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Boland PA, Hardy NP, Moynihan A, McEntee PD, Loo C, Fenlon H, Cahill RA. Intraoperative near infrared functional imaging of rectal cancer using artificial intelligence methods - now and near future state of the art. Eur J Nucl Med Mol Imaging 2024; 51:3135-3148. [PMID: 38858280 PMCID: PMC11300525 DOI: 10.1007/s00259-024-06731-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 04/15/2024] [Indexed: 06/12/2024]
Abstract
Colorectal cancer remains a major cause of cancer death and morbidity worldwide. Surgery is a major treatment modality for primary and, increasingly, secondary curative therapy. However, with more patients being diagnosed with early stage and premalignant disease manifesting as large polyps, greater accuracy in diagnostic and therapeutic precision is needed right from the time of first endoscopic encounter. Rapid advancements in the field of artificial intelligence (AI), coupled with widespread availability of near infrared imaging (currently based around indocyanine green (ICG)) can enable colonoscopic tissue classification and prognostic stratification for significant polyps, in a similar manner to contemporary dynamic radiological perfusion imaging but with the advantage of being able to do so directly within interventional procedural time frames. It can provide an explainable method for immediate digital biopsies that could guide or even replace traditional forceps biopsies and provide guidance re margins (both areas where current practice is only approximately 80% accurate prior to definitive excision). Here, we discuss the concept and practice of AI enhanced ICG perfusion analysis for rectal cancer surgery while highlighting recent and essential near-future advancements. These include breakthrough developments in computer vision and time series analysis that allow for real-time quantification and classification of fluorescent perfusion signals of rectal cancer tissue intraoperatively that accurately distinguish between normal, benign, and malignant tissues in situ endoscopically, which are now undergoing international prospective validation (the Horizon Europe CLASSICA study). Next stage advancements may include detailed digital characterisation of small rectal malignancy based on intraoperative assessment of specific intratumoral fluorescent signal pattern. This could include T staging and intratumoral molecular process profiling (e.g. regarding angiogenesis, differentiation, inflammatory component, and tumour to stroma ratio) with the potential to accurately predict the microscopic local response to nonsurgical treatment enabling personalised therapy via decision support tools. Such advancements are also applicable to the next generation fluorophores and imaging agents currently emerging from clinical trials. In addition, by providing an understandable, applicable method for detailed tissue characterisation visually, such technology paves the way for acceptance of other AI methodology during surgery including, potentially, deep learning methods based on whole screen/video detailing.
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Affiliation(s)
- Patrick A Boland
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland
- Department of Colorectal Surgery, Mater Misericordiae University Hospital, Dublin, Ireland
| | - N P Hardy
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland
- Department of Colorectal Surgery, Mater Misericordiae University Hospital, Dublin, Ireland
| | - A Moynihan
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland
- Department of Colorectal Surgery, Mater Misericordiae University Hospital, Dublin, Ireland
| | - P D McEntee
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland
- Department of Colorectal Surgery, Mater Misericordiae University Hospital, Dublin, Ireland
| | - C Loo
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland
| | - H Fenlon
- Department of Radiology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - R A Cahill
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, 47 Eccles Street, Dublin 7, Dublin, Ireland.
- Department of Colorectal Surgery, Mater Misericordiae University Hospital, Dublin, Ireland.
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Khalafi S, Botero Fonnegra C, Reyes A, Hui VW. Developments in the Use of Indocyanine Green (ICG) Fluorescence in Colorectal Surgery. J Clin Med 2024; 13:4003. [PMID: 39064041 PMCID: PMC11276973 DOI: 10.3390/jcm13144003] [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: 05/20/2024] [Revised: 06/28/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Indocyanine Green (ICG) has significantly advanced minimally invasive surgery. It is widely recognized for its ability to visualize blood vessel patency in real-time across various surgical specialties. While its primary use in colorectal surgery is to evaluate anastomoses for leaks, numerous other applications have been documented in the literature. In this review, we aim to explore both established and emerging applications of ICG fluorescence in colorectal surgery, with the goal of improving patient outcomes. This includes preoperative tumor marking and the detection of metastatic disease. Some applications, such as lymphatic mapping, require further research to determine their impact on clinical practices. Conversely, others, like the intraoperative localizations of ureters, necessitate additional procedures and are not yet widely accepted by the surgical community. However, the development of alternative compounds could offer better solutions. Future research should focus on areas like quantitative ICG and protocol standardization in prospective multicenter studies.
