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Sharif-Nia H, Froelicher ES, Fatehi R, Nowrozi P, Shafighi AH, Mohammadi B. The Persian version of the fear of pain questionnaire mong Iranian post-surgery patients: a translation and psychometrics. BMC Psychol 2024; 12:547. [PMID: 39390485 PMCID: PMC11465943 DOI: 10.1186/s40359-024-02040-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 09/26/2024] [Indexed: 10/12/2024] Open
Abstract
INTRODUCTION The Fear of Pain Questionnaire (FOPQ) is a self-report tool designed to measure an individual's fear of pain (FOP). While the Persian version of the FOPQ (FOPQ-P) has been developed, its validity and reliability have not yet been assessed in the Iranian context. This study aims to evaluate the psychometric properties of the FOPQ-P among Iranian patients after surgery. METHODS A methodological study was conducted in 2023 involving 400 post-surgery patients selected with a convenience sampling. The FOPQ was translated into Persian, and its psychometric properties were analyzed using network analysis, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), as well as assessments of convergent and discriminant validity. Internal consistency was measured using Cronbach's alpha, McDonald's Omega, average inter-item correlation coefficient, Composite Reliability, and Maximal Reliability. RESULTS The EFA results with Promax and Kaiser Normalization rotation identified two factors that explained 54.32% of the variance, comprising seven items. The CFA confirmed the model's validity. Both convergent and discriminant validity were established. The reliability analyses showed that Cronbach's alpha, McDonald's omega, composite reliability, and MaxR for all constructs were above 0.7. Additionally, the average inter-item correlation coefficient was greater than 0.5, indicating strong internal consistency and construct reliability. CONCLUSION The findings suggest that the FOPQ-P possesses a valid structure and was acceptable reliability in patients cultural context of Iran post-surgery, making it a suitable instrument for measuring fear of pain in this population.
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Affiliation(s)
- Hamid Sharif-Nia
- Psychosomatic Research Center, Mazandaran University of Medical Sciences, Sari, Iran
- Department of Nursing, Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Erika Sivarajan Froelicher
- Department of Physiological Nursing, School of Nursing, Department of Epidemiology & Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Reza Fatehi
- Department of Nursing, Behshahr Faculty of Nursing, Mazandaran University of Medical Sciences, Sari, Iran
| | - Poorya Nowrozi
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Amir Hossein Shafighi
- Department of Nursing, Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Bita Mohammadi
- Hospital Nurse 17 Shahrivar Amol, Mazandaran University of Medical Sciences, Sari, Iran
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Photiou C, Cloconi C, Strouthos I. Feature-Based vs. Deep-Learning Fusion Methods for the In Vivo Detection of Radiation Dermatitis Using Optical Coherence Tomography, a Feasibility Study. JOURNAL OF IMAGING INFORMATICS IN MEDICINE 2024:10.1007/s10278-024-01241-4. [PMID: 39231883 DOI: 10.1007/s10278-024-01241-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 08/07/2024] [Accepted: 08/18/2024] [Indexed: 09/06/2024]
Abstract
Acute radiation dermatitis (ARD) is a common and distressing issue for cancer patients undergoing radiation therapy, leading to significant morbidity. Despite available treatments, ARD remains a distressing issue, necessitating further research to improve prevention and management strategies. Moreover, the lack of biomarkers for early quantitative assessment of ARD impedes progress in this area. This study aims to investigate the detection of ARD using intensity-based and novel features of Optical Coherence Tomography (OCT) images, combined with machine learning. Imaging sessions were conducted twice weekly on twenty-two patients at six neck locations throughout their radiation treatment, with ARD severity graded by an expert oncologist. We compared a traditional feature-based machine learning technique with a deep learning late-fusion approach to classify normal skin vs. ARD using a dataset of 1487 images. The dataset analysis demonstrates that the deep learning approach outperformed traditional machine learning, achieving an accuracy of 88%. These findings offer a promising foundation for future research aimed at developing a quantitative assessment tool to enhance the management of ARD.
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Affiliation(s)
- Christos Photiou
- Department of Electrical and Computer Engineering, KIOS Research and Innovation Center of Excellence, University of Cyprus, Nicosia, Cyprus.
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Benavides-Lara J, Siegel AP, Tsoukas MM, Avanaki K. High-frequency photoacoustic and ultrasound imaging for skin evaluation: Pilot study for the assessment of a chemical burn. JOURNAL OF BIOPHOTONICS 2024; 17:e202300460. [PMID: 38719468 DOI: 10.1002/jbio.202300460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 07/13/2024]
Abstract
Skin architecture and its underlying vascular structure could be used to assess the health status of skin. A non-invasive, high resolution and deep imaging modality able to visualize skin subcutaneous layers and vasculature structures could be useful for determining and characterizing skin disease and trauma. In this study, a multispectral high-frequency, linear array-based photoacoustic/ultrasound (PAUS) probe is developed and implemented for the imaging of rat skin in vivo. The study seeks to demonstrate the probe capabilities for visualizing the skin and its underlying structures, and for monitoring changes in skin structure and composition during a 5-day course of a chemical burn. We analayze composition of lipids, water, oxy-hemoglobin, and deoxy-hemoglobin (for determination of oxygen saturation) in the skin tissue. The study successfully demonstrated the high-frequency PAUS imaging probe was able to provide 3D images of the rat skin architecture, underlying vasculature structures, and oxygen saturation, water, lipids and total hemoglobin.
