The Value of Optical Coherence Tomography in Determining Surgical Margins in Squamous Cell Carcinoma of the Vulva: A Single-Center Prospective Study

2015 ◽  
Vol 25 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Ronni Wessels ◽  
Marc van Beurden ◽  
Daniel M. de Bruin ◽  
Dirk J. Faber ◽  
Andrew D. Vincent ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Optical Coherence Tomography ◽  
Cell Carcinoma ◽  
Layer Thickness ◽  
Surgical Margins ◽  
Optical Coherence ◽  
Epidermal Layer ◽  
Malignant Tissue ◽  
Benign Tissue ◽  
Oct Imaging

BackgroundVulvar squamous cell carcinoma (VSCC) is treated with wide local excision. The challenge is to remove as much skin as necessary to prevent recurrence, but meanwhile preserve genital skin to diminish morbidity. Optical coherence tomography (OCT) is a noninvasive imaging tool that produces cross-sectional images. Optical coherence tomography could be helpful in determining appropriate surgical margins during excision of VSCC.ObjectiveThis study aimed to assess the value of OCT in determining appropriate surgical margins in patients operated for VSCC. We hypothesize that benign tissue will differ qualitatively (presence of clear epidermal layers) and quantitatively (epidermal layer thickness and attenuation coefficient) from (pre)malignant tissue.Materials and MethodsIn 18 patients with a pretreatment biopsy of VSCC, before excision, areas within the center (tumor), at the margin (skin next to the center), and in normal vulvar skin outside the area of resection were imaged by OCT. Optical coherence tomography data were assessed on the presence of a clear epidermal layer, thickness of the epidermal layer, and values of μOCT. Results were grouped according to histopathological report in a benign group and a (pre)malignant group.ResultsA clear epidermal layer was observed in all OCT images of benign tissue and only in 6 of 23 premalignant lesions (P < 0.001). The epidermal layer thickness as well as the μOCT was significantly smaller for benign vulvar tissue than for (pre)malignant tissue (0.29 vs 1.03 mm, and 2.4 vs 4.1 mm−1, respectively; P < 0.001). The diagnostic accuracy of OCT, as calculated by receiver operating characteristic curve analysis, showed at defined thresholds a sensitivity of 100% and specificity of 80% when considering layer thickness, and a sensitivity of 100% and specificity of 70% when considering the attenuation coefficient.ConclusionsWe show that qualitative and quantitative OCT imaging can distinguish between benign and (pre)malignant vulvar tissue, enabling appropriate surgical margin detection with noninvasive in vivo OCT imaging.

scholarly journals Optical Coherence Tomography of Peri-Ocular Skin Cancers: An Optical Biopsy

2020 ◽  
pp. 1-9
Author(s):  
Sabrina Bergeron ◽  
Bryan Arthurs ◽  
Debra-Meghan Sanft ◽  
Christina Mastromonaco ◽  
Miguel N. Burnier Jr.
Keyword(s):  
Squamous Cell Carcinoma ◽  
Optical Coherence Tomography ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Skin Lesions ◽  
Sebaceous Carcinoma ◽  
Optical Coherence ◽  
Oct Imaging

