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Cantisani C, Musolff N, Longo C, Di Guardo A, Rovaldi E, Rossi G, Sasso F, Farnetani F, Rega F, Bánvölgyiv A, Azzella G, Paolino G, Pellacani G. Dynamic optical coherence tomography evaluation in locally advanced basal cell carcinoma during sonidegib treatment. J Eur Acad Dermatol Venereol 2024; 38:967-973. [PMID: 38270330 DOI: 10.1111/jdv.19806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/06/2023] [Indexed: 01/26/2024]
Abstract
BACKGROUND Basal cell carcinoma (BCC) is the most common cancer in the Caucasian population. It has a multifactorial pathogenesis, in which constitutive activation of the Sonic Hedgehog signalling (SHH) pathway (via mutations in PTCH1 or SMO genes) represents by far the most common genetic aberration. The introduction of vismodegib and sonidegib, two SHH pathway inhibitors, changed the therapeutic approach of locally advanced and metastatic BCCs. EADO's (European Association of Dermato-Oncology) new staging system refers to these as 'difficult-to-treat' BCCs. OBJECTIVE The aim was to evaluate sonidegib's effectiveness in patients affected by difficult-to-treat BCCs by using non-invasive diagnostic techniques. METHODS We retrospectively evaluated 14 patients (4 females, 10 males; mean age 77 ± 11 years) affected by difficult-to-treat BCCs treated with oral sonidegib 200 mg/day that were followed with total body videodermoscopy (V-Track, Vidix 4.0) and dynamic optical coherence tomography (D-OCT, VivoSight Dx) since May 2022. Considering the risk of rhabdomyolysis routine blood tests, especially for creatine kinase concentrations, were performed. All treated patients were inserted in the BasoCare database, which aims to offer support to patients taking sonidegib. Complete and partial responses were evaluated by the overall reduction of the number of lesions and their individual sizes. Safety was evaluated by assessing the occurrence and severity of adverse reactions. RESULTS Eighty per cent achieved complete clearance and 75% reduction of diameter. D-OCT scans performed at every follow-up showed concordance with clinical appearance and demonstrated reduction of hyporeflective structures, that is, islets of tumour cells and overall improvement of morphology. CONCLUSION Sonidegib can be considered an effective treatment option in cases where surgery or radiotherapy would be unfeasible or has previously failed, although pigmented lesions did not show complete clearance, suggesting that there are factors other than the SHH pathway involved in tumour growth. Videodermoscopy and D-OCT were useful in the quick and seamless follow-up of lesions and added valuable information in assessing efficacy.
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Affiliation(s)
- C Cantisani
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - N Musolff
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - C Longo
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
- Dermatology Department, University of Modena and Reggio, Emilia, Italy
| | - A Di Guardo
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - E Rovaldi
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - G Rossi
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - F Sasso
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - F Farnetani
- Dermatology Unit, Department of Surgical, Medical and Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - F Rega
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - A Bánvölgyiv
- Department of Dermatology, Venereology and Dermato-oncology, Semmelweis University, Budapest, Hungary
| | - G Azzella
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
| | - G Paolino
- Unit of Dermatology, IRCCS, Ospedale San Raffaele, Milano, Italy
- Unit of Dermatologic Clinic, Università Vita-Salute San Raffaele, Milano, Italy
| | - G Pellacani
- UOC of Dermatology, Policlinico Umberto I Hospital, Sapienza Medical School of Rome, Rome, Italy
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Akella SS, Lee J, May JR, Puyana C, Kravets S, Dimitropolous V, Tsoukas M, Manwar R, Avanaki K. Using optical coherence tomography to optimize Mohs micrographic surgery. Sci Rep 2024; 14:8900. [PMID: 38632358 PMCID: PMC11024158 DOI: 10.1038/s41598-024-53457-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 01/31/2024] [Indexed: 04/19/2024] Open
Abstract
Mohs micrographic surgery (MMS) is considered the gold standard for treating high-risk cutaneous basal cell carcinoma (BCC), but is expensive, time-consuming, and can be unpredictable as to how many stages will be required or how large the final lesion and corresponding surgical defect will be. This study is meant to investigate whether optical coherence tomography (OCT), a highly researched modality in dermatology, can be used preoperatively to map out the borders of BCC, resulting in fewer stages of MMS or a smaller final defect. In this prospective study, 22 patients with BCC undergoing surgical excision were enrolled at a single institution. All patients had previously received a diagnostic biopsy providing confirmation of BCC and had been referred to our center for excision with MMS. Immediately prior to performing MMS, OCT was used to map the borders of the lesion. MMS then proceeded according to standard protocol. OCT images were compared to histopathology for agreement. Histopathologic analysis of 7 of 22 MMS specimens (32%) revealed a total absence of BCC, indicating resolution of BCC after previous diagnostic biopsy. This outcome was correctly predicted by OCT imaging in 6 of 7 cases (86%). Nine tumors (9/22, 41%) had true BCC and required a single MMS stage, which was successfully predicted by pre-operative OCT analysis in 7 of 9 cases (78%). The final six tumors (27%) had true BCC and required two MMS stages for complete excision; preoperative OCT successfully predicted the need for a second stage in five cases (5/6, 83.3%). Overall, OCT diagnosed BCC with 95.5% accuracy (Cohen's kappa, κ = 0.89 (p-value = < 0.01) in the center of the lesion. Following a diagnostic biopsy, OCT can be used to verify the existence or absence of residual basal cell carcinoma. When residual tumor is present that requires excision with MMS, OCT can be used to predict tumor borders, optimize surgery and minimize the need for additional surgical stages.
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Affiliation(s)
- Sruti S Akella
- Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA
- Department of Ophthalmology and Visual Sciences, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Jenna Lee
- Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA
| | - Julia Roma May
- School of Medicine, University of Illinois-Chicago, Chicago, IL, USA
| | - Carolina Puyana
- Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA
| | - Sasha Kravets
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois-Chicago, Chicago, IL, USA
| | | | - Maria Tsoukas
- Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA
| | - Rayyan Manwar
- Department of Biomedical Engineering, University of Illinois-Chicago, Chicago, IL, USA
| | - Kamran Avanaki
- Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA.
- Department of Biomedical Engineering, University of Illinois-Chicago, Chicago, IL, USA.
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Michelini S, Mandel VD, Ardigò M, Ciardo S, Cota C, Cesinaro AM, Rossi E, Ferrari B, Kaleci S, Di Fraia M, Chello C, Cantisani C, Trovato F, Longo C, Pellacani G. Combining Reflectance Confocal Microscopy, Optical Coherence Tomography and Ex-Vivo Fluorescence Confocal Microscopy for Margin Assessment in Basal Cell Carcinoma Excision. Dermatol Pract Concept 2024; 14:dpc.1402a90. [PMID: 38810079 PMCID: PMC11136106 DOI: 10.5826/dpc.1402a90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 05/31/2024] Open
Abstract
INTRODUCTION Recent developments of noninvasive, high-resolution imaging techniques, such as reflectance confocal microscopy (RCM) and optical coherence tomography (OCT), have enhanced skin cancer detection and precise tumor excision particularly in highly aggressive and poorly defined basal cell carcinomas (BCCs). OBJECTIVES The aim of this pilot study is to assess the feasibility and reproducibility of a systematic clinical workflow combining noninvasive (RCM-OCT) and invasive fluorescence confocal microscopy (FCM) imaging modalities in pre- and intra-surgical evaluations of the lateral and deep margins of BCC. METHODS Superficial incisions were made 2 mm beyond the clinical-dermoscopic BCC margins. Lateral margins were then explored with OCT and RCM. In positive margins, a further cut was made 2 mm distal from the previous. A final RCM/OCT-based double-negative margin was drawn around the entire perimeter of the lesion before referring to surgery. The freshly excised specimen was then examined with FCM (ex-vivo) for the evaluation of the deep margin. Histopathologic examination eventually confirmed margin involvement. RESULTS The study included 22 lesions from 13 patients. At the end of the study, 146 margins-106 negative (73%) and 40 positive (27%) at RCM/OCT-were collected. The RCM/OCT margin evaluation showed an overall sensitivity of 100% and a specificity of 96.3%. The overall positive margins diagnostic accuracy was 98.2%. Reproducibility was evaluated on recorded images and the raters showed a substantial inter-observer agreement on both RCM (κ = 0.752) and OCT images (κ = 0.724). CONCLUSIONS The combined RCM/OCT/FCM ex-vivo approach noninvasively facilitates the presurgical and intrasurgical lateral and deep margin assessment of poorly defined BCCs.
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Affiliation(s)
- Simone Michelini
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
| | - Victor Desmond Mandel
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Marco Ardigò
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Silvana Ciardo
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Carlo Cota
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Anna Maria Cesinaro
- Department of Anatomic Pathology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Elena Rossi
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Barbara Ferrari
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Shaniko Kaleci
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Di Fraia
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
| | - Camilla Chello
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
| | - Carmen Cantisani
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
| | - Federica Trovato
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
| | - Caterina Longo
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Centro Oncologico ad Alta Tecnologia Diagnostica, Azienda Unità Sanitaria Locale - IRCCS, Reggio Emilia, Italy
| | - Giovanni Pellacani
- Dermatologic Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, La Sapienza University of Rome, Rome, Italy
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Liang JF, Feng MC, Wang J, Chen DX, Guan JY, Luo PP. Usefulness of Shear Wave Elastography in Determining the Tumor Extent of Basal Cell Carcinomas. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:971-976. [PMID: 36149339 DOI: 10.1002/jum.16104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/29/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES The purpose of this study was to investigate the value of shear wave elastography (SWE) in determining tumor extent of basal cell carcinomas (BCC), and thereby determine the optimal surgical margins (OSM). METHODS 10 patients (40 surgical margins) with BCC were collected, the visual observation boundaries (VOB) were marked, and the SWE parameters of soft tissues were measured 1 mm intervals in "3, 6, 9, 12" clock directions, starting from VOB. Then tumors were resected with a 5 mm surgical margin outward expansion of VOB. All specimens were examined pathologically 1 mm intervals from VOB in four clock directions. With the positive margins furthest from the tumor as the real tumor boundaries (RTB) and the negative margins closest to the tumor as the optimal surgical margins (OSM). The SWE parameters were compared between these two groups. RESULTS The elasticity ratio (Eratio ) of average young's modulus between region of interest and adjacent normal soft tissue had statistically significant differences between groups (P = .000), while other parameters show no difference. The Eratio of RTB and OSM were 1.22 ± 0.14 and 0.99 ± 0.07. The area under the ROC curve was .947. Taking 1.075 as the threshold of Eratio for the diagnosis of tumor extent, the sensitivity, specificity and accuracy were 87.5%, 90.0% and 90.0%. The surgical margins designed according to OSM were better than those designed according to VOB + 5 mm (P = .000). CONCLUSIONS The Eratio of SWE is helpful in determining tumor extent of BCC. This is beneficial for surgical margin designing.
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Affiliation(s)
- Jian-Feng Liang
- Department of Ultrasound, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
| | - Ming-Chu Feng
- Department of Ultrasound, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
| | - Jing Wang
- Department of Pathology, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
| | - Dong-Xiang Chen
- Department of Dermatology, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
| | - Jian-Ying Guan
- Department of Dermatology, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
| | - Ping-Ping Luo
- Department of Ultrasound, Hospital of Traditional Chinese Medicine of Zhongshan, Zhongshan, China
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Holm KBE, Nielsen LJ, Lock-Andersen J, Behrendt N, Svensson MS, Themstrup L, Jemec GBE. Optical coherence tomography for presurgical delineation of basal cell carcinomas on the face-A comparison with histopathology. J Cutan Pathol 2023; 50:441-449. [PMID: 36794511 DOI: 10.1111/cup.14412] [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: 01/26/2022] [Revised: 02/10/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023]
Abstract
BACKGROUND To minimize the risk of incomplete excision of basal cell carcinomas (BCC) the macroscopic tumor margins should be adequately defined. Optical coherence tomography (OCT) is a non-invasive imaging tool that can provide structural and vascular information about skin cancer lesions. The study objective was to compare the presurgical delineation of facial BCC by clinical examination, histopathology, and OCT imaging in tumors undergoing full excision. METHODS Ten patients with BCC lesions on the face were examined clinically, with OCT and histopathology at 3-mm intervals, from the clinical lesion border and beyond the resection line. The OCT scans were evaluated blinded and a delineation estimate of each BCC lesion was made. The results were compared to the clinical and histopathologic results. RESULTS OCT evaluations and histopathology were in agreement in 86.6% of the collected data points. In three cases the OCT scans estimated a reduction of the tumor size compared to the clinical tumor border set by the surgeon. CONCLUSION The results of this study support the notion that OCT can have a role in the clinical daily practice by aiding clinicians in delineating BCC lesions before surgery.
