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Sebastian K, Wojciech L, Ewa M, Kawczyk-Krupka A, Maciej K, Karolina C, Grzegorz C, Aleksander S, Karolina S. Autofluorescence imaging of Barrett's esophageal lesions with additional transformation into spatial images of green autofluorescence intensity. Photodiagnosis Photodyn Ther 2021; 36:102557. [PMID: 34597829 DOI: 10.1016/j.pdpdt.2021.102557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 09/10/2021] [Accepted: 09/24/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Early diagnosis of patients with Barrett's esophagus is required to implement appropriate treatment to prevent neoplastic disease development. In this work, we examined the usefulness of autofluorescence imaging as a method to increase the sensitivity of targeted biopsy under numerical color value control with the additional conversion of autofluorescence images into spatial green autofluorescence intensity images. METHODS 148 patients were included in the study. Autofluorescence imaging was used in each endoscopic examination. The obtained images of lesions were transformed with Image Pro PLUS 5.0.2 software to show the points of lesions with the highest values of numerical color value and the lowest green intensity. The obtained results were analyzed statistically using Statistica 8.0 software. Mann-Whitney U test was used to compare red to green ratio, red fluorescence intensity and green color intensity between the examined groups of lesions. RESULTS Thanks to targeted biopsy under the control of red to green ratio factor and green autofluorescence intensity, this imaging method's sensitivity was also increased in all studied stages of histopathological dysplasia in Barrett's esophagus. In total analysis, the sensitivity of tri-modal imaging with the analysis of green autofluorescence intensity was almost 97%. The spatial maps of autofluorescence intensity significantly improved the effectiveness of biopsies performed to take tissue samples for a histopathological examination compared to white light endoscopy. The extension of autofluorescence to spatial autofluorescence intensity maps significantly reduced the percentage of false-negative results. CONCLUSIONS The study results indicate that autofluorescence imaging allows for assessing the extent of dysplasia lesions and determining the margin of healthy and pathologically effected tissues. Our team's method to convert autofluorescence images into spatial images of green autofluorescence intensity further increased the sensitivity of the study.
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Affiliation(s)
- Kwiatek Sebastian
- Sergeant Grzegorz Załoga Hospital of the Ministry of the Interior and Administration in Katowice, Głowackiego 10 Street, 40-052 Katowice, Poland
| | - Latos Wojciech
- Specialist Hospital No2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis, Batorego 15 Street, 41-902 Bytom, Poland
| | - Mańka Ewa
- Students Research Group, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis, Batorego 15 Street, 41-902 Bytom, Poland; Faculty od Medical Sciences in Katowice, Medical University of Silesia, Poland
| | - Aleksandra Kawczyk-Krupka
- Specialist Hospital No2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis, Batorego 15 Street, 41-902 Bytom, Poland
| | - Krupowies Maciej
- Sergeant Grzegorz Załoga Hospital of the Ministry of the Interior and Administration in Katowice, Głowackiego 10 Street, 40-052 Katowice, Poland
| | - Cesarz Karolina
- Sergeant Grzegorz Załoga Hospital of the Ministry of the Interior and Administration in Katowice, Głowackiego 10 Street, 40-052 Katowice, Poland
| | - Cieślar Grzegorz
- Specialist Hospital No2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis, Batorego 15 Street, 41-902 Bytom, Poland
| | - Sieroń Aleksander
- Faculty of Health Sciences, Jan Długosz University in Częstochowa, Waszyngtona 4/5 Street, 42-200 Częstochowa, Poland
| | - Sieroń Karolina
- School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Department of Physical Medicine, Chair of Physiotherapy, Medyków 12 Street, 40-751 Katowice, Poland.
