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Van Es SL, Madabhushi A. The revolving door for AI and pathologists-docendo discimus? ACTA ACUST UNITED AC 2019; 2. [PMID: 31372599 DOI: 10.21037/jmai.2019.05.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Simone L Van Es
- Department of Pathology, School of Medical Sciences, UNSW Medicine, UNSW Sydney, Australia
| | - Anant Madabhushi
- Department of Biomedical Engineering, Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH 44106, USA.,Louis Stokes Cleveland Veterans Administration Medical Center, Cleveland, OH 44106, USA
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Lamprell K, Braithwaite J. When Patients Tell Their Own Stories: A Meta-Narrative Study of Web-Based Personalized Texts of 214 Melanoma Patients' Journeys in Four Countries. QUALITATIVE HEALTH RESEARCH 2018; 28:1564-1583. [PMID: 29173015 DOI: 10.1177/1049732317742623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Malignant melanoma is an aggressive, recalcitrant disease. Its impact on people can be compounded by the physical and psychosocial consequences of medical management. Providing melanoma patients with patient-centered care that is effective, safe, and supportive throughout their journey requires knowledge of patients' progressive experiences and evolving perspectives. With ethical approval, we undertook a meta-narrative study of 214 experiential accounts of melanoma collected from the personal story sections of melanoma and cancer support websites. Using a narrative approach, we qualitatively examined the care experiences represented in these accounts and identified needs for supportive care in a framework reflective of the personal patient journey. We differentiate these across three key periods: lead-up to diagnosis; diagnosis, treatment, and recovery; and posttreatment and recurrence, and provide a visual representation of the patient journey. This article contributes to the growing body of work that utilizes Internet content as sources of qualitative, experiential health care data.
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Affiliation(s)
- Klay Lamprell
- 1 Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia
| | - Jeffrey Braithwaite
- 1 Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia
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Kostopoulos SA, Asvestas PA, Kalatzis IK, Sakellaropoulos GC, Sakkis TH, Cavouras DA, Glotsos DT. Adaptable pattern recognition system for discriminating Melanocytic Nevi from Malignant Melanomas using plain photography images from different image databases. Int J Med Inform 2017; 105:1-10. [PMID: 28750902 DOI: 10.1016/j.ijmedinf.2017.05.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 05/15/2017] [Accepted: 05/24/2017] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to propose features that evaluate pictorial differences between melanocytic nevus (mole) and melanoma lesions by computer-based analysis of plain photography images and to design a cross-platform, tunable, decision support system to discriminate with high accuracy moles from melanomas in different publicly available image databases. MATERIAL AND METHODS Digital plain photography images of verified mole and melanoma lesions were downloaded from (i) Edinburgh University Hospital, UK, (Dermofit, 330moles/70 melanomas, under signed agreement), from 5 different centers (Multicenter, 63moles/25 melanomas, publicly available), and from the Groningen University, Netherlands (Groningen, 100moles/70 melanomas, publicly available). Images were processed for outlining the lesion-border and isolating the lesion from the surrounding background. Fourteen features were generated from each lesion evaluating texture (4), structure (5), shape (4) and color (1). Features were subjected to statistical analysis for determining differences in pictorial properties between moles and melanomas. The Probabilistic Neural Network (PNN) classifier, the exhaustive search features selection, the leave-one-out (LOO), and the external cross-validation (ECV) methods were used to design the PR-system for discriminating between moles and melanomas. RESULTS Statistical analysis revealed that melanomas as compared to moles were of lower intensity, of less homogenous surface, had more dark pixels with intensities spanning larger spectra of gray-values, contained more objects of different sizes and gray-levels, had more asymmetrical shapes and irregular outlines, had abrupt intensity transitions from lesion to background tissue, and had more distinct colors. The PR-system designed by the Dermofit images scored on the Dermofit images, using the ECV, 94.1%, 82.9%, 96.5% for overall accuracy, sensitivity, specificity, on the Multicenter Images 92.0%, 88%, 93.7% and on the Groningen Images 76.2%, 73.9%, 77.8% respectively. CONCLUSION The PR-system as designed by the Dermofit image database could be fine-tuned to classify with good accuracy plain photography moles/melanomas images of other databases employing different image capturing equipment and protocols.
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Affiliation(s)
- Spiros A Kostopoulos
- Medical Image and Signal Processing Lab (MEDISP), Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece; Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - Pantelis A Asvestas
- Medical Image and Signal Processing Lab (MEDISP), Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece; Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - Ioannis K Kalatzis
- Medical Image and Signal Processing Lab (MEDISP), Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece; Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - George C Sakellaropoulos
- Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - Theofilos H Sakkis
- Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - Dionisis A Cavouras
- Medical Image and Signal Processing Lab (MEDISP), Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece; Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece
| | - Dimitris T Glotsos
- Medical Image and Signal Processing Lab (MEDISP), Department of Biomedical Engineering, Technological Educational Institute of Athens, Greece; Department of Medical Physics, School of Health Sciences, Faculty of Medicine, University of Patras, Rio, Patras, Greece.
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