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Affiliation(s)
- K B E Holm
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark.,Health Sciences Faculty, University of Copenhagen, Copenhagen, Denmark
| | - L J Nielsen
- Department of Plastic and Breast Surgery, Zealand University Hospital, Roskilde, Denmark
| | - J Lock-Andersen
- Department of Plastic and Breast Surgery, Zealand University Hospital, Roskilde, Denmark
| | - N Behrendt
- Department of Pathology, Zealand University Hospital, Roskilde, Denmark
| | - M S Svensson
- Department of Pathology, Zealand University Hospital, Roskilde, Denmark
| | - L Themstrup
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark.,Health Sciences Faculty, University of Copenhagen, Copenhagen, Denmark
| | - G B E Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark.,Health Sciences Faculty, University of Copenhagen, Copenhagen, Denmark
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Janowska A, Oranges T, Granieri G, Romanelli M, Fidanzi C, Iannone M, Dini V. Non-invasive imaging techniques in presurgical margin assessment of basal cell carcinoma: Current evidence. Skin Res Technol 2023; 29:e13271. [PMID: 36823508 PMCID: PMC10155792 DOI: 10.1111/srt.13271] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/19/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND The diagnosis of basal cell carcinoma (BCC) is based on clinical and dermoscopical features. In uncertain cases, innovative imaging techniques, such as reflectance confocal microscopy (RCM) and optical coherence tomography (OCT), have been used. The main limitation of these techniques is the inability to study deep margins. HFUS (high-frequency ultrasound) and the most recent UHFUS (ultra-high-frequency ultrasound) have been used in various applications in dermatology, but they are not yet routinely used in the diagnosis of BCC. A key point in clinical practice is to find an imaging technique that can help to reduce post-surgical recurrences with a careful presurgical assessment of the lesional margins. This technique should show high sensitivity, specificity, reproducibility and simplicity of execution. This concept is very important for the optimal management of patients who are often elderly and have many comorbidities. The aim of the paper is to analyse the characteristics of current imaging techniques and the studies in the literature on this topic. MATERIALS AND METHODS The authors independently searched the MEDLINE, PubMed, Embase, Scopus, ScienceDirect and Cochrane Library databases for studies looking for non-invasive imaging techniques for the presurgical margin assessment of BCC. RESULTS Preoperative study of the BCC subtype can help to obtain a complete excision with free margins. Different non-invasive imaging techniques have been studied for in vivo evaluation of tumour margins, comparing the histologic evaluation with a radical surgery. The possibility to study the lateral and deep margins would allow a reduction of recurrences and sparing of healthy tissue. CONCLUSION HFUS and UHFUS represent the most promising, non-invasive techniques for the pre-operative study of BCC facilitating the characterization of vascularization, deep lateral margins and high-risk subtypes, although they are limited by insufficient literature unlike RCM and OCT.
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Affiliation(s)
| | - Teresa Oranges
- Department of DermatologyAzienda Ospedaliero‐Universitaria Ospedale Pediatrico MeyerFlorenceItaly
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One-class machine learning classification of skin tissue based on manually scanned optical coherence tomography imaging. Sci Rep 2023; 13:867. [PMID: 36650283 PMCID: PMC9845382 DOI: 10.1038/s41598-023-28155-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
We investigated a method for automatic skin tissue characterization based on optical coherence tomography (OCT) imaging. We developed a manually scanned single fiber OCT instrument to perform in vivo skin imaging and tumor boundary assessment. The goal is to achieve more accurate tissue excision in Mohs micrographic surgery (MMS) and reduce the time required for MMS. The focus of this study was to develop a novel machine learning classification method to automatically identify abnormal skin tissues through one-class classification. We trained a deep convolutional neural network (CNN) with a U-Net architecture for automatic skin segmentation, used the pre-trained U-Net as a feature extractor, and trained one-class support vector machine (SVM) classifiers to detect abnormal tissues. The novelty of this study is the use of a neural network as a feature extractor and the use of a one-class SVM for abnormal tissue detection. Our approach eliminated the need to engineer the features for classification and eliminated the need to train the classifier with data obtained from abnormal tissues. To validate the effectiveness of the one-class classification method, we assessed the performance of our algorithm using computer synthesized data, and experimental data. We also performed a pilot study on a patient with skin cancer.
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Dobre EG, Surcel M, Constantin C, Ilie MA, Caruntu A, Caruntu C, Neagu M. Skin Cancer Pathobiology at a Glance: A Focus on Imaging Techniques and Their Potential for Improved Diagnosis and Surveillance in Clinical Cohorts. Int J Mol Sci 2023; 24:ijms24021079. [PMID: 36674595 PMCID: PMC9866322 DOI: 10.3390/ijms24021079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/08/2023] Open
Abstract
Early diagnosis is essential for completely eradicating skin cancer and maximizing patients' clinical benefits. Emerging optical imaging modalities such as reflectance confocal microscopy (RCM), optical coherence tomography (OCT), magnetic resonance imaging (MRI), near-infrared (NIR) bioimaging, positron emission tomography (PET), and their combinations provide non-invasive imaging data that may help in the early detection of cutaneous tumors and surgical planning. Hence, they seem appropriate for observing dynamic processes such as blood flow, immune cell activation, and tumor energy metabolism, which may be relevant for disease evolution. This review discusses the latest technological and methodological advances in imaging techniques that may be applied for skin cancer detection and monitoring. In the first instance, we will describe the principle and prospective clinical applications of the most commonly used imaging techniques, highlighting the challenges and opportunities of their implementation in the clinical setting. We will also highlight how imaging techniques may complement the molecular and histological approaches in sharpening the non-invasive skin characterization, laying the ground for more personalized approaches in skin cancer patients.
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Affiliation(s)
- Elena-Georgiana Dobre
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, 050095 Bucharest, Romania
| | - Mihaela Surcel
- Immunology Department, “Victor Babes” National Institute of Pathology, 050096 Bucharest, Romania
| | - Carolina Constantin
- Immunology Department, “Victor Babes” National Institute of Pathology, 050096 Bucharest, Romania
- Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania
| | | | - Ana Caruntu
- Department of Oral and Maxillofacial Surgery, “Carol Davila” Central Military Emergency Hospital, 010825 Bucharest, Romania
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Titu Maiorescu” University, 031593 Bucharest, Romania
| | - Constantin Caruntu
- Department of Physiology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Dermatology, “Prof. N.C. Paulescu” National Institute of Diabetes, Nutrition and Metabolic Diseases, 011233 Bucharest, Romania
- Correspondence:
| | - Monica Neagu
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91-95, 050095 Bucharest, Romania
- Immunology Department, “Victor Babes” National Institute of Pathology, 050096 Bucharest, Romania
- Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania
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9
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Parashar K, Torres AE, Boothby-Shoemaker W, Kohli I, Veenstra J, Neel V, Ozog DM. Imaging technologies for presurgical margin assessment of basal cell carcinoma. J Am Acad Dermatol 2023; 88:144-151. [PMID: 34793927 DOI: 10.1016/j.jaad.2021.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/20/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022]
Abstract
Basal cell carcinoma is the most common cancer worldwide, necessitating the development of techniques to decrease treatment costs through efficiency and efficacy. Mohs micrographic surgery, a specialized surgical technique involving staged resection of the tumor with complete histologic evaluation of the peripheral margins, is highly utilized. Reducing stages by even 5% to 10% would result in significant improvement in care and economic benefits. Noninvasive imaging could aid in both establishing the diagnosis of suspicious skin lesions and streamlining the surgical management of skin cancers by improving presurgical estimates of tumor sizes. Herein, we review the current state of imaging techniques in dermatology and their applications for diagnosis and tumor margin assessment of basal cell carcinoma prior to Mohs micrographic surgery.
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Affiliation(s)
| | | | - Wyatt Boothby-Shoemaker
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan; Department of Medicine, Michigan State University College of Human Medicine, East Lansing, Michigan
| | - Indermeet Kohli
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan; Department of Physics and Astronomy, Wayne State University, Detroit, Michigan
| | - Jesse Veenstra
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan
| | - Victor Neel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - David M Ozog
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan; Department of Medicine, Michigan State University College of Human Medicine, East Lansing, Michigan.
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Dynamic Optical Coherence Tomography: A Non-Invasive Imaging Tool for the Distinction of Nevi and Melanomas. Cancers (Basel) 2022; 15:cancers15010020. [PMID: 36612016 PMCID: PMC9817967 DOI: 10.3390/cancers15010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/08/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Along with the rising melanoma incidence in recent decades and bad prognoses resulting from late diagnoses, distinguishing between benign and malignant melanocytic lesions has become essential. Unclear cases may require the aid of non-invasive imaging to reduce unnecessary biopsies. This multicentric, case-control study evaluated the potential of dynamic optical coherence tomography (D-OCT) to identify distinguishing microvascular features in nevi. A total of 167 nevi, including dysplastic ones, on 130 participants of all ages and sexes were examined by D-OCT and dermoscopy with a histological reference. Three blinded analyzers evaluated the lesions. Then, we compared the features to those in 159 melanomas of a prior D-OCT study and determined if a differential diagnosis was possible. We identified specific microvascular features in nevi and a differential diagnosis of melanomas and nevi was achieved with excellent predictive values. We conclude that D-OCT overcomes OCT´s inability to distinguish melanocytic lesions based on its focus on microvascularization. To determine if an addition to the gold standard of a clinical-dermoscopic examination improves the diagnosis of unclear lesions, further studies, including a larger sample of dysplastic nevi and artificial intelligence, should be conducted.
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Automatic Segmentation of Laser-Induced Injury OCT Images Based on a Deep Neural Network Model. Int J Mol Sci 2022; 23:ijms231911079. [PMID: 36232378 PMCID: PMC9570418 DOI: 10.3390/ijms231911079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/13/2022] [Accepted: 09/18/2022] [Indexed: 11/16/2022] Open
Abstract
Optical coherence tomography (OCT) has considerable application potential in noninvasive diagnosis and disease monitoring. Skin diseases, such as basal cell carcinoma (BCC), are destructive; hence, quantitative segmentation of the skin is very important for early diagnosis and treatment. Deep neural networks have been widely used in the boundary recognition and segmentation of diseased areas in medical images. Research on OCT skin segmentation and laser-induced skin damage segmentation based on deep neural networks is still in its infancy. Here, a segmentation and quantitative analysis pipeline of laser skin injury and skin stratification based on a deep neural network model is proposed. Based on the stratification of mouse skins, a laser injury model of mouse skins induced by lasers was constructed, and the multilayer structure and injury areas were accurately segmented by using a deep neural network method. First, the intact area of mouse skin and the damaged areas of different laser radiation doses are collected by the OCT system, and then the labels are manually labeled by experienced histologists. A variety of deep neural network models are used to realize the segmentation of skin layers and damaged areas on the skin dataset. In particular, the U-Net model based on a dual attention mechanism is used to realize the segmentation of the laser-damage structure, and the results are compared and analyzed. The segmentation results showed that the Dice coefficient of the mouse dermis layer and injury area reached more than 0.90, and the Dice coefficient of the fat layer and muscle layer reached more than 0.80. In the evaluation results, the average surface distance (ASSD) and Hausdorff distance (HD) indicated that the segmentation results are excellent, with a high overlap rate with the manually labeled area and a short edge distance. The results of this study have important application value for the quantitative analysis of laser-induced skin injury and the exploration of laser biological effects and have potential application value for the early noninvasive detection of diseases and the monitoring of postoperative recovery in the future.
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12
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Segmentation and Recognition of the Pathological Features of Squamous Cell Carcinoma of the Skin Based on Multispectral Imaging. J Clin Med 2022; 11:jcm11133815. [PMID: 35807100 PMCID: PMC9267474 DOI: 10.3390/jcm11133815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 02/04/2023] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin cancers, a definitive diagnosis of cSCC is crucial to prevent patients from missing out on treatment. The gold standard for the diagnosis of cSCC is still pathological biopsy. Currently, its diagnostic efficiency and accuracy largely depend on the experience of pathologists. Here, we present a simple, fast, and robust technique, a microscopic multispectral imaging system based on LED illumination, to diagnose cSCC qualitatively and quantitatively. The adaptive threshold segmentation method was used to segment the multispectral images into characteristic structures. There was a statistically significant difference between the average nucleocytoplasmic ratio of normal skin (4.239%) and cSCC tissues (15.607%) (p < 0.01), and the keratin pearls cSCC have well-defined qualitative features. These results show that the qualitative and quantitative features obtained from multispectral imaging can be used to comprehensively determine whether or not the tissue is cancerous. This work has significant implications for the development of a low-cost and easy-to-use device, which can not only reduce the complexity of pathological diagnosis but can also achieve the goal of convenient digital staining and access to critical histological information.
