Assessment of smartphone applications for total body digital photography-guided skin exams by patients

End-User Skin Analysis (Moles) through Image Acquisition and Processing System

Skin moles and lesions can be the first signs of severe skin diseases such as cancer. This paper presents the development of an end-user device capable of capturing images, segmentation and diagnosis of moles by using the ABCD rule, which stands for analyzing moles' parameters as: asymmetry, border, color, and diameter. These are the main mole characteristics that doctors look at, each of them having a different factor of importance, and depending on these an accurate diagnosis can be given. For the hardware, we developed a small and compact device that can be manipulated easily by anyone without knowledge of medicine, in which we considered a custom-designed 3D enclosure with two white LEDs to control the light. The device has the role of facilitating analysis of the suspicious moles regularly at home, even if only from an indicative and not from a medical point of view. The developed PC software permits the storage of the images in a local database for easy tracking and analysis in time. The image processing developed for the ABCD rule is incorporated into the PC software and tested extensively on the international PH2 database with skin melanoma images to validate our segmentation and criteria evaluation. Using the developed device, we captured mole images for patients, who also took a medical examination by a specialist using the standard dermatoscope. Therefore, we obtained our own database containing 26 images for which we have also the specialists' diagnosis. The performance evaluation measures obtained using our device are-Accuracy: 0.92, Precision: 1.0, Recall: 0.92, F1-score: 0.96.

New diagnostic and imaging technologies in dermatology

INTRODUCTION

Diagnosis of dermatological disorders is primarily based on clinical examination in combination with histopathology. However, clinical findings alone may not be sufficient for accurate diagnosis and cutaneous biopsies are being associated with morbidity.

OBJECTIVE

The objective of this article is to review the newer technologies along with their applications, limitation and future prospectus.

METHODOLOGY

Comprehensive literature search was performed using electronic online databases "PubMed" and "Google Scholar". Articles published in English language were considered for the review.

RESULTS

In order to improve and/or widen the armamentarium in dermatologic disease diagnosis and therapy, newer emerging technologies are being made available which aid in diagnosis and management. New emerging technologies include confocal microscopy, digital photographic imaging, optical coherence tomography, high frequency ultrasonography, and artificial intelligence. There have been advancements in the dermoscopes.

CONCLUSION

Significant progress is seen in the diagnostic methods and imaging technologies in dermatology, each having its advantages and limitations. Artificial intelligence/machine-based learning software may have a great scope to influence the dermatological practice.

Avoiding Breach of Patient Confidentiality: Trial of a Smartphone Application That Enables Secure Clinical Photography and Communication

Background

To evaluate a smartphone application for clinical photography that prioritizes and facilitates patient security.

Methods

Ethics was obtained to trial the application Sharesmart. Calgary plastic surgeons/residents used the application for clinical photography and communication. Surveys gauging the application usability, incorporated consent process, and photograph storage/sharing were then sent to surgeons and patients.

Results

Over a 1-year trial period, 16 Calgary plastic surgeons and 24 residents used the application to photograph 84 patients. Half (56%) of the patients completed the survey. The majority of patients found the applications consent process acceptable (89%) and felt their photograph was secure (89%). Half (51%) of the surgeons/residents completed the survey and would use the application as is (67%) or with modifications (33%). The consent process was felt to be superior (73%) or equivalent (23%) to participant's prior methods and was felt to resolve issues present with current photography practices of secure transmission and storage of photographs by 100% and 95% of respondents, respectively. Perceived limitations of the application included difficulties in use with poor cellphone service or Internet, decreased speed compared to current practices, the lack of a desktop platform, video capability, and ability to transmit the photograph directly to the patient's medical record.

Conclusions

A smartphone clinical photography application addresses the risks of patient confidentiality breach present with current photography methods; broad implementation should be considered.

Emerging imaging technologies in dermatology: Part I: Basic principles

Dermatologists rely primarily on clinical examination in combination with histopathology to diagnose conditions; however, clinical examination alone might not be sufficient for accurate diagnosis and skin biopsies have associated morbidity. With continued technological advancement, there are emerging ancillary imaging technologies available to dermatologists to aid in diagnosis and management. This 2-part review article will discuss these emerging technologies including: digital photographic imaging, confocal microscopy, optical coherence tomography, and high-frequency ultrasound, as well as several additional modalities in development. In this first installment, the authors describe the breadth of technologies available and the science behind them. Then, in the second article, the authors discuss the applications and limitations of these technologies and future directions.

Smartphone-Based Applications for Skin Monitoring and Melanoma Detection

With the advancement of mobile technologies, smartphone applications (apps) have become widely available and gained increasing attention as a novel tool to deliver dermatologic care. This article presents a review of various apps for skin monitoring and melanoma detection and a discussion of current limitations in the field of dermatology. Concerns regarding quality, transparency, and reliability have emerged because there are currently no established quality standards or regulatory oversight of mobile medical apps. Only a few apps have been evaluated clinically. Further research is needed to evaluate the utility and efficacy of smartphone apps in skin cancer screening and early melanoma detection.