<b><i>Introduction:</i></b> Optical coherence tomography (OCT) imaging has been used as a diagnostic tool for retinal disease for several years, and OCT apparatuses are becoming increasingly powerful. However, OCT has yet to reach its full potential in ophthalmology clinics. Alike retinal layers, it has been shown that OCT is able to generate cross-sectional images of the skin and allows visualization of skin lesions in a histopathology-like manner. <b><i>Objective:</i></b> We aim to validate OCT as an imaging modality for peri-ocular skin cancer. Through a series of cases, we highlight findings for 3 common eyelid malignancies: basal cell carcinoma, squamous cell carcinoma and sebaceous carcinoma. We propose an OCT image-based signature for basal cell carcinoma. <b><i>Methods:</i></b> This is a prospective study. Fifty-eight lesions suspicious of malignancy from 57 patients were subjected to OCT imaging prior to the surgical excision of the lesion. OCT images were analysed and scored according to previously identified OCT features. Eight representative examples are presented, highlighting the OCT patterns for each malignancy side by side to its corresponding histopathological sections. <b><i>Results:</i></b> Out of the 58 lesions analysed, 53 were malignant. A loss of the dermal-epidermal junction is observed in all malignant lesions. A strong link is observed between the presence of subepithelial hyporeflective nests on OCT and the diagnosis of basal cell carcinoma (present in 83% of cases). Conversely, lesions of epithelial origin such as squamous cell carcinoma are most often represented on OCT by acanthosis. Two supplementary cases, one basal cell carcinoma and one sebaceous carcinoma, are provided to illustrate how OCT imaging is a valuable tool in cases where clinical observations may be unusual. <b><i>Conclusions:</i></b> We provide evidence supporting the use of OCT for the evaluation of peri-ocular cancers. OCT enables visualization of the skin layers in vivo, before biopsy. Our results show that certain OCT features can contribute to include or exclude a diagnosis of basal cell carcinoma. By integrating this non-invasive imaging methodology into the routine assessment of peri-ocular skin lesions, especially in health care centres where access to specialists is limited, OCT imaging can increase clinical precision, reduce delays in patient referral and enhance patient care.

scholarly journals Manually scanned single fiber optical coherence tomography for skin cancer characterization

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nadiya Chuchvara ◽  
Babar Rao ◽  
Xuan Liu
Keyword(s):  
Optical Coherence Tomography ◽  
Cell Carcinoma ◽  
Normal Skin ◽  
Surgical Margins ◽  
Single Fiber ◽  
Optical Coherence ◽  
Fiber Probe ◽  
Imaging Device ◽  
Skin Morphology

AbstractOptical 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.

Global spectral and local molecular connects for optical coherence tomography features to classify oral lesions towards unravelling quantitative imaging biomarkers

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 7511-7520 ◽  
Author(s):  
Satarupa Banerjee ◽  
Swarnadip Chatterjee ◽  
Anji Anura ◽  
Jitamanyu Chakrabarty ◽  
Mousumi Pal ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Optical Coherence Tomography ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Quantitative Imaging ◽  
Imaging Biomarkers ◽  
Oral Lesions ◽  
Optical Coherence ◽  
Submucous Fibrosis ◽  
Oral Precancers

The biopsy based diagnosis of oral precancers like leukoplakia (OLK) and submucous fibrosis (OSF) as well as squamous cell carcinoma (OSCC) suffers from observer specific variability.

Optical Imaging of Oral Squamous Cell Carcinoma Using Optical Coherence Tomography and Micro CT

2013 ◽  
Vol 587 ◽  
pp. 331-337 ◽  
Author(s):  
Silvana Cânjău ◽  
Carmen Todea ◽  
Cosmin Sinescu ◽  
Meda Lavinia Negrutiu ◽  
Virgil Duma ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Optical Coherence Tomography ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Imaging Modality ◽  
Diagnostic Delay ◽  
Optical Coherence ◽  
Micro Ct ◽  
Near Surface

Oral squamous cell carcinoma (OSCC) constitutes 90% of oral cancer. Early detection is a cornerstone to improve survival and to reduce diagnostic delay. We propose optical coherence tomography (OCT), as a non-invasive diagnosis method. OCT represents a new high-resolution optical technique that permits 3D, real-time imaging of near surface abnormalities in complex tissues. In the present study half of the excisional biopsy was directed to the pathologist and the other half was assigned for OCT and Micro-CT investigation. For the OCT imaging it was used an OCT prototype (1300 nm), Synchrotron Radiation Micro-CT and histopathology validated the results. Areas of OSCC of the buccal mucosa were identified in the OCT images by the disruption of the basement membrane, an epithelial layer that was highly variable in thickness, with areas of erosion, extensive epithelial down-growth and invasion into the sub-epithelial layers. In this respect, OCT seems to be a highly promising imaging modality.

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