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Affiliation(s)
- Juliana Benavides-Lara
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Amanda P Siegel
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Maria M Tsoukas
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Kamran Avanaki
- The Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois, USA
- Department of Dermatology, University of Illinois at Chicago, Chicago, Illinois, USA
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Lu LY, Chen YT, Chen IL, Shih YC, Liu RTL, Lai YJ, Ng CY. Feasibility of High-Cellular-Resolution Full-Field, Artificial-Intelligence-Assisted, Real-Time Optical Coherence Tomography in the Evaluation of Vitiligo: A Prospective Longitudinal Follow-Up Study. Bioengineering (Basel) 2024; 11:196. [PMID: 38391682 PMCID: PMC10886376 DOI: 10.3390/bioengineering11020196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/05/2024] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
Vitiligo, a psychologically distressing pigmentary disorder characterized by white depigmented patches due to melanocyte loss, necessitates non-invasive tools for early detection and treatment response monitoring. High-cellular-resolution full-field optical coherence tomography (CRFF-OCT) is emerging in pigmentary disorder assessment, but its applicability in vitiligo repigmentation after tissue grafting remains unexplored. To investigate the feasibility of CRFF-OCT for evaluating vitiligo lesions following tissue grafting, our investigation involved ten vitiligo patients who underwent suction blister epidermal grafting and laser ablation at a tertiary center between 2021 and 2022. Over a six-month period, clinical features, dermoscopy, and photography data were recorded. Utilizing CRFF-OCT along with artificial intelligence (AI) applications, repigmentation features were captured and analyzed. The CRFF-OCT analysis revealed a distinct dark band in vitiligo lesion skin, indicating melanin loss. Grafted areas exhibited melanocytes with dendrites around the epidermal-dermal junction and hair follicles. CRFF-OCT demonstrated its efficacy in the early detection of melanocyte recovery and accurate melanin quantification. This study introduces CRFF-OCT as a real-time, non-invasive, and in vivo evaluation tool for assessing vitiligo repigmentation, offering valuable insights into pigmentary disorders and treatment responses.
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Affiliation(s)
- Lai-Ying Lu
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan 333423, Taiwan
- Department of Dermatology and Aesthetic Medicine Center, Jen-Ai Hospital, Taichung 412224, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
| | | | - I-Ling Chen
- Apollo Medical Optics, Ltd., Taipei 114, Taiwan
| | | | - Rosalie Tzu-Li Liu
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan 333423, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
- Vitiligo Clinic and Pigment Research Center, Chang Gung Memorial Hospital, Linkou District, New Taipei 33305, Taiwan
| | - Yi-Jing Lai
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan 333423, Taiwan
- Vitiligo Clinic and Pigment Research Center, Chang Gung Memorial Hospital, Linkou District, New Taipei 33305, Taiwan
| | - Chau Yee Ng
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan 333423, Taiwan
- Department of Dermatology and Aesthetic Medicine Center, Jen-Ai Hospital, Taichung 412224, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan
- Apollo Medical Optics, Ltd., Taipei 114, Taiwan
- Vitiligo Clinic and Pigment Research Center, Chang Gung Memorial Hospital, Linkou District, New Taipei 33305, Taiwan
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Nawaz M, Uvaliyev A, Bibi K, Wei H, Abaxi SMD, Masood A, Shi P, Ho HP, Yuan W. Unraveling the complexity of Optical Coherence Tomography image segmentation using machine and deep learning techniques: A review. Comput Med Imaging Graph 2023; 108:102269. [PMID: 37487362 DOI: 10.1016/j.compmedimag.2023.102269] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/26/2023]
Abstract
Optical Coherence Tomography (OCT) is an emerging technology that provides three-dimensional images of the microanatomy of biological tissue in-vivo and at micrometer-scale resolution. OCT imaging has been widely used to diagnose and manage various medical diseases, such as macular degeneration, glaucoma, and coronary artery disease. Despite its wide range of applications, the segmentation of OCT images remains difficult due to the complexity of tissue structures and the presence of artifacts. In recent years, different approaches have been used for OCT image segmentation, such as intensity-based, region-based, and deep learning-based methods. This paper reviews the major advances in state-of-the-art OCT image segmentation techniques. It provides an overview of the advantages and limitations of each method and presents the most relevant research works related to OCT image segmentation. It also provides an overview of existing datasets and discusses potential clinical applications. Additionally, this review gives an in-depth analysis of machine learning and deep learning approaches for OCT image segmentation. It outlines challenges and opportunities for further research in this field.
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Affiliation(s)
- Mehmood Nawaz
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Adilet Uvaliyev
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Khadija Bibi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Hao Wei
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Sai Mu Dalike Abaxi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Anum Masood
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Peilun Shi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Wu Yuan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China.
