermatology consultations. Having established that a diagnosis can be made in more than two-thirds of the cases, the majority of video consultations have resulted in satisfactory management, with only small numbers of patients requiring face-to-face review. Teledermatology is generally popular with patients and can save them considerable time and money. Routine clinics continue in three centers. We have found that effective store-and-forward teledermatology requires very good images and comprehensive historical referral data.

Imprecision of Laboratory Determinations and Diagnostic Accuracy: Theoretical Considerations

1974 ◽  
Vol 13 (03) ◽  
pp. 151-158 ◽  
Author(s):  
D. A. B. Lindbebo ◽  
Fr. R. Watson
Keyword(s):  
Mathematical Model ◽  
Diagnostic Accuracy ◽  
Diagnostic Process ◽  
Clinical Laboratories ◽  
Non Linear ◽  
Theoretical Considerations ◽  
Made In

Recent studies suggest the determinations of clinical laboratories must be made more precise than at present. This paper presents a means of examining benefits of improvement in precision. To do this we use a mathematical model of the effect upon the diagnostic process of imprecision in measurements and the influence upon these two of Importance of Diagnosis and Prevalence of Disease. The interaction of these effects is grossly non-linear. There is therefore no proper intuitive answer to questions involving these matters. The effects can always, however, be calculated.Including a great many assumptions the modeling suggests that improvements in precision of any determination ought probably to be made in hospital rather than screening laboratories, unless Importance of Diagnosis is extremely high.

İngiltere’den Türkiye’ye ‘Düzensiz’ Göçmen Dövizi Gönderme Davranışının Nedenleri Üzerine Nitel Bir İnceleme

2019 ◽  
Vol 6 (2) ◽  
pp. 173-190
Author(s):  
Fethiye Tilbe
Keyword(s):  
Cultural Values ◽  
Host Country ◽  
Regulatory Framework ◽  
Face To Face ◽  
Migrant Communities ◽  
The United Kingdom ◽  
Main Determinants ◽  
Money Transfers ◽  
The Uk ◽  
Migrant Groups

Bu makale, göçmen dövizi  akımlarında “düzensizlik” olarak ifade ettiğimiz, Türkiye’ye resmi kanallar dışında gönderilen enformel  göçmen dövizlerini, Birleşik Krallık’ta (özellikle Londra’da) yaşayan Türkiye kökenli göçmenler açısından incelemektedir. Her göçmen grubu, gerek ev sahibi ülkedeki düzenleyici çerçeve ve sosyo-ekonomik koşullar, gerek göçmen topluluğunun sosyo-kültürel değerleri tarafından belirlenen biçimde, farklı göçmen dövizi transfer biçimlerine eğilim sergilemektedir. Dolayısıyla farklı ülkelerdeki aynı kökenden göçmen toplulukları, ev sahibi ülkedeki dinamikler nedeniyle göçmen dövizlerinin formel ya da enformel (düzenli ya da düzensiz) gönderiminde farklılaşabilirken, aynı ülkedeki farklı ülke kökenli göçmen grupları da pek çok örüntünün etkisiyle farklı eğilim gösterebilmektedir. Nitel araştırma tasarımı kapsamında 27 göçmen ve 7 anahtar statüdeki katılımcıyla gerçekleştirilen yüz yüze görüşmelere dayalı olan bu çalışma, Birleşik Krallık’tan Türkiye’ye göçmen dövizi gönderimindeki düzensizlik olgusunu, her iki ülkenin sosyal, ekonomik ve kültürel dinamikleriyle ilişkilendirerek incelemeyi ve nedenlerini ortaya çıkarmayı amaç edinmektedir. Elde edilen sonuçlar, göçmenlik statüsü, gönderilen para miktar ve sıklığı ile geleneksel ilişki ağlarına olan güvenin yanında, Birleşik Krallık’taki sosyal yardım ve çalışma biçimine ilişkinin düzenleyici çerçevenin ve göçmenlerin sosyo-ekonomik durumlarının Türkiye’ye enformel göçmen dövizi gönderiminde temel belirleyici olduğunu ortaya koymaktadır.ABSTRACT IN ENGLISHA Qualitative Examination of Determinants of Remittances Sending Behaviour Among Immigrants from Turkey in the UKThis article examines the causes of irregularity in remittances flows from the United Kingdom (UK) to Turkey, from the perspective of migrants from Turkey living in the UK. Each group of migrants prefers different types of remittance sending methods, as determined by the regulatory framework and socio-economic conditions in the host country and the socio-cultural values of the migrant community. Therefore, migrant communities of the same origin in different countries may differ in using formal or informal sending methods of remittances due to the dynamics in the host country. Similarly, migrant groups of different nationalities in the same country may show different tendencies due to the influence of many patterns. Similarly, migrant groups of different nationalities in the same country may show different tendencies due to the influence of many patterns. This study aims to examine the phenomenon of irregularities in sending remittances by associating with the social, economic and cultural dynamics of both countries. For this purpose, face-to-face in-depth interviews were conducted with 27 immigrants and 7 key status participants by using qualitative research method. The obtained results reveal that the regulatory framework relating to social assistance and labour market in the UK, immigration status, the frequency and the amount of money sent and confidence in traditional relationship networks is the main determinants of informal money transfers to Turkey.

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