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Skinner GC, Liu YZ, Harzman AE, Husain SG, Gasior AC, Cunningham LA, Traugott AL, McCulloh CJ, Kalady MF, Kim PC, Huang ES. Clinical Utility of Laser Speckle Contrast Imaging and Real-Time Quantification of Bowel Perfusion in Minimally Invasive Left-Sided Colorectal Resections. Dis Colon Rectum 2024; 67:850-859. [PMID: 38408871 DOI: 10.1097/dcr.0000000000003098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
BACKGROUND Left-sided colorectal surgery demonstrates high anastomotic leak rates, with tissue ischemia thought to influence outcomes. Indocyanine green is commonly used for perfusion assessment, but evidence remains mixed for whether it reduces colorectal anastomotic leaks. Laser speckle contrast imaging provides dye-free perfusion assessment in real-time through perfusion heat maps and quantification. OBJECTIVE This study investigates the efficacy of advanced visualization (indocyanine green versus laser speckle contrast imaging), perfusion assessment, and utility of laser speckle perfusion quantification in determining ischemic margins. DESIGN Prospective intervention group using advanced visualization with case-matched, retrospective control group. SETTINGS Single academic medical center. PATIENTS Forty adult patients undergoing elective, minimally invasive, left-sided colorectal surgery. INTERVENTIONS Intraoperative perfusion assessment using white light imaging and advanced visualization at 3 time points: T1-proximal colon after devascularization, before transection, T2-proximal/distal colon before anastomosis, and T3-completed anastomosis. MAIN OUTCOME MEASURES Intraoperative indication of ischemic line of demarcation before resection under each visualization method, surgical decision change using advanced visualization, post hoc laser speckle perfusion quantification of colorectal tissue, and 30-day postoperative outcomes. RESULTS Advanced visualization changed surgical decision-making in 17.5% of cases. For cases in which surgeons changed a decision, the average discordance between the line of demarcation in white light imaging and advanced visualization was 3.7 cm, compared to 0.41 cm ( p = 0.01) for cases without decision changes. There was no statistical difference between the line of ischemic demarcation using laser speckle versus indocyanine green ( p = 0.16). Laser speckle quantified lower perfusion values for tissues beyond the line of ischemic demarcation while suggesting an additional 1 cm of perfused tissue beyond this line. One (2.5%) anastomotic leak occurred in the intervention group. LIMITATIONS This study was not powered to detect differences in anastomotic leak rates. CONCLUSIONS Advanced visualization using laser speckle and indocyanine green provides valuable perfusion information that impacts surgical decision-making in minimally invasive left-sided colorectal surgeries. See Video Abstract . UTILIDAD CLNICA DE LAS IMGENES DE CONTRASTE MOTEADO CON LSER Y LA CUANTIFICACIN EN TIEMPO REAL DE LA PERFUSIN INTESTINAL EN RESECCIONES COLORRECTALES DEL LADO IZQUIERDO MNIMAMENTE INVASIVAS ANTECEDENTES:La cirugía colorrectal del lado izquierdo demuestra altas tasas de fuga anastomótica, y se cree que la isquemia tisular influye en los resultados. El verde de indocianina se utiliza habitualmente para evaluar la perfusión, pero la evidencia sobre si reduce las fugas anastomóticas colorrectales sigue siendo contradictoria. Las imágenes de contraste moteado con láser proporcionan una evaluación de la perfusión sin colorantes en tiempo real a través de mapas de calor de perfusión y cuantificación.OBJETIVO:Este estudio investiga la eficacia de la evaluación de la perfusión mediante visualización avanzada (verde de indocianina versus imágenes de contraste moteado con láser) y la utilidad de la cuantificación de la perfusión con moteado láser para determinar los márgenes isquémicos.DISEÑO:Grupo de intervención prospectivo que utiliza visualización avanzada con un grupo de control retrospectivo de casos emparejados.LUGARES:Centro médico académico único.PACIENTES:Cuarenta pacientes adultos sometidos a cirugía colorrectal electiva, mínimamente invasiva, del lado izquierdo.INTERVENCIONES:Evaluación de la perfusión intraoperatoria mediante imágenes con luz blanca y visualización avanzada en tres puntos temporales: T1-colon proximal después de la devascularización, antes de la transección; T2-colon proximal/distal antes de la anastomosis; y T3-anastomosis completa.PRINCIPALES MEDIDAS DE VALORACIÓN:Indicación intraoperatoria de la línea de demarcación isquémica antes de la resección bajo cada método de visualización, cambio de decisión quirúrgica mediante visualización avanzada, cuantificación post-hoc de la perfusión con láser moteado del tejido colorrectal y resultados posoperatorios a los 30 