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Wu YX, Mao QY, Kang YF, Xie S, Shan XF, Cai ZG. In Vivo Oral Sentinel Lymph Node Mapping by Near-Infrared Fluorescent Methylene Blue in Rats. Diagnostics (Basel) 2022; 12:diagnostics12112574. [PMID: 36359418 PMCID: PMC9689899 DOI: 10.3390/diagnostics12112574] [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: 09/29/2022] [Revised: 10/17/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to demonstrate the feasibility of near-infrared (NIR) fluorescence imaging using methylene blue (MB) for detecting oral sentinel lymph nodes (SLNs) in rats and compared MB’s tracer effects with those of indocyanine green (ICG) in SLN mapping. Different concentrations of MB were injected into the rats’ left lingual submucosa to determine the optimal concentration by using a continuous (1 h) MI-1 fluorescence imaging system. To compare the tracer effects of the optimal MB concentration with ICG in oral SLN mapping, MI-1 imaging was continuously monitored for 12 h. The mean signal-to-background ratio (SBR) of the SLNs and SLN fluorescence area fraction were analyzed. SLNs and lymphatic vessels were clearly visible in all rats. The optimal injection dose of MB infected into lingual submucosa for NIR fluorescence imaging was 0.2 mL of 6.68 mM MB. During continuous monitoring for 12 h, the mean SBR of the SLNs was significantly higher in the ICG groups than in the MB groups (p < 0.001). However, the area fraction of SLN fluorescence in the ICG groups increased continuously, owing to strong fluorescent contamination. This study examined the feasibility of detection of draining lymph nodes in the oral cavity of rats using MB NIR fluorescence imaging. MB causes less fluorescent contamination than does ICG, which shows promise for clinical research and application.
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Affiliation(s)
- Yu-Xiao Wu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Qian-Ying Mao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Yi-Fan Kang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Shang Xie
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Xiao-Feng Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Zhi-Gang Cai
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Beijing 100081, China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
- Correspondence: ; Tel.: +86-13910733943; Fax: +86-10-62173402
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Bove S, Fragomeni SM, Romito A, DI Giorgio D, Rinaldi P, Pagliara D, Verri D, Romito I, Paris I, Tagliaferri L, Marazzi F, Visconti G, Franceschini G, Masetti R, Garganese G. Techniques for sentinel node biopsy in breast cancer. Minerva Surg 2021; 76:550-563. [PMID: 34338468 DOI: 10.23736/s2724-5691.21.09002-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Sentinel node biopsy (SNB) is the standard of care in women with breast cancer (BC) and clinically non suspicious axillary lymph nodes (LNs), due to its high negative predictive value (NPV) in the assessment of nodal status. SNB has significantly reduced complications related to the axillary lymph node dissection, such as lymphedema and upper limb dysfunction. EVIDENCE ACQUISITION The gold standard technique for SNB is the blue dye (BD) and technetium labelled nanocolloid (Tc-99m) double technique. However, nuclear medicine is not available in all Institutions and several new tracers and devices have been proposed, such as indocyanine green (ICG) and superparamagnetic iron oxides (SPIO). All these techniques show an accuracy and detection rate not inferior to that of the standard technique, with different specific pros and cons. The choice of how to perform a SNB primarily depends on the surgeon's confidence with the procedure, the availability of nuclear medicine and the economic resources of the Institutions. In this setting, new tracers, hybrid tracers and imaging techniques are being evaluated in order to improve the detection rate of sentinel lymph nodes (SNs) and minimize the number of unnecessary axillary surgeries through an accurate preoperative assessment of nodal status and to guide new minimally invasive diagnostic procedures of SNs. In particular, the contrast-enhanced ultrasound (CEUS) is an active field of research but cannot be recommended for clinical use at this time. EVIDENCE SYNTHESIS The ICG fluorescence technique was superior in terms of DR, as well as having the lowest FNR. The DR descending order was SPIO, Tc, dual modality (Tc/BD), CEUS and BD. CONCLUSIONS This paper is a narrative review of the most common SNB techniques in BC with a focus on recent innovations.
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Affiliation(s)
- Sonia Bove
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy
| | - Simona M Fragomeni
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Alessia Romito
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy -
| | | | - Pierluigi Rinaldi
- Radiology and Interventional Radiology Unit, Mater Olbia Hospital, Olbia, Italy.,Dipartimento di Diagnostica per immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Domenico Pagliara
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy
| | - Debora Verri
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy
| | - Ilaria Romito
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy
| | - Ida Paris
- Unità di Ginecologia Oncologica, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Luca Tagliaferri
- Dipartimento di Diagnostica per immagini, Radioterapia Oncologica ed Ematologia - Gemelli ART (Advanced Radiation Therapy), Interventional Oncology Center (IOC), Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Fabio Marazzi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giuseppe Visconti
- Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, UOC Chirurgia Plastica, Università Cattolica del Sacro Cuore - Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Gianluca Franceschini
- Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Multidisciplinary Breast Center, Università Cattolica del Sacro Cuore - Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Riccardo Masetti
- Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Multidisciplinary Breast Center, Università Cattolica del Sacro Cuore - Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Giorgia Garganese
- Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy.,Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
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