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13
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Crisan D, Wortsman X, Alfageme F, Catalano O, Badea A, Scharffetter-Kochanek K, Sindrilaru A, Crisan M. Ultraschall in der Dermatochirurgie: Enthüllen des Verborgenen für optimierte chirurgische Planung. J Dtsch Dermatol Ges 2022; 20:913-927. [PMID: 35881098 DOI: 10.1111/ddg.14781_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 03/02/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Diana Crisan
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Deutschland
| | - Ximena Wortsman
- Klinik für Dermatologie, Institut für diagnostische Bildgebung und Erforschung der Haut und Weichteilgewebe, Medizinische Fakultät, Chile Universität, Santiago, Chile
| | - Fernando Alfageme
- Klinik für Dermatologie, Universitätsklinikum Puerta del Hierro, EFSUMB Dermatologisches Ultraschall-Lernzentrum, Majahonda, Madrid, Spanien
| | - Orlando Catalano
- Klinik für Radiologie, Diagnostisches Institut Varelli, Neapel, Italien
| | - Alexandru Badea
- Institut für Anatomie, Iuliu Hatieganu" Universität für Medizin und Pharmazie, Klausenburg, Rumänien
| | | | - Anca Sindrilaru
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Ulm, Deutschland
| | - Maria Crisan
- Klinik für Dermatologie, Abteilung Histologie, "Iuliu Hatieganu" Universität für Medizin und Pharmazie, Klausenburg, Rumänien
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14
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Crisan D, Wortsman X, Alfageme F, Catalano O, Badea A, Scharffetter-Kochanek K, Sindrilaru A, Crisan M. Ultrasonography in dermatologic surgery: revealing the unseen for improved surgical planning. J Dtsch Dermatol Ges 2022; 20:913-926. [PMID: 35616215 DOI: 10.1111/ddg.14781] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 03/02/2022] [Indexed: 11/28/2022]
Abstract
Ultrasonography (US) is a modern, in vivo imaging method, which is increasingly being used in dermatology as a complementary tool to clinical examination and dermoscopy. At higher frequencies (15 MHz and above), US is an established method for assessing benign and malignant skin lesions, locoregional staging, monitoring the therapeutic efficacy in various inflammatory skin conditions, and patient follow-up. One field, which may increasingly benefit from performant imaging techniques such as US is dermatologic surgery. Preoperative imaging of cutaneous tumors, inflammatory skin conditions (hidradenitis suppurativa, abscesses, etc.), or nail pathology provide dermatologic surgeons with relevant information for an optimal surgical planning, identifying potential complex aspects which might require interdisciplinary approaches, herein sparing unnecessary surgical interventions and increasing patients' compliance. In this review, we discuss the increasing significance of US in the field of dermatologic surgery, as well as the spectrum of cutaneous pathology where sonography can aid in the preoperative setting to provide a more precise, individualized surgical planning for better counseling to our patients and improved surgical results.
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Affiliation(s)
- Diana Crisan
- Department of Dermatology and Allergic Diseases, University Clinic Ulm, Germany
| | - Ximena Wortsman
- Department of Dermatology, Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Fernando Alfageme
- Department of Dermatology, University Hospital Puerta del Hierro, EFSUMB Dermatologic Ultrasound Learning Center, Majahonda, Madrid, Spain
| | - Orlando Catalano
- Department of Radiology, Istituto Diagnostico Varelli, Naples, Italy
| | - Alexandru Badea
- Department of Anatomy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - Anca Sindrilaru
- Department of Dermatology and Allergic Diseases, University Clinic Ulm, Germany
| | - Maria Crisan
- Departments of Dermatology and Histology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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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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16
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Von Knorring T, Israelsen NM, Ung V, Formann JL, Jensen M, Hædersdal M, Bang O, Fredman G, Mogensen M. Bedside Differentiation Between Benign and Malignant Pigmented Skin Tumours by Four Diagnostic Imaging Technologies - A Pilot Study. Acta Derm Venereol 2021; 102:adv00634. [PMID: 34806755 DOI: 10.2340/actadv.v101.571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fast diagnosis of suspicious pigmented skin lesions is imperative, but current bedside skin imaging technologies are either limited in penetration depth or resolution. Combining imaging methods is therefore highly relevant for skin cancer diagnostics. This pilot study evaluates the ability of optical coherence tomography, reflectance confocal microscopy, photoacoustic imaging and high-frequency ultrasound to differentiate malignant from benign pigmented skin lesions. A total of 41 pigmented skin tumours were scanned prior to excision. Morphologic features and blood vessel characteristics were analysed in reflectance confocal microscopy, optical coherence tomography, high-frequency ultrasound and photoacoustic imaging images and diagnostic accuracy assessed. Three novel photoacoustic imaging features, 7 reflectance confocal microscopy features and two optical coherence tomography features were detected with a high correlation to malignancy, diagnostic accuracy > 71%. No significant features were found in high-frequency ultrasound. Conclusively, optical coherence tomography, reflectance confocal microscopy and photoacoustic imaging in combination enables image-guided evaluation of suspicious pigmented skin tumours at the bedside. Combining these advanced techniques may help to diagnose skin cancer more efficiently.
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Affiliation(s)
- Terese Von Knorring
- Department of Dermatology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Nielsine Nielsens Vej 17, DK-2400 Copenhagen, Denmark.
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17
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Adan F, Kallen EJJ, Dermont G, Muche JM, Sinx KAE, Schilder A, Abdul Hamid M, Nelemans PJ, Mosterd K. Diagnostic accuracy of optical coherence tomography in the assessment of in vivo primary basal cell carcinoma resection margins prior to Mohs Micrographic Surgery. J Eur Acad Dermatol Venereol 2021; 36:e270-e272. [PMID: 34784080 DOI: 10.1111/jdv.17804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 10/22/2021] [Indexed: 11/30/2022]
Affiliation(s)
- F Adan
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - E J J Kallen
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - G Dermont
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - J M Muche
- Mohs klinieken Hoorn, Hoorn, The Netherlands
| | - K A E Sinx
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - A Schilder
- Mohs klinieken Hoorn, Hoorn, The Netherlands
| | - M Abdul Hamid
- Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - P J Nelemans
- Department of Epidemiology, Maastricht University, Maastricht, The Netherlands
| | - K Mosterd
- Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
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18
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Pathania YS, Apalla Z, Salerni G, Patil A, Grabbe S, Goldust M. Non-invasive diagnostic techniques in pigmentary skin disorders and skin cancer. J Cosmet Dermatol 2021; 21:444-450. [PMID: 34724325 DOI: 10.1111/jocd.14547] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/04/2021] [Accepted: 10/11/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Diagnosis of pigmentary skin disorders, pre-cancerous and cancerous skin diseases is traditionally relied on visual assessment. The most widely applied invasive diagnostic technique is the skin biopsy. There have been significant technological advances in non-invasive diagnostic methods for skin disorders. OBJECTIVE The objective of this article is to discuss different non-invasive diagnostic modalities, used in the diagnosis of pigmentary skin disorders and cutaneous cancers. METHODS Comprehensive literature search was performed to screen articles related to non-invasive diagnostic techniques in pigmentary skin disorders and cutaneous cancers. Articles published in journals indexed in PubMed were searched along with those in Google Scholar. Clinical trials, review articles, case series, case reports and other relevant articles were considered for review. References of relevant articles were also considered for review. RESULTS Dermoscopy and ultrasonography were the only non-invasive diagnostic and imaging techniques available to dermatologists for many years. The advent of computed tomography (CT) and magnetic resonance imaging (MRI) augmented the visualization of deeper structures. Confocal laser microscopy (CLM) and reflectance spectrophotometers have showed promising results in the non-invasive detection of pigmented lesions. Optical coherence tomography (OCT), electrical impedance spectroscopy (EIS), multispectral imaging, high frequency ultrasonography (HFUS) and adhesive patch biopsy aid in the accurate diagnosis of benign, as well as neoplastic skin diseases. CONCLUSION There have been significant advancements in non-invasive methods for diagnosis of dermatological diseases. These techniques can be repeatedly used in a comfort manner for the patient, and may offer an objective way to follow the course of a disease.
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Affiliation(s)
- Yashdeep Singh Pathania
- Department of Dermatology, Venereology and Leprology, All India Institute of Medical Sciences, Jodhpur, India
| | - Zoe Apalla
- Second Dermatology Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Gabriel Salerni
- Department of Dermatology, Hospital Provincial del Centenario de Rosario-Universidad Nacional de Rosario, Rosario, Argentina
| | - Anant Patil
- Department of Pharmacology, Dr. DY Patil Medical College, Navi Mumbai, India
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Mohamad Goldust
- Department of Dermatology, University Medical Center Mainz, Mainz, Germany
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19
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Jartarkar SR, Patil A, Wollina U, Gold MH, Stege H, Grabbe S, Goldust M. New diagnostic and imaging technologies in dermatology. J Cosmet Dermatol 2021; 20:3782-3787. [PMID: 34652880 DOI: 10.1111/jocd.14499] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/17/2021] [Indexed: 12/19/2022]
Abstract
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.
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Affiliation(s)
- Shishira R Jartarkar
- Department of Dermatology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, India
| | - Anant Patil
- Department of Pharmacology, Dr. DY Patil Medical College, Navi Mumbai, India
| | - Uwe Wollina
- Department of Dermatology and Allergology, Städtisches Klinikum Dresden, Academic Teaching Hospital of the Technical University of Dresden, Dresden, Germany
| | - Michael H Gold
- Gold Skin Care Center, Tennessee Clinical Research Center, Nashville, Tennessee, USA
| | - Henner Stege
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Mohamad Goldust
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
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20
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Vega D, Galvez D, Romano G, Pham NY, Cordova R, Aitken M, Suebka S, Heusinkveld J, Barton JK. Triple-modality co-registered endoscope featuring wide-field reflectance imaging, and high-resolution multiphoton and optical coherence microscopy. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2021; 1:044502. [PMID: 36325111 PMCID: PMC9625855 DOI: 10.1117/1.jom.1.4.044502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
We present the design and feasibility testing of a multimodal co-registered endoscope based on a dual-path optical system integrated with a scanning piezo. This endoscope incorporates three different imaging modalities. A large field of view reflectance imaging system enables visualization of objects several millimeters in front of the endoscope, while optical coherence microscopy and multiphoton microscopy are employed in contact with tissue to further analyze suspicious areas. The optical system allows multiple different imaging modalities by employing a dual optical path. One path features a low numerical aperture and wide field of view to allow reflectance imaging of distant objects. The other path features a high numerical aperture and short working distance to allow microscopy techniques such as optical coherence microscopy and multiphoton microscopy. Images of test targets were obtained with each imaging modality to verify and characterize the imaging capabilities of the endoscope. The reflectance modality was demonstrated with a 561 nm laser to allow high contrast with blood vessels. It achieved a lateral resolution of 24.8 μm at 5 mm and a working distance from 5 mm to 30 mm. Optical coherence microscopy (OCM) was performed with a 1300 nm super-luminescent diode since this wavelength experiences low relative scattering to allow for deeper tissue imaging. Measured OCM lateral and axial resolution was 4.0 μm and 14.2 μm, respectively. Multiphoton microscopy (MPM) was performed with a custom 1400 nm femtosecond fiber laser, a wavelength suitable for exciting multiple exogenous and some endogenous fluorophores, as well as providing information on tissue composition through harmonic generation processes. A 4.0 μm MPM lateral resolution was measured.
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Affiliation(s)
- David Vega
- The University of Arizona, The James C Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA, 85721
| | - Dominique Galvez
- The University of Arizona, The James C Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA, 85721
| | - Gabriella Romano
- University of Arizona, Biomedical Engineering, The University of Arizona, Tucson, AZ, USA, 85721
| | - Nancy Y. Pham
- University of Arizona, Biomedical Engineering, The University of Arizona, Tucson, AZ, USA, 85721
| | - Ricky Cordova
- University of Arizona, Biomedical Engineering, The University of Arizona, Tucson, AZ, USA, 85721
| | - Makenna Aitken
- University of Arizona, Biomedical Engineering, The University of Arizona, Tucson, AZ, USA, 85721
| | - Sartanee Suebka
- The University of Arizona, The James C Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA, 85721
| | - John Heusinkveld
- University of Arizona, Department of Obstetrics and Gynecology, College of Medicine, The University of Arizona, Tucson, AZ, USA, 85721
| | - Jennifer K. Barton
- The University of Arizona, The James C Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA, 85721
- University of Arizona, Biomedical Engineering, The University of Arizona, Tucson, AZ, USA, 85721
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21
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Jung JM, Cho JY, Lee WJ, Chang SE, Lee MW, Won CH. Emerging Minimally Invasive Technologies for the Detection of Skin Cancer. J Pers Med 2021; 11:951. [PMID: 34683091 PMCID: PMC8538732 DOI: 10.3390/jpm11100951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/23/2021] [Accepted: 09/23/2021] [Indexed: 12/23/2022] Open
Abstract
With the increasing incidence of skin cancer, many noninvasive technologies to detect its presence have been developed. This review focuses on reflectance confocal microscopy (RCM), optical coherence tomography (OCT), high-frequency ultrasound (HFUS), electrical impedance spectroscopy (EIS), pigmented lesion assay (PLA), and Raman spectroscopy (RS) and discusses the basic principle, clinical applications, advantages, and disadvantages of each technology. RCM provides high cellular resolution and has high sensitivity and specificity for the diagnosis of skin cancer. OCT provides lower resolution than RCM, although its evaluable depth is deeper than that of RCM. RCM and OCT may be useful in reducing the number of unnecessary biopsies, evaluating the tumor margin, and monitoring treatment response. HFUS can be mainly used to delineate tumor depths or margins and monitor the treatment response. EIS provides high sensitivity but low specificity for the diagnosis of skin malignancies. PLA, which is based on the genetic information of lesions, is applicable for the detection of melanoma with high sensitivity and moderate-to-high specificity. RS showed high accuracy for the diagnosis of skin cancer, although more clinical studies are required. Advances in these technologies for the diagnosis of skin cancer can lead to the realization of optimized and individualized treatments.
