ABSTRACT
Purpose of Study: Teledermatology, defined as the use of technology to provide dermatology services to individuals in a remote setting, has grown considerably in popularity since the onset of the COVID-19 era. Teledermoscopy utilizes a dermatoscope attachment paired with a smartphone camera to visualize colors and microstructures within the epidermis and superficial dermis that cannot be seen with the naked eye alone. When combined with store-and-forward technology, teledermoscopy of lesions concerning for skin cancer can improve virtual referral and triage workflow. Methods Used: Our retrospective case-control study evaluated the efficacy of a smartphone dermatoscope borrow program in the remote triage of individuals with self-selected skin lesions of concern and its effect on subsequent in-person follow-up visits. A retrospective medical record review was conducted of all Oregon Health and Science University (OHSU) Department of Dermatology spot check image submissions utilizing the smartphone dermatoscopes between August 2020-2022. Dermoscopic images of skin lesions that included corresponding non-dermoscopic clinical images in their submission were included in our review (n=70). A blinded expert dermoscopist then reviewed the clinical and dermoscopic images separately and utilized standard clinical algorithms for skin cancer (ABCD criteria: asymmetry, irregular borders, multiple colors, diameter>= 6mm for clinical images;3-point checklist: dermoscopic asymmetry, atypical network, blue-white structures for dermoscopy images) to determine whether the imaged lesion should translate to an in-person visit for further evaluation. Summary of Results: Of the 70 skin lesions submitted, 59 warranted in-person evaluation from clinical (non-dermoscopic) image review compared to 29 warranting in-person evaluation from dermoscopic images of the same lesion. Thus, this is a 51% reduction of conversion to in-person consultation with the addition of smartphone dermatoscope images in virtual lesion triage (P<0.001, McNemar's Test). Conclusion(s): Implementing patient-led teledermoscopy may reduce frequency of in-person visits for benign lesions, and thus, may decrease wait times for other patients with concerning and possibly malignant lesions. Decreasing the frequency of unnecessary visits may not only improve patient quality of life, but also promote cost-effective expenditures for health systems at large.
ABSTRACT
Teledermatology is a useful tool in facilitating dermatology outpatient services since the advent of COVID-19. Assessment of lesions has become difficult to facilitate in large numbers. Teledermoscopy has been used for remote lesion assessment. However, the majority of teledermoscopy has been facilitated by healthcare professionals rather than the patient themselves (Vestergaard T, Prasad S, Schuster A et al. Introducing teledermoscopy of possible skin cancers in general practice in Southern Denmark. Fam Pract 2020;37: 513-18). Patients referred with lesions deemed to be low risk are now often initially assessed via telephone consultation in conjunction with photographs of the lesion. The majority of patients are subsequently called for dermoscopy. However, many of those referred have benign lesions and could be safely discharged if dermoscopy images of the lesion were available. Low-cost mobile dermoscopy attachments are available and have been marketed to patients for self-monitoring. We compared a smartphone-compatible dermoscopy device (Dermlite HUD) with traditional dermoscopic photography to assess the feasibility of using this device to photograph skin lesions. This device has equivalent magnification (x 10) to dermatoscopes, a smaller field of view (which in all lesions still allowed complete visualization) and employs polarized light. Dermoscopic photography using the Dermlite HUD was taken of 30 consecutive lesions over a 1-month period by dermatology registrars in the dermatology department. Lesions assessed included pigmented lesions, vascular lesions, nonulcerated skin cancers and benign lesions. Images were assessed by a consultant dermatologist and compared to dermoscopic photographs taken using the standard method employed in the department. Images were compared in terms of resolution, field of view and colour quality between the two instruments as per validated image analysis (Celebi M, Mendonca T, Marques J. Dermoscopy Image Analysis, 1st edn. Boca Raton, FL: CRC Press, 2015). The photographed lesions were assessed by a consultant dermatologist and compared with the standard method. Photos taken with the smartphone attachment were found to be 97% equivalent in terms of resolution, field of view and colour quality to those taken using the standard method and 29 of 30 were deemed suitable for remote lesion assessment. Low-cost smartphone dermatoscope attachments provide images of comparable quality to those taken with a dermatoscope and camera. This offers an opportunity to facilitate fully virtual assessment of low-risk skin lesions and is of use in patients unable to travel to clinics or during lockdowns to facilitate virtual clinics.