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Bi Y, Min M, Cui Y, Xu Y, Li X. Research Progress of Autofluorescence Imaging Technology in the Diagnosis of Early Gastrointestinal Tumors. Cancer Control 2021; 28:10732748211044337. [PMID: 34569317 PMCID: PMC8477687 DOI: 10.1177/10732748211044337] [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] [Indexed: 12/03/2022] Open
Abstract
Early diagnosis and early treatment of gastrointestinal tumors are helpful to improve the prognosis of patients. Endoscopy is the best method for the diagnosis of early gastrointestinal tumors, but some early flat tumors may be missed under conventional white-light endoscopy. In order to improve the accuracy of endoscopic diagnosis of gastrointestinal tumors, especially early flat tumors, endoscopic autofluorescence imaging (AFI) as a new technique has been widely used in clinics in recent years. This article reviews the progress of the clinical application of AFI in the diagnosis of various gastrointestinal tumors.
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Affiliation(s)
- Yiliang Bi
- Department of Gastroenterology, 26460The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Min Min
- Department of Gastroenterology, 26460The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yinshu Cui
- Department of Oncology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuanyuan Xu
- Department of Oncology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaosong Li
- Department of Oncology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
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Romano A, Di Stasio D, Petruzzi M, Fiori F, Lajolo C, Santarelli A, Lucchese A, Serpico R, Contaldo M. Noninvasive Imaging Methods to Improve the Diagnosis of Oral Carcinoma and Its Precursors: State of the Art and Proposal of a Three-Step Diagnostic Process. Cancers (Basel) 2021; 13:cancers13122864. [PMID: 34201237 PMCID: PMC8228647 DOI: 10.3390/cancers13122864] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Oral squamous cell carcinoma (OSCC) accounts for 90–95% of malignant tumors of the lip and oral cavity and is associated with high mortality in the advanced stages. Early diagnosis is a challenge for oral pathologists and dentists, due to the ambiguous appearance of early OSCC, which is often misdiagnosed, mistreated, and associated with diagnostic delay. The gold standards for OSCC diagnosis are biopsy and histopathological assessment, but these procedures are invasive and time-consuming. Adjunctive noninvasive techniques allow the definition of the malignant features of a suspicious lesion in real time and noninvasively, thus improving the diagnostic procedure. The present review aimed to focus on some of the main promising noninvasive imaging techniques, to highlight their perspective adoption in a three-step diagnosis, which is idealistically faster and better, as well as enables the patient’s compliance. Abstract Oral squamous cell carcinoma (OSCC) is the most prevalent form of cancer of lips and oral cavity, and its diagnostic delay, caused by misdiagnosis at the early stages, is responsible for high mortality ratios. Biopsy and histopathological assessment are the gold standards for OSCC diagnosis, but they are time-consuming, invasive, and do not always enable the patient’s compliance, mainly in cases of follow-up with the need for more biopsies. The use of adjunctive noninvasive imaging techniques improves the diagnostic approach, making it faster and better accepted by patients. The present review aims to focus on the most consolidated diagnostic techniques, such as vital staining and tissue autofluorescence, and to report the potential role of some of the most promising innovative techniques, such as narrow-band imaging, high-frequency ultrasounds, optical coherence tomography, and in vivo confocal microscopy. According to their contribution to OSCC diagnosis, an ideal three-step diagnostic procedure is proposed, to make the diagnostic path faster, better, and more accurate.
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Affiliation(s)
- Antonio Romano
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
| | - Dario Di Stasio
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
| | - Massimo Petruzzi
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, Piazza Giulio Cesare 11, 70124 Bari, Italy;
| | - Fausto Fiori
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
| | - Carlo Lajolo
- Head and Neck Department, Fondazione Policlinico Universitario A. Gemelli–IRCCS, School of Dentistry, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy;
| | - Andrea Santarelli
- Department of Clinical Specialist and Dental Sciences, Marche Polytechnic University, Via Tronto 10, 60126 Ancona, Italy;
| | - Alberta Lucchese
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
| | - Rosario Serpico
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
| | - Maria Contaldo
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via Luigi de Crecchio, 6, 80138 Naples, Italy; (A.R.); (D.D.S.); (F.F.); (A.L.); (R.S.)