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Affiliation(s)
- Joon Min Jung
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.M.J.); (W.J.L.); (S.E.C.); (M.W.L.)
| | - Ji Young Cho
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea;
| | - Woo Jin Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.M.J.); (W.J.L.); (S.E.C.); (M.W.L.)
| | - Sung Eun Chang
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.M.J.); (W.J.L.); (S.E.C.); (M.W.L.)
| | - Mi Woo Lee
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.M.J.); (W.J.L.); (S.E.C.); (M.W.L.)
| | - Chong Hyun Won
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.M.J.); (W.J.L.); (S.E.C.); (M.W.L.)
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22
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Seidl-Philipp M, Frischhut N, Höllweger N, Schmuth M, Nguyen VA. Known and new facts on basal cell carcinoma. J Dtsch Dermatol Ges 2021; 19:1021-1041. [PMID: 34288482 PMCID: PMC8361778 DOI: 10.1111/ddg.14580] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/02/2021] [Indexed: 12/18/2022]
Abstract
Basal cell carcinoma (BCC) is the most common malignant tumor in light‐skinned people and amounts to about 75 % of all cases of skin cancer. Increasing incidence rates have been reported for decades all over the world. The main risk factors include UV radiation, male sex, light skin type, advanced age, long‐term immunosuppression, a positive individual or family history, and certain genodermatoses. BCC metastasizes only rarely, and its mortality is low, but it is associated with significant morbidity. Genetic mutations especially in the hedgehog pathway play an important role in BCC pathogenesis. Non‐invasive procedures such as optical coherence tomography or confocal laser scan microscopy are increasingly utilized for diagnostics in addition to visual inspection and dermatoscopy, but only in exceptional cases can histological confirmation of the diagnosis be dispensed with. Various clinical and histological subtypes have been defined. Differentiating between BCC with high and low risk of recurrence has a significant influence on the choice of treatment. Most BCC can be treated effectively and safely with standard surgery, or in selected cases with topical treatment. Locally advanced and metastasized BCC must be treated with radiation or systemic therapy. Radiation is also an option for older patients with contraindications for surgery. The hedgehog inhibitors vismodegib and sonidegib are currently approved for systemic therapy of BCC in Europe. Approval for the PD1 inhibitor cemiplimab as second‐line therapy is expected in the near future.
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Affiliation(s)
- Magdalena Seidl-Philipp
- University Hospital for Dermatology, Venereology, and Allergology, Medical University Innsbruck, Austria
| | - Nina Frischhut
- University Hospital for Dermatology, Venereology, and Allergology, Medical University Innsbruck, Austria
| | - Nicole Höllweger
- University Hospital for Dermatology, Venereology, and Allergology, Medical University Innsbruck, Austria
| | - Matthias Schmuth
- University Hospital for Dermatology, Venereology, and Allergology, Medical University Innsbruck, Austria
| | - Van Anh Nguyen
- University Hospital for Dermatology, Venereology, and Allergology, Medical University Innsbruck, Austria
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23
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Chuchvara N, Rao B, Liu X. Manually scanned single fiber optical coherence tomography for skin cancer characterization. Sci Rep 2021; 11:15570. [PMID: 34330974 PMCID: PMC8324861 DOI: 10.1038/s41598-021-95118-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 07/20/2021] [Indexed: 11/25/2022] Open
Abstract
Optical coherence tomography (OCT) is a cross-sectional imaging modality based on low coherence light interferometry. Within dermatology, it has found applications for in vivo diagnostic imaging purposes, as well as to guide Mohs micrographic surgery (MMS), due to its ability to visualize skin morphology up to several millimeters in depth. However, standard OCT probes have a large footprint and capture an extended area of the skin, making it difficult to precisely pinpoint clinically relevant location being imaged. Mohs surgeons stand to benefit from a handheld in vivo imaging device that can accurately trace surgical margins. In this study, we demonstrate the use of a single fiber OCT (sfOCT) instrument. Our imaging system features a miniature common path single fiber probe, and a novel speckle decorrelation technique that generates distortion free 2D images from manual scanning.By manually moving the single-fiber probe across the region of interest, the user can perform a lateral OCT scan while visualizing the location of the probe during data acquisition. Using the sfOCT, we have identified normal skin morphology, qualitatively correlated features of basal cell carcinoma and squamous cell carcinoma with histopathology, and quantified the disruption of the dermo-epidermal junction OCT pattern in skin tumors-each demonstrating the potential of utilizing sfOCT to differentiate tumor from normal skin. Using this imaging tool, a Mohs surgeon can enhance determination of surgical margins for the first stage of MMS, potentially decreasing the time and number of stages required for complete tumor removal.
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Affiliation(s)
- Nadiya Chuchvara
- Center for Dermatology, Rutgers Robert Wood Johnson Medical School, 1 Worlds Fair Drive, Somerset, NJ, 08873, USA
| | - Babar Rao
- Center for Dermatology, Rutgers Robert Wood Johnson Medical School, 1 Worlds Fair Drive, Somerset, NJ, 08873, USA
- Rao Dermatology, 95 First Avenue, Atlantic Highlands, NJ, 07716, USA
- Department of Dermatology, Weill Cornell Medicine, 1305 York Ave 9th Floor, New York, NY, 10021, USA
| | - Xuan Liu
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, University Heights, Newark, NJ, 07102, USA.
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Seidl-Philipp M, Frischhut N, Höllweger N, Schmuth M, Nguyen VA. Bekanntes und Neues zum Basalzellkarzinom. J Dtsch Dermatol Ges 2021; 19:1021-1043. [PMID: 34288462 DOI: 10.1111/ddg.14580_g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/02/2021] [Indexed: 11/27/2022]
Affiliation(s)
- Magdalena Seidl-Philipp
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Österreich
| | - Nina Frischhut
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Österreich
| | - Nicole Höllweger
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Österreich
| | - Matthias Schmuth
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Österreich
| | - Van Anh Nguyen
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Österreich
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25
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Liu X, Chuchvara N, Liu Y, Rao B. Real-time deep learning assisted skin layer delineation in dermal optical coherence tomography. OSA CONTINUUM 2021; 4:2008-2023. [PMID: 35822177 PMCID: PMC9273005 DOI: 10.1364/osac.426962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We present deep learning assisted optical coherence tomography (OCT) imaging for quantitative tissue characterization and differentiation in dermatology. We utilize a manually scanned single fiber OCT (sfOCT) instrument to acquire OCT images from the skin. The focus of this study is to train a U-Net for automatic skin layer delineation. We demonstrate that U-Net allows quantitative assessment of epidermal thickness automatically. U-Net segmentation achieves high accuracy for epidermal thickness estimation for normal skin and leads to a clear differentiation between normal skin and skin lesions. Our results suggest that a single fiber OCT instrument with AI assisted skin delineation capability has the potential to become a cost-effective tool in clinical dermatology, for diagnosis and tumor margin detection.
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Affiliation(s)
- Xuan Liu
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA
| | - Nadiya Chuchvara
- Center for Dermatology, Rutgers Robert Wood Johnson Medical School, 1 Worlds Fair Drive, Somerset, NJ 08873, USA
| | - Yuwei Liu
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA
| | - Babar Rao
- Center for Dermatology, Rutgers Robert Wood Johnson Medical School, 1 Worlds Fair Drive, Somerset, NJ 08873, USA
- Rao Dermatology, 95 First Avenue, Atlantic Highlands, NJ 07716, USA
- Department of Dermatology, Weill Cornell Medicine, 1305 York Ave 9th Floor, New York, NY 10021, USA
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26
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Lizio MG, Boitor R, Notingher I. Selective-sampling Raman imaging techniques for ex vivo assessment of surgical margins in cancer surgery. Analyst 2021; 146:3799-3809. [PMID: 34042924 DOI: 10.1039/d1an00296a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
One of the main challenges in cancer surgery is to ensure the complete excision of the tumour while sparing as much healthy tissue as possible. Histopathology, the gold-standard technique used to assess the surgical margins on the excised tissue, is often impractical for intra-operative use because of the time-consuming tissue cryo-sectioning and staining, and availability of histopathologists to assess stained tissue sections. Raman micro-spectroscopy is a powerful technique that can detect microscopic residual tumours on ex vivo tissue samples with accuracy, based entirely on intrinsic chemical differences. However, raster-scanning Raman micro-spectroscopy is a slow imaging technique that typically requires long data acquisition times wich are impractical for intra-operative use. Selective-sampling Raman imaging overcomes these limitations by using information regarding the spatial properties of the tissue to reduce the number of Raman spectra. This paper reviews the latest advances in selective-sampling Raman techniques and applications, mainly based on multimodal optical imaging. We also highlight the latest results of clinical integration of a prototype device for non-melanoma skin cancer. These promising results indicate the potential impact of Raman spectroscopy for providing fast and objective assessment of surgical margins, helping surgeons ensure the complete removal of tumour cells while sparing as much healthy tissue as possible.
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Affiliation(s)
- Maria Giovanna Lizio
- School of Physics and Astonomy, University of Nottingham, Nottingham, Nottinghamshire, UK.
| | - Radu Boitor
- School of Physics and Astonomy, University of Nottingham, Nottingham, Nottinghamshire, UK.
| | - Ioan Notingher
- School of Physics and Astonomy, University of Nottingham, Nottingham, Nottinghamshire, UK.
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27
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Gómez-Valverde JJ, Sinz C, Rank EA, Chen Z, Santos A, Drexler W, Ledesma-Carbayo MJ. Adaptive compounding speckle-noise-reduction filter for optical coherence tomography images. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-210051R. [PMID: 34142472 PMCID: PMC8211087 DOI: 10.1117/1.jbo.26.6.065001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
SIGNIFICANCE Speckle noise limits the diagnostic capabilities of optical coherence tomography (OCT) images, causing both a reduction in contrast and a less accurate assessment of the microstructural morphology of the tissue. AIM We present a speckle-noise reduction method for OCT volumes that exploits the advantages of adaptive-noise wavelet thresholding with a wavelet compounding method applied to several frames acquired from consecutive positions. The method takes advantage of the wavelet representation of the speckle statistics, calculated properly from a homogeneous sample or a region of the noisy volume. APPROACH The proposed method was first compared quantitatively with different state-of-the-art approaches by being applied to three different clinical dermatological OCT volumes with three different OCT settings. The method was also applied to a public retinal spectral-domain OCT dataset to demonstrate its applicability to different imaging modalities. RESULTS The results based on four different metrics demonstrate that the proposed method achieved the best performance among the tested techniques in suppressing noise and preserving structural information. CONCLUSIONS The proposed OCT denoising technique has the potential to adapt to different image OCT settings and noise environments and to improve image quality prior to clinical diagnosis based on visual assessment.
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Affiliation(s)
- Juan J. Gómez-Valverde
- Universidad Politécnica de Madrid, ETSI Telecomunicación, Biomedical Image Technologies Laboratory, Madrid, Spain
- Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - Christoph Sinz
- Medical University of Vienna, Department of Dermatology, Vienna, Austria
| | - Elisabet A. Rank
- Medical University of Vienna, Center for Medical Physics and Biomedical Engineering, Vienna, Austria
| | - Zhe Chen
- Medical University of Vienna, Center for Medical Physics and Biomedical Engineering, Vienna, Austria
| | - Andrés Santos
- Universidad Politécnica de Madrid, ETSI Telecomunicación, Biomedical Image Technologies Laboratory, Madrid, Spain
- Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - Wolfgang Drexler
- Medical University of Vienna, Center for Medical Physics and Biomedical Engineering, Vienna, Austria
| | - María J. Ledesma-Carbayo
- Universidad Politécnica de Madrid, ETSI Telecomunicación, Biomedical Image Technologies Laboratory, Madrid, Spain
- Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
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28
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Mohs micrographic surgery: a review of indications, technique, outcomes, and considerations. An Bras Dermatol 2021; 96:263-277. [PMID: 33849752 PMCID: PMC8178571 DOI: 10.1016/j.abd.2020.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/26/2020] [Accepted: 10/05/2020] [Indexed: 01/10/2023] Open
Abstract
Mohs micrographic surgery is a specialized form of skin cancer surgery that has the highest cure rates for several cutaneous malignancies. Certain skin cancers can have small extensions or “roots” that may be missed if an excised tumor is serially cross-sectioned in a “bread-loaf” fashion, commonly performed on excision specimens. The method of Mohs micrographic surgery is unique in that the dermatologist (Mohs surgeon) acts as both surgeon and pathologist, from the preoperative considerations until the reconstruction. Since Dr. Mohs’s initial work in the 1930s, the practice of Mohs micrographic surgery has become increasingly widespread among the dermatologic surgery community worldwide and is considered the treatment of choice for many common and uncommon cutaneous neoplasms. Mohs micrographic surgery spares the maximal amount of normal tissue and is a safe procedure with very few complications, most of them managed by Mohs surgeons in their offices. Mohs micrographic surgery is the standard of care for high risks basal cell carcinomas and cutaneous squamous cell carcinoma and is commonly and increasingly used for melanoma and other rare tumors with superior cure rates. This review better familiarizes the dermatologists with the technique, explains the difference between Mohs micrographic surgery and wide local excision, and discusses its main indications.