días.RESULTADOS:La visualización avanzada cambió la toma de decisiones quirúrgicas en el 17,5% de los casos. Para los casos en los que los cirujanos cambiaron una decisión, la discordancia promedio entre la línea de demarcación en las imágenes con luz blanca y la visualización avanzada fue de 3,7 cm, en comparación con 0,41 cm (p = 0,01) para los casos sin cambios de decisión. No hubo diferencias estadísticas entre la línea de demarcación isquémica utilizando láser moteado versus verde de indocianina (p = 0,16). El moteado con láser cuantificó valores de perfusión más bajos para los tejidos más allá de la línea de demarcación isquémica y al mismo tiempo sugirió 1 cm adicional de tejido perfundido más allá de esta línea. Se produjo una fuga anastomótica (2,5%) en el grupo de intervención.LIMITACIONES:Este estudio no tuvo el poder estadístico suficiente para detectar diferencias en las tasas de fuga anastomótica.CONCLUSIONES:La visualización avanzada utilizando moteado láser y verde de indocianina proporciona información valiosa sobre la perfusión que impacta la toma de decisiones quirúrgicas en cirugías colorrectales mínimamente invasivas del lado izquierdo. (Traducción-Dr. Ingrid Melo).
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Affiliation(s)
- Garrett C Skinner
- Department of Surgery, Jacobs School of Medicine and Biochemical Sciences, University at Buffalo, Buffalo, New York
- Activ Surgical, Boston, Massachusetts
| | - Yao Z Liu
- Activ Surgical, Boston, Massachusetts
- Department of Surgery, The Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Alan E Harzman
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | - Syed G Husain
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | - Alessandra C Gasior
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | - Lisa A Cunningham
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | - Amber L Traugott
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | | | - Matthew F Kalady
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
| | - Peter C Kim
- Activ Surgical, Boston, Massachusetts
- Department of Surgery, The Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Emily S Huang
- Division of Colorectal Surgery, Department of Surgery, The Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, Ohio
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Piccolo G, Barabino M, Ghilardi G, Masserano R, Lecchi F, Piozzi GN, Bianchi PP. Detection and Real-Time Surgical Assessment of Colorectal Liver Metastases Using Near-Infrared Fluorescence Imaging during Laparoscopic and Robotic-Assisted Resections. Cancers (Basel) 2024; 16:1641. [PMID: 38730593 PMCID: PMC11083015 DOI: 10.3390/cancers16091641] [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: 03/28/2024] [Revised: 04/19/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND The European Association of Endoscopic Surgery (EAES) recommends, with strong evidence, the use of indocyanine green (ICG) fluorescence imaging combined with intraoperative ultrasound (IOUS) to improve identification of superficial liver tumors. This study reports the use of ICG for the detection of colorectal liver metastases (CRLMs) during minimally invasive liver resection. METHODS A single-center consecutive series of minimally invasive (laparoscopic and robotic) hepatic resections for CRLMs was prospectively evaluated (April 2019 and October 2023). RESULTS A total of 25 patients were enrolled-11 undergoing laparoscopic and 14 undergoing robotic procedures. The median age was 65 (range 50-85) years. Fifty CRLMs were detected: twenty superficial, eight exophytic, seven shallow (<8 mm from the hepatic surface), and fifteen deep (>10 mm from the hepatic surface) lesions. The detection rates of CRLMs through preoperative imaging, laparoscopic ultrasound (LUS), ICG fluorescence, and combined modalities (ICG and LUS) were 88%, 90%, 68%, and 100%, respectively. ICG fluorescence staining allowed us to detect five small additional superficial lesions (not identified with other preoperative/intraoperative techniques). However, two lesions were false positive fluorescence accumulations. All rim fluorescence pattern lesions were CRLMs. ICG fluorescence was used as a real-time guide to assess surgical margins during parenchymal-sparing liver resections. All patients with integrity of the fluorescent rim around the CRLM displayed a radical resection during histopathological analysis. Four patients (8%) with a protruding rim or residual rim patterns had positive resection margins. CONCLUSIONS ICG fluorescence imaging can be integrated with other conventional intraoperative imaging techniques to optimize intraoperative staging. Rim fluorescence proved to be a valid indicator of the resection margins: by removing the entire fluorescent area, a tumor-negative resection (R0) is achieved.