ABSTRACT
Dermoscopy is a noninvasive diagnostic investigation based on magnification, illumination and obliteration of light scatter on the skin surface allowing better visualization of structures beneath the stratum corneum. We aimed to assess image quality of lesions evaluated at a skin cancer clinic using three different handheld dermatoscopes;the Heine Delta 20T (contact) with an iPad;the MoleScope II (noncontact) with a Samsung 7 smartphone;and the Dino-Lite Edge with direct download to a MacBook laptop (noncontact). The Heine Delta 20T and iPad is the current standard used. The MoleScope is a mobile smartphone-attachable dermatoscope. The Dino-Lite is a handheld digital microscope that connects directly to the computer via a USB port. The cost of the Heine Delta 20T is roughly 1100, the MoleScope II 260 and the Dino-Lite 600. Twenty-three lesions were imaged with each device;15 were pigmented. A total of 69 images were downloaded and transferred to Microsoft PowerPoint for review in random order. The images were scored by four consultant dermatologists, one general practitioner with a special interest and one associate specialist, blinded to the diagnoses. A score of 1-5 (poor- excellent) was attributed to each category: (i) detail/dermoscopic features;(ii) colour discrimination;(iii) magnification. Each assessor recorded whether - based on the image alone - they could make a diagnosis. The lesions were basal cell carcinoma (n = 6), seborrhoeic keratosis (n = 4), lichenoid keratosis (n = 1), benign naevi (n = 4), dysplastic naevi (n = 2), melanoma (n = 1), blue naevus (n = 1), sebaceous gland hyperplasia (n = 1), ruptured cyst (n = 1), pyogenic granuloma (n = 1) and dermatofibroma (n = 1). The mean score for each device and category was calculated as follows. (i) Heine: detail = 3.2, colour = 3 3, magnification = 3 2 (overall score = 3 2);46 2% felt able to make a diagnosis. (ii) MoleScope: detail = 2 5, colour = 2 7, magnification 2 5 (overall score = 2 6);43 5% felt able to make a diagnosis. (iii) Dino-Lite: detail = 3 2, colour = 3 2, magnification = 3 6 (overall score = 3 3);57 2% felt able to make a diagnosis. Analysis on a PC screen allowed greater magnification than is generally employed in clinic, which may have affected assessors. The Heine is not primarily designed for digital dermoscopy. It requires two operators for image capture, whereas the other systems require only one. The MoleScope remains the most 'mobile', whereas the Dino-Lite is attached to a laptop/PC. Both the MoleScope and Dino-Lite can be used as noncontact dermatoscopes, avoiding contact medium use. Considering the current COVID-19 pandemic, these devices are less time consuming, more convenient and easier to clean. Overall, the Dino-Lite produced the best images. Despite the MoleScope scoring lower, it was comparable for diagnostic ability. It is proposed that the MoleScope and Dino-Lite systems may be optimal for use in teledermatology to facilitate virtual clinics.
ABSTRACT
Aim of the work: To evaluate the frequency of nail ridging (NR) in patients with rheumatoid arthritis (RA) and to study its relation to disease activity. Patients and methods: 230 RA patients and 97 matched controls from Helwan, Ain Shams and Mansoura university hospitals were studied. Disease activity score (DAS28) was assessed. NR has been searched for in all patients. The number of affected fingers was recorded. NR was determined by a magnifying lens, seen by naked eye or seen and felt. Dermoscopic photography of the NR using Dermalite DL4 3Gen dermatoscope has been recorded. Results: The median age of patients was 49 years (42–58 years);they were 221 females and 19 males (F:M 11.1:1) with a disease duration 9 years (5–11 years). Their DAS28 was 3.6 (2.9–4.6). NR was significantly increased in RA cases vs. control;73% vs 20%;p < 0.001. In patients, NR was detected by a magnifying lens in 32.6%, seen in 27% and seen and felt in 13.5%. Joint deformities were significantly higher in those with NR. DAS28 was a significant independent predictor of NR;for every one-point increase in DAS28, there was a 153 times higher odds to exhibit NR at a sensitivity of 93.5%, specificity 80.3% and at a diagnostic accuracy of 90%. Conclusion: NR is a frequent finding in RA. An integrated rheumatological- dermatological clinical evaluation may be helpful and further studies are required to prove the importance of this sign for follow up of RA patients.
ABSTRACT
Because of the Coronavirus disease and the problem of uneven distribution of physicians between urban and rural areas, telemedicine is widely adopted, including tele-dermatology. However, there is still no formal and consistent format for telemedicine data exchange in Taiwan. In 2021, Ministry of Health and Welfare (MOHW) of Taiwan has announced that the National Electronic Medical Record Exchange Center (EEC) should follow Fast Health Care Interoperability Resources (FHIR) based on Health Level 7 (HL7) in Taiwan. Dermatoscope has become a significant tool for diagnosis in dermatology. It is used in diagnosing benign and malignant skin tumors, seborrheic keratosis, malignant melanoma, squamous cell carcinoma, and basal cell carcinoma, etc. With the advancement of medical optical imaging, dermoscope has become a convenient, portable, non-invasive, diagnostic instrument. In this study, we set FHIR standards for the interoperability of information for digital dermatoscope in teleconsultation, and built a FHIR-based teleconsultation system. There were two stages: Setting the FHIR standard for information of digital dermatoscope in teleconsultation and sharing information between teleconsultation system and the FHIR server. © 2022 ACM.