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29
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Ecclestone BR, Bell K, Abbasi S, Dinakaran D, Taher M, Mackey JR, Haji Reza P. Histopathology for Mohs micrographic surgery with photoacoustic remote sensing microscopy. BIOMEDICAL OPTICS EXPRESS 2021; 12:654-665. [PMID: 33659093 PMCID: PMC7899511 DOI: 10.1364/boe.405869] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/30/2020] [Accepted: 11/18/2020] [Indexed: 05/04/2023]
Abstract
Mohs micrographic surgery (MMS) is a precise oncological technique where layers of tissue are resected and examined with intraoperative histopathology to minimize the removal of normal tissue while completely excising the cancer. To achieve intraoperative pathology, the tissue is frozen, sectioned and stained over a 20- to 60-minute period, then analyzed by the MMS surgeon. Surgery is continued one layer at a time until no cancerous cells remain, meaning MMS can take several hours to complete. Ideally, it would be desirable to circumvent or augment frozen sectioning methods and directly visualize subcellular morphology on the unprocessed excised tissues. Employing photoacoustic remote sensing (PARS) microscopy, we present a non-contact label-free reflection-mode method of performing such visualizations in frozen sections of human skin. PARS leverages endogenous optical absorption contrast within cell nuclei to provide visualizations reminiscent of histochemical staining techniques. Presented here, is the first true one to one comparison between PARS microscopy and standard histopathological imaging in human tissues. We demonstrate the ability of PARS microscopy to provide large grossing scans (>1 cm2, sufficient to visualize entire MMS sections) and regional scans with subcellular lateral resolution (300 nm).
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Affiliation(s)
- Benjamin R. Ecclestone
- PhotoMedicine Labs, Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
| | - Kevan Bell
- PhotoMedicine Labs, Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
- illumiSonics, Inc., Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
| | - Saad Abbasi
- PhotoMedicine Labs, Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
| | - Deepak Dinakaran
- illumiSonics, Inc., Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
- Department of Oncology, University of Alberta, 8440 112 St. NW, T6G 2R7, Edmonton, Alberta, Canada
| | - Muba Taher
- Division of Dermatology, Department of Medicine, University of Alberta, 116 St & 85 Ave, Edmonton, Alberta, T6G 2V1, Canada
| | - John R. Mackey
- illumiSonics, Inc., Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
- Department of Oncology, University of Alberta, 8440 112 St. NW, T6G 2R7, Edmonton, Alberta, Canada
| | - Parsin Haji Reza
- PhotoMedicine Labs, Department of Systems Design Engineering, University of Waterloo, 200 University Ave W, Waterloo, Ontario, N2L 3G1, Canada
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30
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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: 35] [Impact Index Per Article: 8.8] [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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31
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Abstract
As a result of increasing melanoma incidence and challenges with clinical and histopathologic evaluation of pigmented lesions, noninvasive techniques to assist in the assessment of skin lesions are highly sought after. This review discusses the methods, benefits, and limitations of adhesive patch biopsy, electrical impedance spectroscopy (EIS), multispectral imaging, high-frequency ultrasonography (HFUS), optical coherence tomography (OCT), and reflectance confocal microscopy (RCM) in the detection of skin cancer. Adhesive patch biopsy provides improved sensitivity and specificity for the detection of melanoma without a trade-off of higher sensitivity for lower specificity seen in other diagnostic tools to aid in skin cancer detection, including EIS and multispectral imaging. EIS and multispectral imaging provide objective information based on computer-assisted diagnosis to assist in the decision to biopsy and/or excise an atypical melanocytic lesion. HFUS may be useful for the determination of skin tumor depth and identification of surgical borders, although further studies are necessary to determine its accuracy in the detection of skin cancer. OCT and RCM provide enhanced resolution of skin tissue and have been applied for improved accuracy in skin cancer diagnosis, as well as monitoring the response of nonsurgical treatments of skin cancers and the determination of tumor margins and recurrences. These novel approaches to skin cancer assessment offer opportunities to dermatologists, but are dependent on the individual dermatologist's comfort, knowledge, and desire to invest in training and implementation of noninvasive techniques. These noninvasive modalities may have a role in the complementary assessment of skin cancers, although histopathologic diagnosis remains the gold standard for the evaluation of skin cancer.
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32
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Yaroslavsky AN, Feng X, Yu SH, Jermain PR, Iorizzo TW, Neel VA. Dual-Wavelength Optical Polarization Imaging for Detecting Skin Cancer Margins. J Invest Dermatol 2020; 140:1994-2000.e1. [PMID: 32272138 DOI: 10.1016/j.jid.2020.03.947] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 03/01/2020] [Accepted: 03/18/2020] [Indexed: 12/12/2022]
Abstract
Treatment of keratinocyte carcinomas requires an assessment of the extent of tumor spread. Visual delineation of tumor margins is error-prone owing to the limited contrast between cancerous and normal skin. In this contribution, we introduce spectrally-encoded optical polarization imaging and evaluate its performance for preoperative demarcation of keratinocyte carcinomas. Subjects with basal or squamous cell carcinoma, scheduled for Mohs surgery, were enrolled. The surgeon outlined the clinical boundary of each lesion preoperatively. Optical images of the lesions were then acquired at 440 and 640 nm. Spectral encoding of the experimental images minimized the impact of background pigmentation and vascularization. The surgeon was blinded to the imaging results. Margin assessments by imaging and by the surgeon were recorded and compared with the intraoperative histopathology. In total, 53 lesions were imaged in vivo. Thirteen cases required more than one Mohs stage. In all these cases, images accurately visualized the tumor. For cases negative following the first Mohs stage, margin assessments correlated with histopathology in 39 out of 40 cases. Imaging demonstrated 100% sensitivity and 98% specificity. Spectrally-encoded optical polarization imaging may prove valuable for real-time noninvasive preoperative delineation of skin cancer.
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Affiliation(s)
- Anna N Yaroslavsky
- Advanced Biophotonics Laboratory, University of Massachusetts - Lowell, Lowell, Massachusetts, USA; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA.
| | - Xin Feng
- Advanced Biophotonics Laboratory, University of Massachusetts - Lowell, Lowell, Massachusetts, USA
| | - Sherry H Yu
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Peter R Jermain
- Advanced Biophotonics Laboratory, University of Massachusetts - Lowell, Lowell, Massachusetts, USA
| | - Tyler W Iorizzo
- Advanced Biophotonics Laboratory, University of Massachusetts - Lowell, Lowell, Massachusetts, USA
| | - Victor A Neel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
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33
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Jerjes W, Hamdoon Z, Al-Rawi N, Hopper C. Optical coherence tomography in the assessment of cutaneous cancer margins of the face: An immediate ex vivo study. Photodiagnosis Photodyn Ther 2019; 29:101616. [PMID: 31811948 DOI: 10.1016/j.pdpdt.2019.101616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/24/2019] [Accepted: 12/02/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND The assessment of cutaneous cancer margins intra-operatively or in the immediate postoperative phase can guide the operator into achieving clear margins. Achieving clear (tumour-free) margins following surgery is an essential factor that can reduce morbidity and disfigurement. The aim of present study was to determine the accuracy of optical coherence tomography in assessing cutaneous cancer margins of the face. MATERIALS AND METHODS The excised tissue specimens that were examined, in this study, were acquired from 70 patients with 70 facial cancer lesions, with no nodal disease. Forty lesions were basal cell carcinomas (150 margins; 27 tumour positive) and the remaining thirty were cutaneous squamous cell carcinomas (112 margins; 22 tumour positive). These 70 resected lesions were subjected to optical coherence tomography (OCT) in the immediate ex vivo phase to assess each specimen's four margins status (anterior, posterior, medial and lateral). Two reviewers, blinded to the diagnosis, carried out the assessment of the acquired OCT images and measured the mean thickness. Intra- and inter-reviewer agreement was also calculated. RESULTS On OCT, tumour-involved margins displayed sudden change in thickness associated with architectural changes. BCC-involved margins showed homogenous oval nests with dark rim and dark cysts or an empty space below dermo-epidermal junction depending on the sub-type. In the case of cutaneous SCC-involved margins, the DEJ had lost its integrity with/out the presence of small bright clusters in the papillary dermis and damage to the superficial epidermal layers. The mean thickness of the whole epidermal layer of the tumour-free margin was 128 μm, while for the BCC-involved margin 640 μm, and for the cutaneous SCC-involved margin 810 μm. The sensitivity of using OCT in examining BCC-involved margins was 88.9-92.6 % and the specificity was 96.8-98.4 %. For cutaneous SCC-involved margins, the sensitivity was 81.8-91.0 % and the specificity 85.6-91.1 %. There was "strong" inter-reviewer agreement on the BCC-involved margins, while the agreement was "moderate" for the cutaneous SCC-involved margins. CONCLUSION OCT provides good accuracy in identifying cutaneous cancer margins. This can potentially be used to guide and monitor resection in real-time. Tumour thickness could be measured due to the thin skin of the face, but may be more difficult to measure accurately in thick tumours and/or thick skin areas.
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Affiliation(s)
- Waseem Jerjes
- UCL Medical School, London, UK; North End Medical Centre, London, UK.
| | - Zaid Hamdoon
- Unit of OMFS, UCL Eastman Dental Institute, London, UK; College of Dental Medicine, University of Sharjah, United Arab Emirates.
| | - Natheer Al-Rawi
- College of Dental Medicine, University of Sharjah, United Arab Emirates
| | - Colin Hopper
- UCL Medical School, London, UK; Unit of OMFS, UCL Eastman Dental Institute, London, UK
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34
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Peters N, Schubert M, Bauer J, Ghoreschi FC, Moehrle M. Rapid Lump Examination (RLE) – eine schnelle Methode in der mikroskopisch kontrollierten Chirurgie von Basalzellkarzinomen. J Dtsch Dermatol Ges 2019; 17:1131-1140. [PMID: 31765084 DOI: 10.1111/ddg.13937_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/20/2019] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Juergen Bauer
- Universitäts-Hautklinik Tübingen.,Dermatologie in Stuttgart
| | | | - Matthias Moehrle
- Universitäts-Hautklinik Tübingen.,Praxisklinik Tübingen - Haut und Venen, Tübingen
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35
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Grand D, Navrazhina K, Frew JW. A Scoping Review of Non-invasive Imaging Modalities in Dermatological Disease: Potential Novel Biomarkers in Hidradenitis Suppurativa. Front Med (Lausanne) 2019; 6:253. [PMID: 31781567 PMCID: PMC6851050 DOI: 10.3389/fmed.2019.00253] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/21/2019] [Indexed: 01/01/2023] Open
Abstract
Background: The development of imaging-based biomarkers has the potential to overcome major challenges in the accurate and reproducible assessment of disease severity and response to novel therapies in Hidradenitis Suppurativa (HS). Understanding the advantages and limitations of existing non-invasive imaging modalities in dermatological disease will aid in the development of hypotheses and inform the design of future studies. Methods: A scoping review was performed using Medline, Embase, Web of Science Databases and evaluation of "gray literature" until June 30, 2019. Citations were examined according to pre-defined inclusion and exclusion criteria. Citations were reviewed by two independent reviewers. Narrative Synthesis was used to summarize data, structured by imaging modality. Results: Non-invasive imaging modalities, such as ultrasound, MRI, RCM, EIS, OCT, and MIT, were identified. Only ultrasound, MRI and MIT have been used in HS. Image modalities vary in image depth, resolution, cost, accessibility and correlation with known aspects of disease activity in HS. Discussion and Conclusion: The benefits and limitations of each imaging modality are products of cost, accessibility, validity and reliability. An additional hurdle to the development of image-based biomarkers in HS is a lack of established analytical benchmarks that can be correlated with existing biological, inflammatory and clinical parameters. This review has identified potential imaging biomarkers, as well as relevant analytical benchmarks that reflect the presence or absence of disease. Further investigation work is needed to analytically and clinically validate these imaging variables in order to identify potential imaging biomarkers in HS.