- Correspondence: ; Tel.: +39-3204876058
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Kwiatek S, Kawczyk-Krupka A, Mańka E, Cieślar G, Sieroń A, Stanek A. Can fluorescence and autofluorescence imaging be useful in diagnosis of basal cell cancer? Proposition of algorithms. Photodiagnosis Photodyn Ther 2020; 30:101697. [DOI: 10.1016/j.pdpdt.2020.101697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/22/2020] [Accepted: 02/24/2020] [Indexed: 11/16/2022]
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Kawczyk-Krupka A, Bartusik-Aebisher D, Latos W, Cieślar G, Sieroń K, Kwiatek S, Oleś P, Kwiatek B, Aebisher D, Krupka M, Wiench R, Skaba D, Olek M, Kasperski J, Czuba Z, Sieroń A. Clinical Trials and Basic Research in Photodynamic Diagnostics and Therapies from the Center for Laser Diagnostics and Therapy in Poland. Photochem Photobiol 2020; 96:539-549. [PMID: 32112419 DOI: 10.1111/php.13243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/09/2020] [Indexed: 12/29/2022]
Abstract
The purpose of this review is to present an overview of the development of photodiagnostic and photodynamic therapy (PDD and PDT) techniques in Poland. The paper discusses the principles of PDD, including fluorescent techniques in determining precancerous conditions and cancers of the skin, digestive tract, bladder and respiratory tract. Methods of PDT of cancer will be discussed and the current state of knowledge as well as future trends in the development of photodynamic techniques will be presented, including the possibility of using photodynamic antimicrobial therapy. Research pioneers in photodynamic medicine such as Thomas Dougherty are an inspiration for the development of methods of PDD and PDT in our Clinic. The Center for Laser Diagnostics and Therapy in Bytom, Poland, promotes the propagation of PDD and PDT through the training of clinicians and raising awareness among students in training and the general public. Physicians at the Center are engaged in photomedical research aimed at clinical implementation and exploration of new avenues in photomedicine while optimizing existing modalities. The Center promotes dissemination of clinical results from a wide range of topics in PDD and PDT and serving as representative authorities of photodynamic medicine in Poland and Europe.
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Affiliation(s)
- Aleksandra Kawczyk-Krupka
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | | | - Wojciech Latos
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - Karolina Sieroń
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland.,Department of Physical Medicine, Chair of Physiotherapy, Medical University of Silesia, Katowice, Poland
| | - Sebastian Kwiatek
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - Piotr Oleś
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - Beata Kwiatek
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - David Aebisher
- Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Magdalena Krupka
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland
| | - Rafał Wiench
- Department of Periodontal Diseases and Oral Mucosa Diseases, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Dariusz Skaba
- Department of Periodontal Diseases and Oral Mucosa Diseases, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Marcin Olek
- Department of Prosthetic Dentistry, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Jacek Kasperski
- Department of Prosthetic Dentistry, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Zenon Czuba
- Department of Microbiology and Immunology, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Aleksander Sieroń
- Department of Internal Medicine, Angiology, and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Bytom, Poland.,Department of Physiotherapy, Jan Dlugosz University in Częstochowa, Częstochowa, Poland
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Evaluation of autofluorescence and photodynamic diagnosis in assessment of bladder lesions. Photodiagnosis Photodyn Ther 2020; 30:101719. [PMID: 32165336 DOI: 10.1016/j.pdpdt.2020.101719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/16/2020] [Accepted: 03/06/2020] [Indexed: 12/24/2022]
Abstract