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Affiliation(s)
- Gaetano Piccolo
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
| | - Matteo Barabino
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
| | - Giorgio Ghilardi
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
| | - Riccardo Masserano
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
| | - Francesca Lecchi
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
| | - Guglielmo Niccolò Piozzi
- Department of Colorectal Surgery, Portsmouth Hospitals University NHS Trust, Portsmouth PO6 3LY, UK;
| | - Paolo Pietro Bianchi
- General Surgery Unit, Department of Health Sciences (DISS), San Paolo Hospital, University of Milan, 20142 Milano, Italy; (G.P.); (G.G.); (R.M.); (F.L.); (P.P.B.)
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Bass GA, Kaplan LJ, Gaarder C, Coimbra R, Klingensmith NJ, Kurihara H, Zago M, Cioffi SPB, Mohseni S, Sugrue M, Tolonen M, Valcarcel CR, Tilsed J, Hildebrand F, Marzi I. European society for trauma and emergency surgery member-identified research priorities in emergency surgery: a roadmap for future clinical research opportunities. Eur J Trauma Emerg Surg 2024; 50:367-382. [PMID: 38411700 PMCID: PMC11035411 DOI: 10.1007/s00068-023-02441-3] [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: 10/17/2023] [Accepted: 12/28/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND European Society for Trauma and Emergency Surgery (ESTES) is the European community of clinicians providing care to the injured and critically ill surgical patient. ESTES has several interlinked missions - (1) the promotion of optimal emergency surgical care through networked advocacy, (2) promulgation of relevant clinical cognitive and technical skills, and (3) the advancement of scientific inquiry that closes knowledge gaps, iteratively improves upon surgical and perioperative practice, and guides decision-making rooted in scientific evidence. Faced with multitudinous opportunities for clinical research, ESTES undertook an exercise to determine member priorities for surgical research in the short-to-medium term; these research priorities were presented to a panel of experts to inform a 'road map' narrative review which anchored these research priorities in the contemporary surgical literature. METHODS Individual ESTES members in active emergency surgery practice were polled as a representative sample of end-users and were asked to rank potential areas of future research according to their personal perceptions of priority. Using the modified eDelphi method, an invited panel of ESTES-associated experts in academic emergency surgery then crafted a narrative review highlighting potential research priorities for the Society. RESULTS Seventy-two responding ESTES members from 23 countries provided feedback to guide the modified eDelphi expert consensus narrative review. Experts then crafted evidence-based mini-reviews highlighting knowledge gaps and areas of interest for future clinical research in emergency surgery: timing of surgery, inter-hospital transfer, diagnostic imaging in emergency surgery, the role of minimally-invasive surgical techniques and Enhanced Recovery After Surgery (ERAS) protocols, patient-reported outcome measures, risk-stratification methods, disparities in access to care, geriatric outcomes, data registry and snapshot audit evaluations, emerging technologies interrogation, and the delivery and benchmarking of emergency surgical training. CONCLUSIONS This manuscript presents the priorities for future clinical research in academic emergency surgery as determined by a sample of the membership of ESTES. While the precise basis for prioritization was not evident, it may be anchored in disease prevalence, controversy around aspects of current patient care, or indeed the identification of a knowledge gap. These expert-crafted evidence-based mini-reviews provide useful insights that may guide the direction of future academic emergency surgery research efforts.
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Affiliation(s)
- Gary Alan Bass
- Division of Traumatology, Emergency Surgery and Surgical Critical Care, Perelman School of Medicine, University of Pennsylvania, 51 N. 39th Street, MOB 1, Suite 120, Philadelphia, PA, 19104, USA.
- Leonard Davis Institute of Health Economics (LDI), University of Pennsylvania, Philadelphia, PA, USA.