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Jann J, Gascon S, Drevelle O, Fradette J, Auclair-Gilbert M, Soucy G, Fortier LC, Faucheux N. Assessment of antibacterial properties and skin irritation potential of anodized aluminum impregnated with various quaternary ammonium. BIOMATERIALS ADVANCES 2023; 150:213433. [PMID: 37104962 DOI: 10.1016/j.bioadv.2023.213433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 04/07/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023]
Abstract
The importance of the inert environment in the transmission of pathogens has been reassessed in recent years. To reduce cross-contamination, new biocidal materials used in high touch surfaces (e.g., stair railings, door handles) have been developed. However, their impact on skin remains poorly described. The present study aimed to evaluate the antibacterial properties and the risk of skin irritation of two materials based on hard-anodized aluminum (AA) impregnated with quaternary ammonium compound solutions (QAC#1 or QAC#2). The QAC#1 or QAC#2 solutions vary in composition, QAC#2 being free of dioctyl dimethyl ammonium chloride (Dio-DAC) and octyl decyl dimethyl ammonium chloride (ODDAC). Unlike AA used as a control, both AA-QAC#1 and AA-QAC#2 had excellent and rapid antibacterial efficacy, killing 99.9 % of Staphylococcus aureus and Escherichia coli bacteria, in 15 s and 1 min, respectively. The impregnation solutions (QAC#1 and QAC#2) did not show any skin sensitizing effect on transformed human keratinocytes. Nevertheless, these solutions as well as the materials (AA-QAC#1, AA-QAC#2), and the liquid extracts derived from them, induced a very rapid cytotoxicity on L929 murine fibroblasts (>70 % after 1 h of contact) as shown by LDH, MTS and neutral red assays. This cytotoxicity can be explained by the fast QACs release occurring when AA-QAC#1 and AA-QAC#2 were immersed in aqueous medium. To overcome the limitation of assays based on liquid condition, an in vitro skin irritation assay on reconstructed human epidermis (RHE) was developed. The effect of the materials upon their direct contact with the epidermis grown at the liquid-air interface was determined by evaluating tissue viability and quantifying interleukin-1 alpha (IL-1α) which is released in skin during injury or infection. AA-QAC#1 induced a significant decrease in RHE viability, close to OECD and ISO 10993-10 acceptability thresholds and enhanced the pro-inflammatory IL-1α secretion compared with AA-QAC#2. Finally, these results were corroborated by in vivo assays on mice using erythema and edema visual scores, histological observations, and epidermal thickness measurement. AA had no effect on the skin, while a stronger irritation was induced by AA-QAC#1 compared with AA-QAC#2. Hence, these materials were classified as moderate and slight irritants, respectively. In summary, this study revealed that AA-QAC#2 without Dio-DAC and ODDAC could be a great candidate for high touch surface applications, showing an extremely effective and rapid bactericidal activity, without inducing adverse effects for skin tissue.
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Affiliation(s)
- Jessica Jann
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada; Clinical Research Center of Centre Hospitalier Universitaire de Sherbrooke, 12e avenue N, Sherbrooke, Québec J1H 5N4, Canada
| | - Suzanne Gascon
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Olivier Drevelle
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Julie Fradette
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, 1401, 18(e) rue, Québec City, Québec G1J 1Z4, Canada; Department of Surgery, Faculty of Medicine, Université Laval, 1050 avenue de la Médecine, Québec City, Québec G1V 0A6, Canada
| | | | - Gervais Soucy
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Louis-Charles Fortier
- Clinical Research Center of Centre Hospitalier Universitaire de Sherbrooke, 12e avenue N, Sherbrooke, Québec J1H 5N4, Canada; Department of Microbiology and Infectious Diseases, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3201 rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada.
| | - Nathalie Faucheux
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada; Clinical Research Center of Centre Hospitalier Universitaire de Sherbrooke, 12e avenue N, Sherbrooke, Québec J1H 5N4, Canada.
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Gil-Pallares P, Navarro-Bielsa A, González-Ruiz AA, Silvestre JF. Dermoscopy in Patch Testing: How Can It Help? ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:54-59. [PMID: 35483422 DOI: 10.1016/j.ad.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/13/2022] [Accepted: 03/14/2022] [Indexed: 01/11/2023] Open
Abstract
Interpreting patch test reactions is not easy. It requires experience and is characterized by high intraobserver and interobserver variability. It can sometimes be truly difficult to discern between a weak allergic reaction and an irritant reaction. A number of recent studies have investigated the dermoscopic features of patch test reactions. Homogeneous erythema is the main feature observed in patients with a positive allergic reaction, although dotted vessels, vesicles, crusts and yellow-orange areas may also provide clues. These features are somewhat similar to those observed in inflammatory conditions, such as eczema. In patients with an irritant reaction, the most common dermoscopic findings are the pore reaction pattern and perifollicular erythema. Dermoscopy could be useful for establishing a diagnosis in the case of doubtful patch test reactions.