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Affiliation(s)
- David Grand
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, United States.,Albert Einstein College of Medicine, Bronx, NY, United States
| | - Kristina Navrazhina
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, United States.,Weill Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-PhD Program, Weill Cornell University, New York, NY, United States
| | - John W Frew
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, United States
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36
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Park J, Lee K, Kim H, Park S, Wijesinghe RE, Lee J, Han S, Lee S, Kim P, Cho D, Jang J, Kim HK, Jeon M, Kim J. Biocompatibility evaluation of bioprinted decellularized collagen sheet implanted in vivo cornea using swept-source optical coherence tomography. JOURNAL OF BIOPHOTONICS 2019; 12:e201900098. [PMID: 31240872 PMCID: PMC7065634 DOI: 10.1002/jbio.201900098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/26/2019] [Accepted: 06/25/2019] [Indexed: 05/04/2023]
Abstract
Corneal transplantation by full-thickness penetrating keratoplasty with human donor tissue is a widely accepted treatment for damaged or diseased corneas. Although corneal transplantation has a high success rate, a shortage of high-quality donor tissue is a considerable limitation. Therefore, bioengineered corneas could be an effective solution for this limitation, and a decellularized extracellular matrix comprises a promising scaffold for their fabrication. In this study, three-dimensional bioprinted decellularized collagen sheets were implanted into the stromal layer of the cornea of five rabbits. We performed in vivo noninvasive monitoring of the rabbit corneas using swept-source optical coherence tomography (OCT) after implanting the collagen sheets. Anterior segment OCT images and averaged amplitude-scans were acquired biweekly to monitor corneal thickness after implantation for 1 month. The averaged cornea thickness in the control images was 430.3 ± 5.9 μm, while the averaged thickness after corneal implantation was 598.5 ± 11.8 μm and 564.5 ± 12.5 μm at 2 and 4 weeks, respectively. The corneal thickness reduction of 34 μm confirmed the biocompatibility through the image analysis of the depth-intensity profile base. Moreover, hematoxylin and eosin staining supported the biocompatibility evaluation of the bioprinted decellularized collagen sheet implantation. Hence, the developed bioprinted decellularized collagen sheets could become an alternative solution to human corneal donor tissue, and the proposed image analysis procedure could be beneficial to confirm the success of the surgery.
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Affiliation(s)
- Jaeseok Park
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
| | - Kyoung‐Pil Lee
- Department of Ophthalmology, School of MedicineKyungpook National UniversityDaeguSouth Korea
- Bio‐Medical InstituteKyungpook National University HospitalDaeguSouth Korea
| | - Hyeonji Kim
- Department of Mechanical EngineeringPohang University of Science and TechnologyPohangSouth Korea
| | - Sungjo Park
- Laser Application Center, Institute of Advanced Convergence TechnologyKyungpook National UniversityDaeguSouth Korea
| | - Ruchire E. Wijesinghe
- Department of Biomedical Engineering, College of EngineeringKyungil UniversityGyeongsanSouth Korea
| | - Jaeyul Lee
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
| | - Sangyeob Han
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
| | - Sangbong Lee
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
| | - Pilun Kim
- Institute of Biomedical Engineering, School of MedicineKyungpook National UniversityDaeguSouth Korea
| | - Dong‐Woo Cho
- Department of Mechanical EngineeringPohang University of Science and TechnologyPohangSouth Korea
| | - Jinah Jang
- Department of Creative IT EngineeringPohang University of Science and TechnologyPohangSouth Korea
- School of Interdisciplinary Bioscience and BioengineeringPohang University of Science and TechnologyPohangSouth Korea
| | - Hong K. Kim
- Department of Ophthalmology, School of MedicineKyungpook National UniversityDaeguSouth Korea
- Bio‐Medical InstituteKyungpook National University HospitalDaeguSouth Korea
| | - Mansik Jeon
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
| | - Jeehyun Kim
- School of Electronic Engineering, College of IT EngineeringKyungpook National UniversityDaeguSouth Korea
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37
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Caffery LJ, Clunie D, Curiel-Lewandrowski C, Malvehy J, Soyer HP, Halpern AC. Transforming Dermatologic Imaging for the Digital Era: Metadata and Standards. J Digit Imaging 2019; 31:568-577. [PMID: 29344752 DOI: 10.1007/s10278-017-0045-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Imaging is increasingly being used in dermatology for documentation, diagnosis, and management of cutaneous disease. The lack of standards for dermatologic imaging is an impediment to clinical uptake. Standardization can occur in image acquisition, terminology, interoperability, and metadata. This paper presents the International Skin Imaging Collaboration position on standardization of metadata for dermatologic imaging. Metadata is essential to ensure that dermatologic images are properly managed and interpreted. There are two standards-based approaches to recording and storing metadata in dermatologic imaging. The first uses standard consumer image file formats, and the second is the file format and metadata model developed for the Digital Imaging and Communication in Medicine (DICOM) standard. DICOM would appear to provide an advantage over using consumer image file formats for metadata as it includes all the patient, study, and technical metadata necessary to use images clinically. Whereas, consumer image file formats only include technical metadata and need to be used in conjunction with another actor-for example, an electronic medical record-to supply the patient and study metadata. The use of DICOM may have some ancillary benefits in dermatologic imaging including leveraging DICOM network and workflow services, interoperability of images and metadata, leveraging existing enterprise imaging infrastructure, greater patient safety, and better compliance to legislative requirements for image retention.
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Affiliation(s)
- Liam J Caffery
- Centre for Online Health, Centre for Health Services Research, The University of Queensland, Ground Floor, Building 33, Princess Alexandra Hospital, Woolloongabba, Brisbane, QLD, 4102, Australia.
| | | | - Clara Curiel-Lewandrowski
- University of Arizona Cancer Center/Skin Cancer Institute and Division of Dermatology, University of Arizona, Tucson, AZ, USA
| | - Josep Malvehy
- Dermatology Department, Hospital Clinic, IDIBAPS, CIBER de enfermedades raras, University of Barcelona, Barcelona, Spain
| | - H Peter Soyer
- Dermatology Research Centre, The University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
- Dermatology Department, Princess Alexandra Hospital, Brisbane, Australia
| | - Allan C Halpern
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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38
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Sahu A, Yélamos O, Iftimia N, Cordova M, Alessi-Fox C, Gill M, Maguluri G, Dusza SW, Navarrete-Dechent C, González S, Rossi AM, Marghoob AA, Rajadhyaksha M, Chen CSJ. Evaluation of a Combined Reflectance Confocal Microscopy-Optical Coherence Tomography Device for Detection and Depth Assessment of Basal Cell Carcinoma. JAMA Dermatol 2019; 154:1175-1183. [PMID: 30140851 DOI: 10.1001/jamadermatol.2018.2446] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Importance The limited tissue sampling of a biopsy can lead to an incomplete assessment of basal cell carcinoma (BCC) subtypes and depth. Reflectance confocal microscopy (RCM) combined with optical coherence tomography (OCT) imaging may enable real-time, noninvasive, comprehensive three-dimensional sampling in vivo, which may improve the diagnostic accuracy and margin assessment of BCCs. Objective To determine the accuracy of a combined RCM-OCT device for BCC detection and deep margin assessment. Design, Setting, and Participants This pilot study was carried out on 85 lesions from 55 patients referred for physician consultation or Mohs surgery at Memorial Sloan Kettering Skin Cancer Center in Hauppauge, New York. These patients were prospectively and consecutively enrolled in the study between January 1, 2017, and December 31, 2017. Patients underwent imaging, with the combined RCM-OCT probe, for previously biopsied, histopathologically confirmed BCCs and lesions clinically or dermoscopically suggestive of BCC. Only patients with available histopathologic examination after imaging were included. Main Outcomes and Measures Improvements in sensitivity, specificity, and diagnostic accuracy for BCC using the combined RCM-OCT probe as well as the correlation between OCT-estimated depth and histopathologically measured depth were investigated. Results In total, 85 lesions from 55 patients (27 [49%] were female and 28 [51%] were male with a median [range] age of 59 [21-90] years) were imaged. Imaging was performed on 25 previously biopsied and histopathologically confirmed BCCs and 60 previously nonbiopsied but clinically or dermoscopically suspicious lesions. Normal skin and BCC features were correlated and validated with histopathologic examination. In previously biopsied lesions, residual tumors were detected in 12 of 25 (48%) lesions with 100% sensitivity (95% CI, 73.5%-100%) and 23.1% specificity (95% CI, 5.0%-53.8%) for combined RCM-OCT probe. In previously nonbiopsied and suspicious lesions, BCCs were diagnosed in 48 of 60 (80%) lesions with 100% sensitivity (95% CI, 92.6%-100%) and 75% specificity (95% CI, 42.8%-94.5%). Correlation was observed between depth estimated with OCT and depth measured with histopathologic examination: the coefficient of determination (R2) was 0.75 (R = 0.86; P < .001) for all lesions, 0.73 (R = 0.85; P < .001) for lesions less than 500 μm deep, and 0.65 (R = 0.43; P < .001) for lesions greater than 500 μm deep. Conclusions and Relevance Combined RCM-OCT imaging may be prospectively used to comprehensively diagnose lesions suggestive of BCC and triage for treatment. Further validation of this device must be performed on a larger cohort.
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Affiliation(s)
- Aditi Sahu
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Oriol Yélamos
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Dermatology, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Nicusor Iftimia
- Biomedical Optics Technologies Group, Physical Sciences Inc, Andover, Massachusetts
| | - Miguel Cordova
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Christi Alessi-Fox
- Clinical Development, Caliber Imaging and Diagnostics Inc, Rochester, New York
| | - Melissa Gill
- SkinMedical Research and Diagnostics, PLLC, Dobbs Ferry, New York.,Department of Pathology, SUNY Downstate Medical Center, Brooklyn, New York
| | - Gopi Maguluri
- Biomedical Optics Technologies Group, Physical Sciences Inc, Andover, Massachusetts
| | - Stephen W Dusza
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Cristián Navarrete-Dechent
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Department of Dermatology, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Salvador González
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Medicine and Medical Specialties Department, Instituto Ramon y Cajal de Investigacion Sanitaria, Alcalá University, Madrid, Spain.,Department of Dermatology, Alcalá University, Madrid, Spain
| | - Anthony M Rossi
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ashfaq A Marghoob
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Milind Rajadhyaksha
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chih-Shan J Chen
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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39
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Lang BM, Balermpas P, Bauer A, Blum A, Brölsch GF, Dirschka T, Follmann M, Frank J, Frerich B, Fritz K, Hauschild A, Heindl LM, Howaldt HP, Ihrler S, Kakkassery V, Klumpp B, Krause-Bergmann A, Löser C, Meissner M, Sachse MM, Schlaak M, Schön MP, Tischendorf L, Tronnier M, Vordermark D, Welzel J, Weichenthal M, Wiegand S, Kaufmann R, Grabbe S. S2k-Leitlinie Basalzellkarzinom der Haut - Teil 1: Epidemiologie, Genetik und Diagnostik. J Dtsch Dermatol Ges 2019; 17:94-104. [PMID: 30615280 DOI: 10.1111/ddg.13733_g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | - Andrea Bauer
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Carl Gustav Carus Dresden
| | | | - G Felix Brölsch
- Klinik für Plastische, Ästhetische, Hand- und Wiederherstellungschirurgie, Medizinische Hochschule Hannover
| | - Thomas Dirschka
- CentroDerm, Wuppertal.,Fakultät für Gesundheit, Universität Witten-Herdecke
| | | | - Jorge Frank
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsmedizin Göttingen
| | - Bernhard Frerich
- Klinik und Poliklinik für Mund-, Kiefer- und plastische Gesichtschirurgie, Universitätsmedizin Rostock
| | | | - Axel Hauschild
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | | | - Hans-Peter Howaldt
- Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Gießen
| | | | - Vinodh Kakkassery
- Klinik für Augenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck.,Klinik und Poliklinik für Augenheilkunde, Universitätsmedizin Rostock
| | - Bernhard Klumpp
- Abteilung für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Tübingen.,Radiologie, Rems-Murr-Klinikum Winnenden
| | | | | | - Markus Meissner
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt
| | - Michael M Sachse
- Klinik für Dermatologie, Allergologie und Phlebologie, Klinikum Bremerhaven
| | - Max Schlaak
- Klinik und Poliklinik für Dermatologie und Allergologie, Klinikum der Universität München
| | - Michael P Schön
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsmedizin Göttingen
| | | | - Michael Tronnier
- Klinik für Dermatologie, Venerologie und Allergologie, Helios Klinikum Hildesheim
| | - Dirk Vordermark
- Universitätsklinik und Poliklinik für Strahlentherapie, Martin-Luther-Universität Halle-Wittenberg
| | - Julia Welzel
- Klinik für Dermatologie und Allergologie, Klinikum Augsburg
| | - Michael Weichenthal
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - Susanne Wiegand
- Klinik und Poliklinik für Hals-, Nasen-, Ohrenheilkunde, Universitätsklinikum Leipzig
| | - Roland Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt
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40
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Peters N, Schubert M, Bauer J, Ghoreschi FC, Moehrle M. Rapid Lump Examination (RLE) – a bedside 3‐dimensional microscopy of tumor specimens. J Dtsch Dermatol Ges 2019; 17:1131-1139. [DOI: 10.1111/ddg.13937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/20/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Nina Peters
- Department of DermatologyUniversity Medical Center Tuebingen Tuebingen Germany
| | | | - Juergen Bauer
- Department of DermatologyUniversity Medical Center Tuebingen Tuebingen Germany
- Dermatologie in Stuttgart Stuttgart Germany
| | | | - Matthias Moehrle
- Department of DermatologyUniversity Medical Center Tuebingen Tuebingen Germany
- Praxisklinik Tübingen – Haut und Venen Tuebingen Germany
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41
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Veness MJ, Delishaj D, Barnes EA, Bezugly A, Rembielak A. Current Role of Radiotherapy in Non-melanoma Skin Cancer. Clin Oncol (R Coll Radiol) 2019; 31:749-758. [PMID: 31447088 DOI: 10.1016/j.clon.2019.08.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 07/07/2019] [Accepted: 08/07/2019] [Indexed: 12/11/2022]
Abstract
Non-melanoma skin cancer (NMSC) represents the most frequently diagnosed malignancy worldwide, most being cutaneous basal cell and squamous cell carcinoma. The global incidence of NMSC continues to increase as the global population ages. Numerous treatment options are available for NMSC patients, with radiotherapy an efficacious and tissue-preserving non-surgical option. External beam radiotherapy and brachytherapy are modalities with specific indications and advantages in treating NMSC. Where excision is not an option (medically/technically inoperable) or considered less ideal (e.g. cosmetic or functional outcome), radiotherapy offers an excellent alternative. Inoperable elderly and/or co-morbid patients of poor performance status can benefit from short-course hypofractionated radiotherapy, with very acceptable toxicity. Adjuvant radiotherapy in patients with unfavourable pathology can decrease the risk of local and regional recurrence and associated morbidity and mortality. Radiotherapy has advantages and disadvantages and it is important for clinicians to understand these. Managing patients with NMSC is carried out by clinicians from multiple disciplines but it is imperative that they are all aware of the role of radiotherapy in their patients in various clinical settings. Here we aim to discuss the role and indications for recommending radiotherapy in patients with NMSC.