- Center for Perioperative Outcomes Research and Transformation (CPORT), University of Pennsylvania, Philadelphia, PA, USA.
| | - Lewis Jay Kaplan
- Division of Traumatology, Emergency Surgery and Surgical Critical Care, Perelman School of Medicine, University of Pennsylvania, 51 N. 39th Street, MOB 1, Suite 120, Philadelphia, PA, 19104, USA
- Surgical Critical Care, Corporal Michael J Crescenz VA Medical Center, 3900 Woodland Avenue, Philadelphia, PA, 19104, USA
| | - Christine Gaarder
- Department of Traumatology at Oslo University Hospital Ullevål (OUH U), Olso, Norway
| | - Raul Coimbra
- Riverside University Health System Medical Center, Moreno Valley, CA, USA
- Loma Linda University School of Medicine, Loma Linda, CA, USA
- Comparative Effectiveness and Clinical Outcomes Research Center - CECORC, Moreno Valley, CA, USA
| | - Nathan John Klingensmith
- Division of Traumatology, Emergency Surgery and Surgical Critical Care, Perelman School of Medicine, University of Pennsylvania, 51 N. 39th Street, MOB 1, Suite 120, Philadelphia, PA, 19104, USA
| | - Hayato Kurihara
- State University of Milan, Milan, Italy
- Emergency Surgery Unit, Ospedale Policlinico di Milano, Milan, Italy
| | - Mauro Zago
- General & Emergency Surgery Division, A. Manzoni Hospital, ASST, Lecco, Lombardy, Italy
| | | | - Shahin Mohseni
- Department of Surgery, Sheikh Shakhbout Medical City (SSMC), Abu Dhabi, United Arab Emirates
- Division of Trauma and Emergency Surgery, Department of Surgery, Orebro University Hospital, 701 85, Orebro, Sweden
- Faculty of School of Medical Sciences, Orebro University, 702 81, Orebro, Sweden
| | - Michael Sugrue
- Letterkenny Hospital and Galway University, Letterkenny, Ireland
| | - Matti Tolonen
- Emergency Surgery, Meilahti Tower Hospital, HUS Helsinki University Hospital, Haartmaninkatu 4, PO Box 340, 00029, Helsinki, HUS, Finland
| | | | - Jonathan Tilsed
- Hull Royal Infirmary, Anlaby Road, Hu3 2Jz, Hull, England, UK
| | - Frank Hildebrand
- Department of Orthopaedics Trauma and Reconstructive Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Frankfurt, Germany.
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Khalaf MH, Abdelrahman H, El-Menyar A, Afifi I, Kloub A, Al-Hassani A, Rizoli S, Al-Thani H. Utility of indocyanine green fluorescent dye in emergency general surgery: a review of the contemporary literature. Front Surg 2024; 11:1345831. [PMID: 38419940 PMCID: PMC10899482 DOI: 10.3389/fsurg.2024.1345831] [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: 11/28/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
For decades, indocyanine green (ICG) has been available for medical and surgical use. The indications for ICG use in surgery have expanded where guided surgery directed by fluorescence and near-infrared fluorescent imaging offers numerous advantages. Recently, surgeons have reported using ICG operative navigation in the emergency setting, with fluorescent cholangiography being the most common procedure. The utility of ICG also involves real-time perfusion assessment, such as ischemic organs and limbs. The rising use of ICG in surgery can be explained by the ICG's rapid technological evolution, accuracy, ease of use, and great potential to guide precision surgical diagnosis and management. The review aims to summarize the current literature on the uses of ICG in emergency general surgery. It provides a comprehensive and practical summary of the use of ICG, including indication, route of administration, and dosages. To simplify the application of ICG, we subdivided its use into anatomical mapping and perfusion assessment. Anatomical mapping includes the biliary tree, ureters, and bowel. Perfusion assessment includes bowel, pancreas, skin and soft tissue, and gonads. This review provides a reference to emergency general surgeons to aid in implementing ICG in the emergency setting for more enhanced and safer patient care.
