Application of fractal dimension analysis
and photodynamic diagnosis in the case of differentiation
between lichen planus and leukoplakia: A preliminary study

Jurczyszyn, Kamil; Kazubowska, Klaudia; Kubasiewicz−Ross, Paweł; Ziółkowski, Piotr; Dominiak, Marzena

doi:10.17219/acem/80831

Cited by 10 publications

(13 citation statements)

References 27 publications

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“…Our previous study revealed that fractal dimension of OL foci of the tongue examined during a photodynamic diagnosis procedure was higher than FD during standard white light examination [34]. Our present study revealed no differences between the reference and post-op groups, and no differences were observed between the reference and intermediate groups in contrast to texture analysis.…”

Section: Discussioncontrasting

confidence: 52%

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Application of Texture and Fractal Dimension Analysis to Estimate Effectiveness of Oral Leukoplakia Treatment Using an Er:YAG Laser—A Prospective Study

Jurczyszyn

Kozakiewicz

2020

Materials

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Background: Oral leukoplakia (OL) is a potential neoplasmic lesion. The aim of this study was to apply texture analysis (TA) and fractal dimension analysis (FDA) to estimate the effectiveness of OL treatment using an Er:YAG laser. Methods: Eighteen patients with 32 lesions were treated. Laser procedures were conducted using the LiteTouch™ Er:YAG Dental Laser. The diameter of the operational tip was 1.3 mm, the power was 50 mJ, the frequency was 50 Hz, and the wavelength was 2940 nm. TA was based on long and short-run emphasis inverse moments, difference entropy, inverse difference moment, and wavelet decomposition for two-dimensional photography. FDA was measured using the box-counting method. Results: Total response was achieved in 50% of lesions, partial response was observed in 47%, and 3% of lesions did not respond to treatment. Recurrence occurred in 34% of lesions. TA features indicated pathological images depicting leukoplakia and complete reconstruction of the correct mucosal image after laser ablation. The discrete wavelet transformation feature detects much larger structures than the properties derived from the run-length matrix and co-occurrence matrix. Conclusions: The Er:YAG laser is an effective treatment method in cases of oral leukoplakia. Leukoplakia treatment by Er:YAG laser is an effective modality, as revealed by the oral mucosa microstructure. TA and FDA are promising methods to estimate the effectiveness of OL treatment.

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Section: Discussioncontrasting

confidence: 52%

“…After PDT application, a total response was achieved in 29% of lesions, and 59% was a rating of partial response. Lack of treatment effect was seen in 12% [34]. Han et al also used photodynamic therapy, and they reported 55.2% saw a complete response and 31.0% a partial response [35].…”

Section: Discussionmentioning

confidence: 99%

Application of Texture and Fractal Dimension Analysis to Estimate Effectiveness of Oral Leukoplakia Treatment Using an Er:YAG Laser—A Prospective Study

Jurczyszyn

Kozakiewicz

2020

Materials

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“…As a result, 16.6 percent of cases reached a CR, 66.6 percent a PR, and 16.6 percent showed NR to the treatment, resulting in a statistically significant difference ( P < .001) between the group of cases and the control group. A study by Jurczyszyn et al 35 evaluates the availment of photodynamic diagnosis and photodynamic therapy for lichen planus lesions and oral leukoplakia. Shorter wavelengths (405 nm) than those used for the PDT, indeed, allow for exciting the PPIX, leading to fluorescence and phosphorescence inside the photosensitized tissues.…”

Section: Resultsmentioning

confidence: 99%

The potential role of Photodynamic therapy in oral premalignant and malignant lesions: A systematic review

Romano

Stasio

Gentile

et al. 2021

J Oral Pathology Medicine

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Background Photodynamic therapy (PDT) is considered as a valid treatment option in various branches of dentistry. This systematic review aims to evaluate the usefulness of PDT for treatment of oral premalignant and malignant lesions. Methods The MeSH terms “Photodynamic therapy” and “PDT,” in combination with other terms, have been searched by three search engines (PubMed, ISI Web of Science, and the Cochrane Library), and a systematic review has been performed. The Population, Intervention, Comparison, Outcomes, and Study design (PICOS) has been applied as method to outline our study eligibility criteria. Risk of Bias in Non‐randomized Studies of Intervention (ROBINS‐I) has been performed too. Results Initial results were 1513. Definitely, 27 studies met our selection criteria. Conclusions Topical PDT is an easy to perform technique, well‐tolerated treatment and it appears to be an effective method with encouraging achievements in the treatment of premalignant and malignant lesions of the soft tissues of the oral cavity; nevertheless more studies are required to integrate the up‐to‐date experience of this application.

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“…Fractal dimensions have been applied in the investigation of oral mucosa pathology, while run-length and co-occurrence matrices have been used in osteoporosis studies to describe bone before oral surgery. 14,[16][17][18][19] Due to the lack of publications on pathological oral mucosa lesion diagnosis with texture analysis, the 4 features previously used in bone healing research were introduced into this study. 20,21 In leukoplakia, the normal, fine differences in brightness disappear and develop homogeneous white plates (Fig.…”

Section: Discussionmentioning

confidence: 99%

Differential diagnosis of leukoplakia versus lichen planus of the oral mucosa based on digital texture analysis in intraoral photography

Jurczyszyn¹,

Kozakiewicz

2019

Adv Clin Exp Med

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Application of fractal dimension analysis and photodynamic diagnosis in the case of differentiation between lichen planus and leukoplakia: A preliminary study

Cited by 10 publications

References 27 publications

Application of Texture and Fractal Dimension Analysis to Estimate Effectiveness of Oral Leukoplakia Treatment Using an Er:YAG Laser—A Prospective Study

Application of Texture and Fractal Dimension Analysis to Estimate Effectiveness of Oral Leukoplakia Treatment Using an Er:YAG Laser—A Prospective Study

The potential role of Photodynamic therapy in oral premalignant and malignant lesions: A systematic review

Differential diagnosis of leukoplakia versus lichen planus of the oral mucosa based on digital texture analysis in intraoral photography

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