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Affiliation(s)
- M J Veness
- Department of Radiation Oncology, Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, New South Wales, Australia; University of Sydney, Sydney, New South Wales, Australia.
| | - D Delishaj
- Department of Translational Medicine, Division of Radiation Oncology - University of Pisa, Pisa, Italy
| | - E A Barnes
- Department of Radiation Oncology, University of Toronto, Odette Cancer Centre, Toronto, Canada
| | - A Bezugly
- Academy of Postgraduate Education of the Russian Federal Medical-Biological Agency, Moscow, Russia
| | - A Rembielak
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester, UK; University of Manchester, Manchester, UK
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42
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Ring HC, Israelsen NM, Bang O, Haedersdal M, Mogensen M. Potential of contrast agents to enhance in vivo confocal microscopy and optical coherence tomography in dermatology: A review. JOURNAL OF BIOPHOTONICS 2019; 12:e201800462. [PMID: 30851078 DOI: 10.1002/jbio.201800462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/02/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Distinction between normal skin and pathology can be a diagnostic challenge. This systematic review summarizes how various contrast agents, either topically delivered or injected into the skin, affect distinction between skin disease and normal skin when imaged by optical coherence tomography (OCT) and confocal microscopy (CM). A systematic review of in vivo OCT and CM studies using exogenous contrast agents on healthy human skin or skin disease was performed. In total, nine CM studies and one OCT study were eligible. Four contrast agents aluminum chloride (AlCl) n = 2, indocyanine green (ICG) n = 3, sodium fluorescein n = 3 and acetic acid n = 1 applied to CM in variety of skin diseases. ICG, acetic acid and AlCl showed promise to increase contrast of tumor nests in keratinocyte carcinomas. Fluorescein and ICG enhanced contrast of keratinocytes and adnexal structures. In OCT of healthy skin gold nanoshells, increased contrast of natural skin openings. Contrast agents may improve delineation and diagnosis of skin cancers; ICG, acetic acid and AlCl have potential in CM and gold nanoshells facilitate visualization of adnexal skin structures in OCT. However, as utility of bedside optical imaging increases, further studies with robust methodological quality are necessary to implement contrast agents into routine dermatological practice.
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Affiliation(s)
- Hans C Ring
- Department of Dermatology, Bispebjerg Hospital, Nielsine Nielsens Vej 9, 2400 København NV, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niels M Israelsen
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Ole Bang
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Bispebjerg Hospital, Nielsine Nielsens Vej 9, 2400 København NV, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mette Mogensen
- Department of Dermatology, Bispebjerg Hospital, Nielsine Nielsens Vej 9, 2400 København NV, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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43
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Flores E, Yélamos O, Cordova M, Kose K, Phillips W, Lee EH, Rossi A, Nehal K, Rajadhyaksha M. Peri-operative delineation of non-melanoma skin cancer margins in vivo with handheld reflectance confocal microscopy and video-mosaicking. J Eur Acad Dermatol Venereol 2019; 33:1084-1091. [PMID: 30811707 DOI: 10.1111/jdv.15491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 01/18/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND The surgical removal of non-melanoma skin cancers (NMSCs) is guided by the pathologic examination of margins. However, the preparation of histopathology is time consuming, labour-intensive and requires separate laboratory infrastructure. Furthermore, when histopathology indicates positive margins, patients must return for re-excisions. Reflectance confocal microscopy (RCM) with a new video-mosaicking approach can noninvasively delineate margins directly on patients and potentially guide surgery in real-time, augmenting the traditional approaches of histopathology. OBJECTIVE To assess a new peri-operative RCM video-mosaicking approach for comprehensive delineation of NMSC margins on patients in vivo. METHODS Thirty-five patients undergoing Mohs micrographic surgery (MMS) in the Mohs surgery unit at Memorial Sloan Kettering Cancer Center, New York, NY were included in the study. RCM imaging was performed before and after the first staged excision by acquiring videos along the surgical margins (epidermal, peripheral and deep dermal) of each wound, which were subsequently processed into video-mosaics. Two RCM evaluators read and assessed video-mosaics, and subsequently compared to the corresponding Mohs frozen histopathology. RESULTS Reflectance confocal microscopy videos and video-mosaics displayed acceptable imaging quality (resolution and contrast), pre-operatively in 32/35 (91%) NMSC lesions and intra-operatively in 29/35 lesions (83%). Pre-operative delineation of margins correlated with the histopathology in 32/35 (91%) lesions. Intra-operative delineation correlated in 10/14 (71%) lesions for the presence of residual tumour and in 18/21 (86%) lesions for absence. Sensitivity/specificity were 71%/86% and 86%/81% for two RCM video-mosaic evaluators, and overall agreement was 80% and 83% with histopathology, with moderate inter-evaluator agreement (k = 0.59, P ≤ 0.0002). CONCLUSIONS Peri-operative RCM video-mosaicking of NMSC margins directly on patients may potentially guide surgery in real-time, serve as an adjunct to histopathology, reduce time spent in clinic and reduce the need for re-excisions. Further testing in larger studies is needed.
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Affiliation(s)
- E Flores
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Public Health Science Department, Penn State College of Medicine, Hershey, PA, USA
| | - O Yélamos
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Dermatology Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - M Cordova
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K Kose
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - W Phillips
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - E H Lee
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A Rossi
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K Nehal
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M Rajadhyaksha
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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44
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Sunny SP, Agarwal S, James BL, Heidari E, Muralidharan A, Yadav V, Pillai V, Shetty V, Chen Z, Hedne N, Wilder-Smith P, Suresh A, Kuriakose MA. Intra-operative point-of-procedure delineation of oral cancer margins using optical coherence tomography. Oral Oncol 2019; 92:12-19. [PMID: 31010617 DOI: 10.1016/j.oraloncology.2019.03.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/18/2019] [Accepted: 03/09/2019] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Surgical margin status is a significant determinant of treatment outcome in oral cancer. Negative surgical margins can decrease the loco-regional recurrence by five-fold. The current standard of care of intraoperative clinical examination supplemented by histological frozen section, can result in a risk of positive margins from 5 to 17 percent. In this study, we attempted to assess the utility of intraoperative optical coherence tomography (OCT) imaging with automated diagnostic algorithm to improve on the current method of clinical evaluation of surgical margin in oral cancer. MATERIALS AND METHODS We have used a modified handheld OCT device with automated algorithm based diagnostic platform for imaging. Intraoperatively, images of 125 sites were captured from multiple zones around the tumor of oral cancer patients (n = 14) and compared with the clinical and pathologic diagnosis. RESULTS OCT showed sensitivity and specificity of 100%, equivalent to histological diagnosis (kappa, ĸ = 0.922), in detection of malignancy within tumor and tumor margin areas. In comparison, for dysplastic lesions, OCT-based detection showed a sensitivity of 92.5% and specificity of 68.8% and a moderate concordance with histopathology diagnosis (ĸ = 0.59). Additionally, the OCT scores could significantly differentiate squamous cell carcinoma (SCC) from dysplastic lesions (mild/moderate/severe; p ≤ 0.005) as well as the latter from the non-dysplastic lesions (p ≤ 0.05). CONCLUSION The current challenges associated with clinical examination-based margin assessment could be improved with intra-operative OCT imaging. OCT is capable of identifying microscopic tumor at the surgical margins and demonstrated the feasibility of mapping of field cancerization around the tumor.
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Affiliation(s)
- Sumsum P Sunny
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India; Integrated Head and Neck Oncology Program (DSRG-5), Mazumdar Shaw Medical Foundation, NH Health City, Bangalore, India
| | - Sagar Agarwal
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India
| | - Bonney Lee James
- Integrated Head and Neck Oncology Program (DSRG-5), Mazumdar Shaw Medical Foundation, NH Health City, Bangalore, India
| | | | - Anjana Muralidharan
- Integrated Head and Neck Oncology Program (DSRG-5), Mazumdar Shaw Medical Foundation, NH Health City, Bangalore, India
| | - Vishal Yadav
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India
| | - Vijay Pillai
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India
| | - Vivek Shetty
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India
| | | | - Naveen Hedne
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India
| | | | - Amritha Suresh
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India; Integrated Head and Neck Oncology Program (DSRG-5), Mazumdar Shaw Medical Foundation, NH Health City, Bangalore, India
| | - Moni Abraham Kuriakose
- Head and Neck Oncology, Mazumdar Shaw Medical Centre, NH Health City, Bangalore, India; Integrated Head and Neck Oncology Program (DSRG-5), Mazumdar Shaw Medical Foundation, NH Health City, Bangalore, India.
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45
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Lang BM, Balermpas P, Bauer A, Blum A, Brölsch GF, Dirschka T, Follmann M, Frank J, Frerich B, Fritz K, Hauschild A, Heindl LM, Howaldt HP, Ihrler S, Kakkassery V, Klumpp B, Krause-Bergmann A, Löser C, Meissner M, Sachse MM, Schlaak M, Schön MP, Tischendorf L, Tronnier M, Vordermark D, Welzel J, Weichenthal M, Wiegand S, Kaufmann R, Grabbe S. S2k Guidelines for Cutaneous Basal Cell Carcinoma - Part 1: Epidemiology, Genetics and Diagnosis. J Dtsch Dermatol Ges 2018; 17:94-103. [PMID: 30592557 DOI: 10.1111/ddg.13733] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Basal cell carcinoma is the most common malignant tumor among fair-skinned individuals, and its incidence has been rising steadily in the past decades. In order to maintain the highest quality of patient care possible, the German S2k guidelines were updated following a systematic literature search and with the participation of all professional societies and associations involved in the management of the disease. Part 1 highlights new developments in genetics in particular as well as aspects regarding epidemiology, diagnosis, and histology.