The ability to detect and diagnose bladder cancer early and precisely is crucial for effective treatment. The aim of this study is to assess the utility of optical biopsy performed with autofluorescence cystoscopy (AFC) using the Onco-LIFE system with numerical color values (NCVs) and by ALA/PDD. Histopathological examination of material obtained during TURBT and/or biopsy of the bladder was carried out in 251 patients. In the case of 35 patients, the selection of the specimen collected for histopathological examination was based using ALA/PDD. In the remaining 216 patients, tissue was collected based on the findings of AFC with NCV. Using AFC, the observed NCV ranged from 0 to 3.86; the highest mean NCV was observed in neoplastic muscle invasive lesions and was equal to 3.18. Furthermore, non-muscle invasive tumors were characterized by a mean NCV equal to 1.54. Tissue with inflammation, metaplasia, and healthy tissue demonstrated significantly lower mean NCV values. The presence of a muscle-invasive tumor increased the NCV by approximately 2.86 compared to healthy tissue. The rates of postoperative complications depend on the examining operator and are observed more often, as much as 65.7 % during ALA/PDD. AFC with NCV using the Onco-LIFE system, as well as ALA/PDD are helpful tools for early diagnosis of bladder precancerous and cancer lesions and for performing targeted biopsies. A significant correlation was found between lesion NCV index and the grade of dysplasia or tumor malignancy. Tissue with inflammation, metaplasia, and healthy tissue demonstrated significantly lower mean NCV values. AFE with NCV have a significantly higher sensitivity than specificity. Low rates of postoperative complications are correlated to the experience of the endoscopist and with AFE/NCV in comparison of ALA/PDD.
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Strzelczyk N, Kwiatek S, Latos W, Sieroń A, Stanek A. Does the Numerical Colour Value (NCV) correlate with preneoplastic and neoplastic colorectal lesions? Photodiagnosis Photodyn Ther 2018; 23:353-361. [PMID: 30055281 DOI: 10.1016/j.pdpdt.2018.07.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND White light endoscopy (WLE) is the gold standard for detection of colorectal cancer. Autofluorescence endoscopy (AFE) is among the novel methods expected to increase the sensitivity and specificity of endoscopic diagnosis. The main objective of the study was to determine the diagnostic efficacy of AFE for the detection of preneoplastic and neoplastic colorectal lesions and to identify high-grade neoplasia using Numerical Colour Value (NCV). METHODS This retrospective study included 188 patients with colorectal mucosal lesions diagnosed on WLE and assessed using AFE; they were included in the study if a complete patient record was available (description of visualized colorectal lesions, NCV and histopathology report). The NCV was compared with the histological result. RESULTS Histology revealed 38 hyperplastic colon polyps, 77 low-grade dysplastic lesions, 17 high-grade dysplastic lesions, 24 adenocarcinomas and 32 inflammatory lesions. The mean NCVs of high-grade dysplasia (HGD) and adenocarcinoma were 2.24 ± 0.22 and 2.73 ± 0.16, respectively, significantly higher than the NCV of hyperplastic colon polyps (0.95 ± 0.06), low-grade dysplasia (LGD) (1.27 ± 0.05) and inflammatory lesions (1.26 ± 0.17). The NCV cut-off value for HGD and adenocarcinoma was set at 1.7. The sensitivity, specificity, PPV (positive predictive value) and NPV (negative predictive value) were 95.2%, 87.9%, 97.5%, 84.8%, respectively. CONCLUSION Our study showed that AFE could provide useful diagnostic information regarding preneoplastic and neoplastic colorectal lesions. Additionally, the NCV significantly correlated with the histopathology results.
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Affiliation(s)
- Natalia Strzelczyk
- Specialist Hospital No 2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis and Therapy, Batorego Street 15, 41-902 Bytom, Poland
| | - Sebastian Kwiatek
- Specialist Hospital No 2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis and Therapy, Batorego Street 15, 41-902 Bytom, Poland
| | - Wojciech Latos
- Specialist Hospital No 2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnosis and Therapy, Batorego Street 15, 41-902 Bytom, Poland
| | - Aleksander Sieroń
- School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnosis and Therapy, Medical University of Silesia, Batorego Street 15, 41-902 Bytom, Poland
| | - Agata Stanek
- School of Medicine with the Division of Dentistry in Zabrze, Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnosis and Therapy, Medical University of Silesia, Batorego Street 15, 41-902 Bytom, Poland.