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Affiliation(s)
- P Gil-Pallares
- Servicio de Dermatología, Complejo Hospitalario Universitario de Ferrol, Ferrol, España.
| | - A Navarro-Bielsa
- Servicio de Dermatología, Hospital Universitario Miguel Servet, Zaragoza, España
| | - A A González-Ruiz
- Servicio de Dermatología, Hospital General Universitario de Alicante, Alicante, España
| | - J F Silvestre
- Servicio de Dermatología, Hospital General Universitario de Alicante, Alicante, España
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[Translated article] Dermoscopy in Patch Testing: How Can It Help? ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:T54-T59. [PMID: 36370833 DOI: 10.1016/j.ad.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 03/14/2022] [Indexed: 11/11/2022] Open
Abstract
Interpreting patch test reactions is not easy. It requires experience and is characterized by high intraobserver and interobserver variability. It can sometimes be truly difficult to discern between a weak allergic reaction and an irritant reaction. A number of recent studies have investigated the dermoscopic features of patch test reactions. Homogeneous erythema is the main feature observed in patients with a positive allergic reaction, although dotted vessels, vesicles, crusts and yellow-orange areas may also provide clues. These features are somewhat similar to those observed in inflammatory conditions, such as eczema. In patients with an irritant reaction, the most common dermoscopic findings are the pore reaction pattern and perifollicular erythema. Dermoscopy could be useful for establishing a diagnosis in the case of doubtful patch test reactions.
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Abstract
During the past decade, noninvasive imaging has emerged as a valuable tool in clinical dermatology and dermatologic research. Optical coherence tomography (OCT) is one such type of noninvasive imaging. OCT uses the principle of interferometry to produce real-time images. A low-power diode laser shines infrared light onto tissues, which reflects back to an optical fiber interferometer. Using time delay and the backscattered light intensity, a two-dimensional image akin to an ultrasound is rendered. We review the history, types, and modalities of OCT, plus the many applications of frequency domain, high definition, and dynamic OCT in practice, including its utility in diagnosis, monitoring, and grading disease severity in a variety of cutaneous conditions.
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Affiliation(s)
- Corinna E Psomadakis
- Department of Medicine, Mount Sinai West and Morningside, New York, New York, USA
| | - Nadeem Marghoob
- University of Vermont Medical Center, Department of Dermatology, Burlington, VT
| | - Brady Bleicher
- Department of Dermatology, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Orit Markowitz
- Department of Dermatology, SUNY Downstate Medical Center, Brooklyn, New York, USA.
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Guida S, Longhitano S, Ardigò M, Pampena R, Ciardo S, Bigi L, Mandel VD, Vaschieri C, Manfredini M, Pezzini C, Arginelli F, Farnetani F, Zerbinati N, Longo C, Pellacani G. Dermoscopy, confocal microscopy and optical coherence tomography features of main inflammatory and autoimmune skin diseases: A systematic review. Australas J Dermatol 2021; 63:15-26. [PMID: 34423852 DOI: 10.1111/ajd.13695] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/26/2021] [Accepted: 08/07/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND/OBJECTIVES Non-invasive skin imaging features of main skin inflammatory and autoimmune diseases have been reported, although a comprehensive review of their correlation with histopathologic features is currently lacking. Therefore, the aim of this paper was to review the correlation of dermoscopic, reflectance confocal microscopy (RCM) and optical coherence tomography (OCT) criteria of main inflammatory and autoimmune skin diseases with their corresponding histopathologic criteria correlation. METHODS Studies on human subjects affected by main inflammatory and autoimmune diseases, defining the correlation of dermoscopic, RCM or OCT with histopathologic criteria, were included in the review. Five groups of diseases were identified and described: psoriasiform, spongiotic and interface dermatitis, bullous diseases and scleroderma. RESULTS Psoriasiform dermatitis was typified by white scales, corresponding to hyperkeratosis, and vessels, observed with RCM and OCT. Spongiosis, corresponding to dark areas within the epidermis with RCM and OCT, was the main feature of spongiotic dermatitis. Interface dermatitis was characterised by dermoepidermal junction obscuration. Blisters, typical of bullous diseases, were visualised as dark areas with RCM and OCT while scleroderma lesions were characterised by dermoscopic fibrotic beams, related to dermal thickness variations, with specific OCT and histopathologic correlations. CONCLUSIONS Although the role of RCM and OCT has yet to be defined in clinical practice, non-invasive skin imaging shows promising results on inflammatory and autoimmune skin diseases, due to the correlation with histopathologic features.