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Affiliation(s)
- Berenice M Lang
- Department of Dermatology, Mainz University Medical Center, Mainz, Germany
| | - Panagiotis Balermpas
- Department of Radiation Oncology, Frankfurt University Medical Center, Frankfurt, Germany
| | - Andrea Bauer
- Department of Dermatology, Carl Gustav Carus University Medical Center, Dresden, Germany
| | - Andreas Blum
- Dermatology and Teaching Practice, Konstanz, Germany
| | - G Felix Brölsch
- Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hanover Medical School, Hanover, Germany
| | - Thomas Dirschka
- CentroDerm Clinic, Wuppertal, Germany.,Faculty of Health, Witten-Herdecke University, Witten, Germany
| | | | - Jorge Frank
- Department of Dermatology, Venereology and Allergology, Göttingen University Medical Center, Göttingen, Germany
| | - Bernhard Frerich
- Department of Oral and Maxillofacial Plastic Surgery, Rostock University Medical Center, Rostock, Germany
| | - Klaus Fritz
- Dermatology and Laser Center, Landau, Germany
| | - Axel Hauschild
- Department of Dermatology, Venereology and Allergology, Schleswig-Holstein University Medical Center, Kiel, Germany
| | - Ludwig M Heindl
- Department of Ophthalmology, Cologne University Medical Center, Cologne, Germany
| | - Hans-Peter Howaldt
- Department of Oral and Maxillofacial Surgery, Gießen University Medical Center, Gießen, Germany
| | - Stephan Ihrler
- Laboratory for Dermatohistology and Oral Pathology, Munich, Germany
| | - Vinodh Kakkassery
- Department of Ophthalmology, Schleswig-Holstein University Medical Center, Lübeck, Germany.,Department of Ophthalmology, Rostock University Medical Center, Rostock, Germany
| | - Bernhard Klumpp
- Department of Diagnostic and Interventional Radiology, Tübingen University Medical Center, Tübingen, Germany.,Department of Radiology, Rems-Murr Medical Center, Winnenden, Germany
| | | | - Christoph Löser
- Department of Dermatology, Ludwigshafen Medical Center, Ludwigshafen, Germany
| | - Markus Meissner
- Department of Dermatology, Venereology and Allergology, Frankfurt University Medical Center, Frankfurt, Germany
| | - Michael M Sachse
- Department of Dermatology, Allergology and Phlebology, Bremerhaven Medical Center, Bremerhaven, Germany
| | - Max Schlaak
- Department of Dermatology and Allergology, Munich University Medical Center, Munich, Germany
| | - Michael P Schön
- Department of Dermatology, Venereology and Allergology, Göttingen University Medical Center, Göttingen, Germany
| | | | - Michael Tronnier
- Department of Dermatology, Venereology and Allergology, Helios Medical Center, Hildesheim, Germany
| | - Dirk Vordermark
- Department of Radiation Oncology, Halle University Medical Center, Martin Luther University, Halle, Germany
| | - Julia Welzel
- Department of Dermatology and Allergology, Augsburg Medical Center, Augsburg, Germany
| | - Michael Weichenthal
- Department of Dermatology, Venereology and Allergology, Schleswig-Holstein University Medical Center, Kiel, Germany
| | - Susanne Wiegand
- Department of Otolaryngology, Leipzig University Medical Center, Leipzig, Germany
| | - Roland Kaufmann
- Department of Dermatology, Venereology and Allergology, Frankfurt University Medical Center, Frankfurt, Germany
| | - Stephan Grabbe
- Department of Dermatology, Mainz University Medical Center, Mainz, Germany
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Ferrante di Ruffano L, Dinnes J, Deeks JJ, Chuchu N, Bayliss SE, Davenport C, Takwoingi Y, Godfrey K, O'Sullivan C, Matin RN, Tehrani H, Williams HC. Optical coherence tomography for diagnosing skin cancer in adults. Cochrane Database Syst Rev 2018; 12:CD013189. [PMID: 30521690 PMCID: PMC6516952 DOI: 10.1002/14651858.cd013189] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Early accurate detection of all skin cancer types is essential to guide appropriate management and to improve morbidity and survival. Melanoma and squamous cell carcinoma (SCC) are high-risk skin cancers, which have the potential to metastasise and ultimately lead to death, whereas basal cell carcinoma (BCC) is usually localised, with potential to infiltrate and damage surrounding tissue. Anxiety around missing early cases needs to be balanced against inappropriate referral and unnecessary excision of benign lesions. Optical coherence tomography (OCT) is a microscopic imaging technique, which magnifies the surface of a skin lesion using near-infrared light. Used in conjunction with clinical or dermoscopic examination of suspected skin cancer, or both, OCT may offer additional diagnostic information compared to other technologies. OBJECTIVES To determine the diagnostic accuracy of OCT for the detection of cutaneous invasive melanoma and atypical intraepidermal melanocytic variants, basal cell carcinoma (BCC), or cutaneous squamous cell carcinoma (cSCC) in adults. SEARCH METHODS We undertook a comprehensive search of the following databases from inception up to August 2016: Cochrane Central Register of Controlled Trials; MEDLINE; Embase; CINAHL; CPCI; Zetoc; Science Citation Index; US National Institutes of Health Ongoing Trials Register; NIHR Clinical Research Network Portfolio Database; and the World Health Organization International Clinical Trials Registry Platform. We studied reference lists and published systematic review articles. SELECTION CRITERIA We included studies of any design evaluating OCT in adults with lesions suspicious for invasive melanoma and atypical intraepidermal melanocytic variants, BCC or cSCC, compared with a reference standard of histological confirmation or clinical follow-up. DATA COLLECTION AND ANALYSIS Two review authors independently extracted data using a standardised data extraction and quality assessment form (based on QUADAS-2). Our unit of analysis was lesions. Where possible, we estimated summary sensitivities and specificities using the bivariate hierarchical model. MAIN RESULTS We included five studies with 529 cutaneous lesions (282 malignant lesions) providing nine datasets for OCT, two for visual inspection alone, and two for visual inspection plus dermoscopy. Studies were of moderate to unclear quality, using data-driven thresholds for test positivity and giving poor accounts of reference standard interpretation and blinding. Studies may not have been representative of populations eligible for OCT in practice, for example due to high disease prevalence in study populations, and may not have reflected how OCT is used in practice, for example by using previously acquired OCT images.It was not possible to make summary statements regarding accuracy of detection of melanoma or of cSCC because of the paucity of studies, small sample sizes, and for melanoma differences in the OCT technologies used (high-definition versus conventional resolution OCT), and differences in the degree of testing performed prior to OCT (i.e. visual inspection alone or visual inspection plus dermoscopy).Pooled data from two studies using conventional swept-source OCT alongside visual inspection and dermoscopy for the detection of BCC estimated the sensitivity of OCT as 95% (95% confidence interval (CI) 91% to 97%) and specificity of 77% (95% CI 69% to 83%).When applied to a hypothetical population of 1000 lesions at the mean observed BCC prevalence of 60%, OCT would miss 31 BCCs (91 fewer than would be missed by visual inspection alone and 53 fewer than would be missed by visual inspection plus dermoscopy), and OCT would lead to 93 false-positive results for BCC (a reduction in unnecessary excisions of 159 compared to using visual inspection alone and of 87 compared to visual inspection plus dermoscopy). AUTHORS' CONCLUSIONS Insufficient data are available on the use of OCT for the detection of melanoma or cSCC. Initial data suggest conventional OCT may have a role for the diagnosis of BCC in clinically challenging lesions, with our meta-analysis showing a higher sensitivity and higher specificity when compared to visual inspection plus dermoscopy. However, the small number of studies and varying methodological quality means implications to guide practice cannot currently be drawn.Appropriately designed prospective comparative studies are required, given the paucity of data comparing OCT with dermoscopy and other similar diagnostic aids such as reflectance confocal microscopy.
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Affiliation(s)
| | - Jacqueline Dinnes
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
- University Hospitals Birmingham NHS Foundation Trust and University of BirminghamNIHR Birmingham Biomedical Research CentreBirminghamUK
| | - Jonathan J Deeks
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
- University Hospitals Birmingham NHS Foundation Trust and University of BirminghamNIHR Birmingham Biomedical Research CentreBirminghamUK
| | - Naomi Chuchu
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
| | - Susan E Bayliss
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
| | - Clare Davenport
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
| | - Yemisi Takwoingi
- University of BirminghamInstitute of Applied Health ResearchEdgbaston CampusBirminghamUKB15 2TT
- University Hospitals Birmingham NHS Foundation Trust and University of BirminghamNIHR Birmingham Biomedical Research CentreBirminghamUK
| | - Kathie Godfrey
- The University of Nottinghamc/o Cochrane Skin GroupNottinghamUK
| | | | - Rubeta N Matin
- Churchill HospitalDepartment of DermatologyOld RoadHeadingtonOxfordUKOX3 7LE
| | - Hamid Tehrani
- Whiston HospitalDepartment of Plastic and Reconstructive SurgeryWarrington RoadLiverpoolUKL35 5DR
| | - Hywel C Williams
- University of NottinghamCentre of Evidence Based DermatologyQueen's Medical CentreDerby RoadNottinghamUKNG7 2UH
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Schneider SL, Kohli I, Hamzavi IH, Council ML, Rossi AM, Ozog DM. Emerging imaging technologies in dermatology: Part II: Applications and limitations. J Am Acad Dermatol 2018; 80:1121-1131. [PMID: 30528310 DOI: 10.1016/j.jaad.2018.11.043] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 11/14/2018] [Accepted: 11/20/2018] [Indexed: 12/11/2022]
Abstract
Clinical examination is critical for the diagnosis and identification of response to treatment. It is fortunate that technologies are continuing to evolve, enabling augmentation of classical clinical examination with noninvasive imaging modalities. This article discusses emerging technologies with a focus on digital photographic imaging, confocal microscopy, optical coherence tomography, and high-frequency ultrasound, as well as several additional developing modalities. The most readily adopted technologies to date include total-body digital photography and dermoscopy, with some practitioners beginning to use confocal microscopy. In this article, applications and limitations are addressed. For a detailed discussion of the principles involved in these technologies, please refer to the first part of this review article.
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Affiliation(s)
| | - Indermeet Kohli
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan
| | | | - M Laurin Council
- Division of Dermatology, Washington University, St. Louis, Missouri
| | - Anthony M Rossi
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - David M Ozog
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan.
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48
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Schneider SL, Kohli I, Hamzavi IH, Council ML, Rossi AM, Ozog DM. Emerging imaging technologies in dermatology: Part I: Basic principles. J Am Acad Dermatol 2018; 80:1114-1120. [PMID: 30528311 DOI: 10.1016/j.jaad.2018.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 11/14/2018] [Accepted: 11/20/2018] [Indexed: 12/27/2022]
Abstract
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.
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Affiliation(s)
| | - Indermeet Kohli
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan
| | | | - M Laurin Council
- Division of Dermatology, Washington University, St. Louis, Missouri
| | - Anthony M Rossi
- Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - David M Ozog
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan.
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49
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Reddy N, Nguyen B. The utility of optical coherence tomography for diagnosis of basal cell carcinoma: a quantitative review. Br J Dermatol 2018; 180:475-483. [DOI: 10.1111/bjd.17201] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2018] [Indexed: 12/14/2022]
Affiliation(s)
- N. Reddy
- Department of Dermatology Tufts Medical Center/Tufts University School of Medicine 800 Washington St, #114 Boston MA 02111 U.S.A
| | - B.T. Nguyen
- Department of Dermatology Tufts Medical Center/Tufts University School of Medicine 800 Washington St, #114 Boston MA 02111 U.S.A
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van Manen L, Dijkstra J, Boccara C, Benoit E, Vahrmeijer AL, Gora MJ, Mieog JSD. The clinical usefulness of optical coherence tomography during cancer interventions. J Cancer Res Clin Oncol 2018; 144:1967-1990. [PMID: 29926160 PMCID: PMC6153603 DOI: 10.1007/s00432-018-2690-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 06/16/2018] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Tumor detection and visualization plays a key role in the clinical workflow of a patient with suspected cancer, both in the diagnosis and treatment. Several optical imaging techniques have been evaluated for guidance during oncological interventions. Optical coherence tomography (OCT) is a technique which has been widely evaluated during the past decades. This review aims to determine the clinical usefulness of OCT during cancer interventions focussing on qualitative features, quantitative features and the diagnostic value of OCT. METHODS A systematic literature search was performed for articles published before May 2018 using OCT in the field of surgical oncology. Based on these articles, an overview of the clinical usefulness of OCT was provided per tumor type. RESULTS A total of 785 articles were revealed by our search, of which a total of 136 original articles were available for analysis, which formed the basis of this review. OCT is currently utilised for both preoperative diagnosis and intraoperative detection of skin, oral, lung, breast, hepatobiliary, gastrointestinal, urological, and gynaecological malignancies. It showed promising results in tumor detection on a microscopic level, especially using higher resolution imaging techniques, such as high-definition OCT and full-field OCT. CONCLUSION In the near future, OCT could be used as an additional tool during bronchoscopic or endoscopic interventions and could also be implemented in margin assessment during (laparoscopic) cancer surgery if a laparoscopic or handheld OCT device will be further developed to make routine clinical use possible.
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Affiliation(s)
- Labrinus van Manen
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Jouke Dijkstra
- Division of Image Processing, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - Alexander L Vahrmeijer
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Michalina J Gora
- ICube Laboratory, CNRS, Strasbourg University, Strasbourg, France
| | - J Sven D Mieog
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands.
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