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Photodiagnosis – Update. Photodiagnosis Photodyn Ther 2017. [DOI: 10.1016/j.pdpdt.2017.01.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Mannelli G, Cecconi L, Gallo O. Laryngeal preneoplastic lesions and cancer: challenging diagnosis. Qualitative literature review and meta-analysis. Crit Rev Oncol Hematol 2016; 106:64-90. [DOI: 10.1016/j.critrevonc.2016.07.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 06/04/2016] [Accepted: 07/11/2016] [Indexed: 11/27/2022] Open
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10
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Accuracy of autofluorescence in diagnosing oral squamous cell carcinoma and oral potentially malignant disorders: a comparative study with aero-digestive lesions. Sci Rep 2016; 6:29943. [PMID: 27416981 PMCID: PMC4945954 DOI: 10.1038/srep29943] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 06/24/2016] [Indexed: 02/05/2023] Open
Abstract
Presently, various studies had investigated the accuracy of autofluorescence in diagnosing oral squamous cell carcinoma (OSCC) and oral potentially malignant disorders (OPMD) with diverse conclusions. This study aimed to assess its accuracy for OSCC and OPMD and to investigate its applicability in general dental practice. After a comprehensive literature search, a meta-analysis was conducted to calculate the pooled diagnostic indexes of autofluorescence for premalignant lesions (PML) and malignant lesions (ML) of the oral cavity, lung, esophagus, stomach and colorectum and to compute indexes regarding the detection of OSCC aided by algorithms. Besides, a u test was performed. Twenty-four studies detecting OSCC and OPMD in 2761 lesions were included. This demonstrated that the overall accuracy of autofluorescence for OSCC and OPMD was superior to PML and ML of the lung, esophagus and stomach, slightly inferior to the colorectum. Additionally, the sensitivity and specificity for OSCC and OPMD were 0.89 and 0.8, respectively. Furthermore, the specificity could be remarkably improved by additional algorithms. With relatively high accuracy, autofluorescence could be potentially applied as an adjunct for early diagnosis of OSCC and OPMD. Moreover, approaches such as algorithms could enhance its specificity to ensure its efficacy in primary care.
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Tibbetts KM, Tan M. Role of Advanced Laryngeal Imaging in Glottic Cancer. Otolaryngol Clin North Am 2015; 48:565-84. [DOI: 10.1016/j.otc.2015.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Włodarski M, Kaliszewski M, Trafny EA, Szpakowska M, Lewandowski R, Bombalska A, Kwaśny M, Kopczyński K, Mularczyk-Oliwa M. Fast, reagentless and reliable screening of "white powders" during the bioterrorism hoaxes. Forensic Sci Int 2015; 248:71-7. [PMID: 25598484 DOI: 10.1016/j.forsciint.2014.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 12/15/2014] [Accepted: 12/19/2014] [Indexed: 11/28/2022]
Abstract
The classification of dry powder samples is an important step in managing the consequences of terrorist incidents. Fluorescence decays of these samples (vegetative bacteria, bacterial endospores, fungi, albumins and several flours) were measured with stroboscopic technique using an EasyLife LS system PTI. Three pulsed nanosecond LED sources, generating 280, 340 and 460nm were employed for samples excitation. The usefulness of a new 460nm light source for fluorescence measurements of dry microbial cells has been demonstrated. The principal component analysis (PCA) and hierarchical cluster analysis (HCA) have been used for classification of dry biological samples. It showed that the single excitation wavelength was not sufficient for differentiation of biological samples of diverse origin. However, merging fluorescence decays from two or three excitation wavelengths allowed classification of these samples. An experimental setup allowing the practical implementation of this method for the real time fluorescence decay measurement was designed. It consisted of the LED emitting nanosecond pulses at 280nm and two fast photomultiplier tubes (PMTs) for signal detection in two fluorescence bands simultaneously. The positive results of the dry powder samples measurements confirmed that the fluorescence decay-based technique could be a useful tool for fast classification of the suspected "white powders" performed by the first responders.