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Affiliation(s)
- Stefania Guida
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Sabrina Longhitano
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Ardigò
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Riccardo Pampena
- Dermatology and Skin Cancer Unit, First Medical Department, Arcispedale Santa Maria Nuova, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Reggio Emilia, Italy
| | - Silvana Ciardo
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura Bigi
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Victor Desmond Mandel
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.,Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Cristina Vaschieri
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Manfredini
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Claudia Pezzini
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Federica Arginelli
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Farnetani
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Caterina Longo
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.,Dermatology and Skin Cancer Unit, First Medical Department, Arcispedale Santa Maria Nuova, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Reggio Emilia, Italy
| | - Giovanni Pellacani
- Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.,Dermatology Clinic, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
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Csuka EA, Ward SC, Ekelem C, Csuka DA, Ardigò M, Mesinkovska NA. Reflectance Confocal Microscopy, Optical Coherence Tomography, and Multiphoton Microscopy in Inflammatory Skin Disease Diagnosis. Lasers Surg Med 2021; 53:776-797. [PMID: 33527483 DOI: 10.1002/lsm.23386] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Technological advances in medicine have brought about many novel skin imaging devices. This review aims to evaluate the scientific evidence supporting the use of noninvasive optical imaging techniques to aid in the diagnosis and prognosis of inflammatory skin diseases. STUDY DESIGN/MATERIALS AND METHODS PubMed and Scopus were searched in September 2020 according to PRISMA guidelines for articles using reflectance confocal microscopy (RCM), optical coherence tomography (OCT), and multiphoton microscopy (MPM) in inflammatory skin diseases, excluding studies monitoring treatment efficacy. RESULTS At the time of the study, there were 66 articles that addressed the utilization of noninvasive imaging in interface, spongiotic, psoriasiform, vesiculobullous, and fibrosing/sclerosing inflammatory skin dermatoses: RCM was utilized in 46, OCT in 16, and MPM in 5 articles. RCM was most investigated in psoriasiform dermatoses, whereas OCT and MPM were both most investigated in spongiotic dermatoses, including atopic dermatitis and allergic contact dermatitis. CONCLUSIONS There is preliminary evidence to support the diagnostic potential of noninvasive optical imaging techniques in inflammatory skin diseases. Improvements in the devices and further correlation with histology will help broaden their utility. Additional studies are needed to determine the parameters for diagnostic features, disease differentiation, and staging of inflammatory skin conditions. Lasers Surg. Med. © 2021 Wiley Periodicals LLC.
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Affiliation(s)
- Ella A Csuka
- Department of Dermatology, University of California, Irvine, Irvine, California, 92697
| | - Suzanne C Ward
- Department of Dermatology, University of California, Irvine, Irvine, California, 92697
| | - Chloe Ekelem
- Department of Dermatology, University of California, Irvine, Irvine, California, 92697
| | - David A Csuka
- Department of Dermatology, University of California, Irvine, Irvine, California, 92697
| | - Marco Ardigò
- San Gallicano Dermatological Institute-IRCCS, Via Chianesi 53, Rome, 00144, Italy
| | - Natasha A Mesinkovska
- Department of Dermatology, University of California, Irvine, Irvine, California, 92697
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12
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Brans R, John SM, Frosch PJ. Clinical Aspects of Irritant Contact Dermatitis. Contact Dermatitis 2021. [DOI: 10.1007/978-3-030-36335-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Fluhr JW, Darlenski R. Noninvasive Techniques for Quantification of Contact Dermatitis. Contact Dermatitis 2021. [DOI: 10.1007/978-3-030-36335-2_63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Wan B, Ganier C, Du-Harpur X, Harun N, Watt FM, Patalay R, Lynch MD. Applications and future directions for optical coherence tomography in dermatology. Br J Dermatol 2020; 184:1014-1022. [PMID: 32974943 DOI: 10.1111/bjd.19553] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2020] [Indexed: 12/24/2022]
Abstract
Optical coherence tomography (OCT) is a noninvasive optical imaging method that can generate high-resolution en face and cross-sectional images of the skin in vivo to a maximum depth of 2 mm. While OCT holds considerable potential for noninvasive diagnosis and disease monitoring, it is poorly understood by many dermatologists. Here we aim to equip the practising dermatologist with an understanding of the principles of skin OCT and the potential clinical indications. We begin with an introduction to the technology and discuss the different modalities of OCT including angiographic (dynamic) OCT, which can image cutaneous blood vessels at high resolution. Next we review clinical applications. OCT has been most extensively investigated in the diagnosis of keratinocyte carcinomas, particularly basal cell carcinoma. To date, OCT has not proven sufficiently accurate for the robust diagnosis of malignant melanoma; however, the evaluation of abnormal vasculature with angiographic OCT is an area of active investigation. OCT, and in particular angiographic OCT, also shows promise in monitoring the response to therapy of inflammatory dermatoses, such as psoriasis and connective tissues disease. We additionally discuss a potential role for artificial intelligence in improving the accuracy of interpretation of OCT imaging data.
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Affiliation(s)
- B Wan
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - C Ganier
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - X Du-Harpur
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK.,The Francis Crick Institute, 1 Midland Road, London, UK
| | - N Harun
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - F M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - R Patalay
- St John's Institute of Dermatology, King's College London, London, UK
| | - M D Lynch
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK.,St John's Institute of Dermatology, King's College London, London, UK
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15
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Ruini C, Rahimi F, Fiocco Z, French LE, Hartmann D, Oppel E, Sattler E. Optical coherence tomography for patch test grading: A prospective study on its use for noninvasive diagnosis of allergic contact dermatitis. Contact Dermatitis 2020; 84:183-191. [PMID: 33012002 DOI: 10.1111/cod.13714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/27/2020] [Accepted: 10/01/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND The diagnosis of allergic contact dermatitis should be confirmed by skin patch tests. Distinguishing between irritant and allergic reactions is sometimes difficult. OBJECTIVES To analyse the in vivo morphological changes in patch test reactions compared to healthy skin, and to detect subclinical changes in doubtful reactions using optical coherence tomography (OCT). To develop an OCT-based algorithm to support patch-test grading. METHODS One hundred twenty-nine skin patch-test areas were scanned with OCT to evaluate the following features: architectural and vascular morphology, epidermal thickness, optical attenuation coefficient (AC), and blood flow at 0.1, 0.2, and 0.35 mm depth. RESULTS Most common OCT features of acute contact allergic reactions in patch tests were spongiosis with microvesicles (94.8%), macrovesicles (60.3%), and coalescing vesicles (46.6%), the latter useful in differentiating acute allergic from irritant dermatitis (P-value < .05). Objective quantitative parameters correlated well with the severity grade: epidermal thickness due to spongiosis, AC (P-value < .05) and blood flow at 0.2 and 0.35 mm (P-value < .01). CONCLUSIONS OCT as a noninvasive diagnostic tool, established for skin cancer diagnosis, is useful for evaluating contact allergic patch-test reactions. Not only morphological but also objective features such as blood flow and AC correlate with the reaction severity. Further studies are needed to explore the differences in irritant and allergic contact dermatitis.
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Affiliation(s)
- Cristel Ruini
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany.,Department of Dermatology and PhD Program in Clinical and Experimental Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Farnaz Rahimi
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Zeno Fiocco
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Lars E French
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany.,Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Daniela Hartmann
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Eva Oppel
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Elke Sattler
- Department of Dermatology and Allergy, University Hospital, Ludwig Maximilian University, Munich, Germany
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16
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Du T, Mishra DK, Shmuylovich L, Yu A, Hurbon H, Wang ST, Berezin MY. Hyperspectral imaging and characterization of allergic contact dermatitis in the short-wave infrared. JOURNAL OF BIOPHOTONICS 2020; 13:e202000040. [PMID: 32418362 PMCID: PMC7549435 DOI: 10.1002/jbio.202000040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
Short-wave infrared hyperspectral imaging is applied to diagnose and monitor a case of allergic contact dermatitis (ACD) due to poison ivy exposure in one subject. This approach directly demonstrates increased tissue fluid content in ACD lesional skin with a spectral signature that matches the spectral signature of intradermally injected normal saline. The best contrast between the affected and unaffected skin is achieved through a selection of specific wavelengths at 1070, 1340 and 1605 nm and combining them in a pseudo-red-green-blue color space. An image derived from these wavelengths normalized to unaffected skin defines a "tissue fluid index" that may aid in the quantitative diagnosis and monitoring of ACD. Further clinical testing of this promising approach towards disease detection and monitoring with tissue fluid content quantification is warranted.
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Affiliation(s)
- Tommy Du
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Deependra K. Mishra
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Leonid Shmuylovich
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
- Division of Dermatology, Washington University School of Medicine, St. Louis, Missouri
| | - Andy Yu
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Helena Hurbon
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Steven T. Wang
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Mikhail Y. Berezin
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri
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17
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Hindelang B, Aguirre J, Berezhnoi A, He H, Eyerich K, Ntziachristos V, Biedermann T, Darsow U. Optoacoustic mesoscopy shows potential to increase accuracy of allergy patch testing. Contact Dermatitis 2020; 83:206-214. [DOI: 10.1111/cod.13563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Benedikt Hindelang
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Juan Aguirre
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Andrei Berezhnoi
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Hailong He
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Kilian Eyerich
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging and TranslaTUMTechnical University of Munich Munich Germany
- Institute of Biological and Medical ImagingHelmholtz Zentrum München Munich Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
| | - Ulf Darsow
- Department of Dermatology and Allergy, Faculty of MedicineTechnical University of Munich Munich Germany
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18