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Affiliation(s)
- Maksymilian Włodarski
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland
| | - Miron Kaliszewski
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland.
| | - Elżbieta Anna Trafny
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland; Department of Microbiology, Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
| | - Małgorzata Szpakowska
- Department of Microbiology, Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
| | - Rafał Lewandowski
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland; Department of Microbiology, Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
| | - Aneta Bombalska
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland
| | - Mirosław Kwaśny
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland
| | - Krzysztof Kopczyński
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland
| | - Monika Mularczyk-Oliwa
- Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw, Poland
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Sieroń A, Sieroń-Stołtny K, Kawczyk-Krupka A, Latos W, Kwiatek S, Straszak D, Bugaj AM. The role of fluorescence diagnosis in clinical practice. Onco Targets Ther 2013; 6:977-82. [PMID: 23935372 PMCID: PMC3735341 DOI: 10.2147/ott.s42074] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Fluorescence diagnosis is a fast, easy, noninvasive, selective, and sensitive diagnostic tool for estimation of treatment results in oncology. In clinical practice the use of photodynamic diagnosis is focused on five targets: detection for prevention of malignant transformation precancerous changes, detection of neoplasmatic tissue in the early stages for fast removal, prevention of expansion and detection of recurrence of the cancer, monitoring therapy, and the possibility of excluding neoplasmatic disease. In this article, selected applications of fluorescence diagnosis at the Center for Laser Diagnostics and Therapy in Bytom, Poland, for each of these targets are presented.
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Affiliation(s)
- Aleksander Sieroń
- Clinical Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Silesian Medical University, Bytom
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Caffier PP, Schmidt B, Gross M, Karnetzky K, Nawka T, Rotter A, Seipelt M, Sedlmaier B. A comparison of white light laryngostroboscopy versus autofluorescence endoscopy in the evaluation of vocal fold pathology. Laryngoscope 2013; 123:1729-34. [DOI: 10.1002/lary.23931] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 10/25/2012] [Accepted: 11/13/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Philipp P. Caffier
- Department of Audiology and Phoniatrics; Charité - University Medicine Berlin; Berlin; Germany
| | - Bernd Schmidt
- Clinic for Internal Medicine; Department of Pneumology; University Clinic Halle; Halle; (Saale); Germany
| | - Manfred Gross
- Department of Audiology and Phoniatrics; Charité - University Medicine Berlin; Berlin; Germany
| | - Klaus Karnetzky
- Department of Otorhinolaryngology-Head and Neck Surgery; Charité - University Medicine Berlin; Berlin; Germany
| | - Tadeus Nawka
- Department of Audiology and Phoniatrics; Charité - University Medicine Berlin; Berlin; Germany
| | - Andreas Rotter
- Department of Otorhinolaryngology-Head and Neck Surgery; Charité - University Medicine Berlin; Berlin; Germany
| | - Matthias Seipelt
- Department of Audiology and Phoniatrics; Charité - University Medicine Berlin; Berlin; Germany
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Han JP, Hong SJ. Diagnosis of Barrett's Esophagus. THE KOREAN JOURNAL OF HELICOBACTER AND UPPER GASTROINTESTINAL RESEARCH 2012. [DOI: 10.7704/kjhugr.2012.12.2.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jae Pil Han
- Department of Internal Medicine, Soon Chun Hyang University College of Medicine, Bucheon, Korea
| | - Su Jin Hong
- Department of Internal Medicine, Soon Chun Hyang University College of Medicine, Bucheon, Korea
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