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Veverka KK, Davis MDP. Dubiously Doubtful: An Exploration of the Literature Concerning Doubtful, Macular Erythema, “?+,” and “+/−” Patch Test Reactions. Dermatitis 2020; 31:36-41. [DOI: 10.1097/der.0000000000000533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Fluhr JW, Darlenski R. Noninvasive Techniques for Quantification of Contact Dermatitis. Contact Dermatitis 2020. [DOI: 10.1007/978-3-319-72451-5_63-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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20
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Corazza M, Toni G, Scuderi V, Forconi R, Borghi A. Patch test reactions through the lens of dermoscopy: Further insights, particularly on weak allergic reactions. Contact Dermatitis 2019; 81:417-425. [DOI: 10.1111/cod.13367] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Monica Corazza
- Section of Dermatology and Infectious Diseases, Department of Medical SciencesUniversity of Ferrara Ferrara Italy
| | - Giulia Toni
- Section of Dermatology and Infectious Diseases, Department of Medical SciencesUniversity of Ferrara Ferrara Italy
| | - Valeria Scuderi
- Section of Dermatology and Infectious Diseases, Department of Medical SciencesUniversity of Ferrara Ferrara Italy
| | - Riccardo Forconi
- Section of Dermatology and Infectious Diseases, Department of Medical SciencesUniversity of Ferrara Ferrara Italy
| | - Alessandro Borghi
- Section of Dermatology and Infectious Diseases, Department of Medical SciencesUniversity of Ferrara Ferrara Italy
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21
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Ruini C, Wittmann D, Summer B, von Braunmühl T, French L, Thomas P. Nickel contact dermatitis evaluated by means of optical coherence tomography: first impressions. J Eur Acad Dermatol Venereol 2019; 33:e265-e267. [DOI: 10.1111/jdv.15536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Ruini
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
- Department of Dermatology München Klinik GmbH – Munich Municipal Hospital Thalkirchnerstrasse 48, 80337 Munich Germany
| | - D. Wittmann
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
| | - B. Summer
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
| | - T. von Braunmühl
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
| | - L.E. French
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
| | - P. Thomas
- Department of Dermatology and Allergology University Hospital of the Ludwig Maximilian University Frauenlobstr.9‐11, 80337 Munich Germany
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22
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Rajabi‐Estarabadi A, Tsang DC, Nouri K, Tosti A. Evaluation of positive patch test reactions using optical coherence tomography: A pilot study. Skin Res Technol 2019; 25:625-630. [DOI: 10.1111/srt.12695] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 02/16/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Ali Rajabi‐Estarabadi
- Dr.Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of Medicine Miami Florida USA
| | - Darren C. Tsang
- Dr.Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of Medicine Miami Florida USA
| | - Keyvan Nouri
- Dr.Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of Medicine Miami Florida USA
| | - Antonella Tosti
- Dr.Phillip Frost Department of Dermatology and Cutaneous SurgeryUniversity of Miami Miller School of Medicine Miami Florida USA
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23
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Brans R, John SM, Frosch PJ. Clinical Aspects of Irritant Contact Dermatitis. Contact Dermatitis 2019. [DOI: 10.1007/978-3-319-72451-5_16-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Abstract
PURPOSE OF REVIEW To summarize the current knowledge on the morphology, functionality and biochemical composition of the skin in allergic reactions. We address novel noninvasive techniques that promise to disclose intimate mechanisms of skin allergy in vivo. Epidermal barrier is not just a static wrap of the organism but rather a dynamic field for immunological, biophysical and biochemical processes and serves as a bio-sensor for exogenous danger signals. RECENT FINDINGS Classical biophysical methods are amended by novel in-vivo techniques, such as Raman spectroscopy, analysing the skin microcomposition and develop epidermal profiles. Visualization techniques, such as reflectance spectroscopy and optical coherence tomography (OCT) are employed in studying the micro-morphological changes in the skin of allergic patients. SUMMARY The noninvasive assessment of skin functions, micro-morphology and biochemical as well as immunological pathways will help to better understand skin allergies. They will allow to detect subtypes, for example in atopic dermatitis and to develop specific treatment modalities.
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25
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Olsen J, Holmes J, Jemec GB. Advances in optical coherence tomography in dermatology-a review. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-10. [PMID: 29701018 DOI: 10.1117/1.jbo.23.4.040901] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 03/26/2018] [Indexed: 05/24/2023]
Abstract
Optical coherence tomography (OCT) was introduced as an imaging system, but like ultrasonography, other measures, such as blood perfusion and polarization of light, have enabled the technology to approach clinical utility. This review aims at providing an overview of the advances in clinical research based on the improving technical aspects. OCT provides cross-sectional and en face images down to skin depths of 0.4 to 2.00 mm with optical resolution of 3 to 15 μm. Dynamic optical coherence tomography (D-OCT) enables the visualization of cutaneous microvasculature via detection of rapid changes in the interferometric signal of blood flow. Nonmelanoma skin cancer (NMSC) is the most comprehensively investigated topic, resulting in improved descriptions of morphological features and diagnostic criteria. A refined scoring system for diagnosing NMSC, taking findings from conventional and D-OCT into account, is warranted. OCT diagnosis of melanoma is hampered by the resolution and the optical properties of melanin. D-OCT may be of value in diseases characterized with dynamic changes in the vasculature of the skin and the addition of functional measures is strongly encouraged. In conclusion, OCT in dermatology is still an emerging technology that has great potential for improving further in the future.
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Affiliation(s)
| | - Jon Holmes
- Michelson Diagnostics Ltd., United Kingdom
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26
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Shin EJ, Gwak MJ, Jeong KH, Shin MK. Lack of differentiation of allergic and irritant reactions by skin autofluorescence. Contact Dermatitis 2017; 76:318-321. [PMID: 28386970 DOI: 10.1111/cod.12708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 12/01/2022]
Affiliation(s)
- Eun Jae Shin
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, 02447, Korea
| | - Min Jae Gwak
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, 02447, Korea
| | - Ki Heon Jeong
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, 02447, Korea
| | - Min Kyung Shin
- Department of Dermatology, College of Medicine, Kyung Hee University, Seoul, 02447, Korea
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27
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Kostner L, Anzengruber F, Guillod C, Recher M, Schmid-Grendelmeier P, Navarini AA. Allergic Contact Dermatitis. Immunol Allergy Clin North Am 2017; 37:141-152. [DOI: 10.1016/j.iac.2016.08.014] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Boone MALM, Suppa M, Dhaenens F, Miyamoto M, Marneffe A, Jemec GBE, Del Marmol V, Nebosis R. In vivo assessment of optical properties of melanocytic skin lesions and differentiation of melanoma from non-malignant lesions by high-definition optical coherence tomography. Arch Dermatol Res 2015; 308:7-20. [PMID: 26563265 PMCID: PMC4713458 DOI: 10.1007/s00403-015-1608-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/11/2015] [Accepted: 10/19/2015] [Indexed: 12/03/2022]
Abstract
One of the most challenging problems in clinical dermatology is the early detection of melanoma. Reflectance confocal microscopy (RCM) is an added tool to dermoscopy improving considerably diagnostic accuracy. However, diagnosis strongly depends on the experience of physicians. High-definition optical coherence tomography (HD-OCT) appears to offer additional structural and cellular information on melanocytic lesions complementary to that of RCM. However, the diagnostic potential of HD-OCT seems to be not high enough for ruling out the diagnosis of melanoma if based on morphology analysis. The aim of this paper is first to quantify in vivo optical properties such as light attenuation in melanocytic lesions by HD-OCT. The second objective is to determine the best critical value of these optical properties for melanoma diagnosis. The technique of semi-log plot whereby an exponential function becomes a straight line has been implemented on HD-OCT signals coming from four successive skin layers (epidermis, upper papillary dermis, deeper papillary dermis and superficial reticular dermis). This permitted the HD-OCT in vivo measurement of skin entrance signal (SES), relative attenuation factor normalized for the skin entrance signal (µraf1) and half value layer (z1/2). The diagnostic accuracy of HD-OCT for melanoma detection based on the optical properties, µraf1, SES and z1/2 was high (95.6, 82.2 and 88.9 %, respectively). High negative predictive values could be found for these optical properties (96.7, 89.3 and 96.3 %, respectively) compared to morphologic assessment alone (89.9 %), reducing the risk of mistreating a malignant lesion to a more acceptable level (3.3 % instead of 11.1 %). HD-OCT seems to enable the combination of in vivo morphological analysis of cellular and 3-D micro-architectural structures with in vivo analysis of optical properties of tissue scatterers in melanocytic lesions. In vivo HD-OCT analysis of optical properties permits melanoma diagnosis with higher accuracy than in vivo HD-OCT analysis of morphology alone.
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Affiliation(s)
- M A L M Boone
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium.
| | - M Suppa
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium
| | - F Dhaenens
- Research Department, Agfa HealthCare, Mortsel, Belgium
| | - M Miyamoto
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium
| | - A Marneffe
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium
| | - G B E Jemec
- Department of Dermatology, Roskilde Hospital, University of Copenhagen, Roskilde, Denmark
| | - V Del Marmol
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium
| | - R Nebosis
- Research Department, Agfa HealthCare, Munich, Germany
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High-definition optical coherence tomography intrinsic skin ageing assessment in women: a pilot study. Arch Dermatol Res 2015; 307:705-20. [PMID: 26066511 PMCID: PMC4572052 DOI: 10.1007/s00403-015-1575-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 04/19/2015] [Accepted: 05/14/2015] [Indexed: 11/06/2022]
Abstract
Several non-invasive two-dimensional techniques with different lateral resolution and measurable depth range have proved to be useful in assessing and quantifying morphological changes in skin ageing. Among these, only in vivo microscopy techniques permit histometric measurements in vivo. Qualitative and quantitative assessment of chronological (intrinsic) age-related (IAR) morphological changes of epidermis, dermo-epidermal junction (DEJ), papillary dermis (PD), papillary-reticular dermis junction and reticular
dermis (RD) have been performed by high-definition optical coherence tomography in real time 3-D. HD-OCT images were taken at the internal site of the right upper arm. Qualitative HD-OCT IAR descriptors were reported at skin surface, at epidermal layer, DEJ, PD and upper RD. Quantitative evaluation of age-related compaction and backscattered intensity or brightness of different skin layers was performed by using the plugin plot z-axis profile of ImageJ® software permitting intensity assessment of HD-OCT (DICOM) images (3-D images). Analysis was in blind from all clinical information. Sixty, fair-skinned (Fitzpatrick types I–III) healthy females were analysed retrospectively in this study. The subjects belonged to three age groups: twenty in group I aged 20–39, twenty in group II aged 40–59 and twenty in group III aged 60–79. Only intrinsic ageing in women has been studied. Significant age-related qualitative and quantitative differences could be noticed. IAR changes in dermal matrix fibers morphology/organisation and in microvasculature were observed. The brightness and compaction of the different skin layers increased significantly with intrinsic skin ageing. The depth of visibility of fibers in RD increased significantly in the older age group. In conclusion, HD-OCT allows 3-D in vivo and real time qualitative and quantitative assessment of chronological (intrinsic) age-related morphological skin changes at high resolution from skin surface to a depth of the superficial reticular dermis.
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30
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La tomographie par cohérence optique à haute définition : présentation de la technique et applications en dermatologie. Ann Dermatol Venereol 2015; 142:452-5. [DOI: 10.1016/j.annder.2015.02.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 02/10/2015] [Accepted: 02/20/2015] [Indexed: 11/18/2022]
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