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Affiliation(s)
| | - Husham Abdelrahman
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Ayman El-Menyar
- Clinical Research, Trauma & Vascular Surgery Section, Hamad Medical Corporation, Doha, Qatar
- Department of Clinical Medicine, Weill Cornell Medicine, Doha, Qatar
| | - Ibrahim Afifi
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Ahmad Kloub
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Ammar Al-Hassani
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Sandro Rizoli
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Hassan Al-Thani
- Department of Surgery, Trauma Surgery, Hamad Medical Corporation, Doha, Qatar
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7
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Pata F, Tutino R, Picciariello A, Cantarella F. Editorial: Colorectal surgery and proctology: past, present, and future. Front Surg 2024; 11:1373867. [PMID: 38371881 PMCID: PMC10870640 DOI: 10.3389/fsurg.2024.1373867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/20/2024] Open
Affiliation(s)
- Francesco Pata
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
- Department of Surgery, AO Annunziata, Cosenza, Italy
| | - Roberta Tutino
- Department of General and Emergency Surgery, AOU Città Della Salute e Della Scienza di Torino, Turin, Italy
| | | | - Francesco Cantarella
- CPEP (Centre for Proctology and Perineology), Ospedali Privati Forlì, Forlì, Italy
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8
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Shevchenko I, Serban D, Dascalu AM, Tribus L, Alius C, Cristea BM, Suceveanu AI, Voiculescu D, Dumitrescu D, Bobirca F, Suceveanu AP, Georgescu DE, Serboiu CS. Factors Affecting the Efficiency of Near-Infrared Indocyanine Green (NIR/ICG) in Lymphatic Mapping for Colorectal Cancer: A Systematic Review. Cureus 2024; 16:e55290. [PMID: 38558607 PMCID: PMC10981778 DOI: 10.7759/cureus.55290] [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] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
As laparoscopy gained global popularity in oncologic surgery, the challenge of detecting lymph nodes spurred researchers to explore innovative techniques and approach the situation from a fresh perspective. While many proposed methods have faded into obscurity, the utilization of indocyanine green (ICG) in the surgical treatment of oncologic patients has continued to advance. The immense potential of this dye is widely acknowledged, yet its full extent and limitations in lymphatic mapping for colorectal cancer remain to be precisely determined. This article aims to assess the magnitude of its potential and explore the constraints based on insights from clinical studies published by pioneering researchers. A systematic review of the existing literature, comprising articles in English, was conducted using the Scopus, PubMed, and Springer Link databases. The search employed keywords such as "colorectal cancer" AND/OR "indocyanine green," "fluorescence" AND/OR "lymphatic mapping" AND/OR "lymph nodes." Initially identifying 129 articles, the application of selection criteria narrowed down the pool to 10 articles, which served as the primary sources of data for our review. Despite the absence of a standardized protocol for the application of ICG in colorectal cancer, particularly in the context of lymphatic mapping, the detection rates have exhibited considerable variation across studies. Nevertheless, all authors unanimously regarded this technique as beneficial and promising. Additionally, it is advocated as an adjunctive tool to enhance the accuracy of cancer staging. Near-infrared (NIR)-enhanced surgery holds the promise of transforming the landscape of oncologic surgery, emerging as a valuable tool for surgeons. However, the absence of a standardized technique and the subjective nature of result assessment impose limitations on the potential of this method. Consequently, it can be inferred that the establishment of a universally accepted protocol, encompassing parameters such as dose, concentration, technique, and site of administration of ICG, along with the optimal time needed for fluorescence visualization, would enhance the outcomes. Emphasizing the accurate selection of patients is crucial to prevent the occurrence of false-negative results.
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Affiliation(s)
- Irina Shevchenko
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Emergency University Hospital Bucharest, Bucharest, ROU
| | - Dragos Serban
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Emergency University Hospital Bucharest, Bucharest, ROU
| | - Ana Maria Dascalu
- Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Laura Tribus
- Gastroenterology, Faculty of Oral Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Catalin Alius
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Emergency University Hospital Bucharest, Bucharest, ROU
| | - Bogdan Mihai Cristea
- Anatomy, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Andra Iulia Suceveanu
- Gastroenterology, Faculty of Medicine, Ovidius University of Constanta, Constanta, ROU
- Gastroenterology, Clinical Emergency Hospital St Apostle Andrew, Constanta, ROU
| | - Daniel Voiculescu
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Emergency University Hospital Bucharest, Bucharest, ROU
| | - Dan Dumitrescu
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Emergency University Hospital Bucharest, Bucharest, ROU
| | - Florin Bobirca
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
- General Surgery, Clinic Hospital "Dr. Ioan Cantacuzino" Bucharest, Bucharest, ROU
| | - Adrian Paul Suceveanu
- Medicine, Faculty of Medicine, Ovidius University of Constanta, Constanta, ROU
- Gastroenterology, Clinical Emergency Hospital St Apostle Andrew, Constanta, ROU
| | - Dragos Eugen Georgescu
- Surgery, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
| | - Crenguta Sorina Serboiu
- Radiology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU
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Othman B, Pham T, Mohan H, Rajkomar A, Heriot AG, Smart P, Warrier S. Use of ureteric catheters and indocyanine green in complex pelvic surgery: a must or a luxury in 2023? ANZ J Surg 2023; 93:2287-2288. [PMID: 37431068 DOI: 10.1111/ans.18603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Affiliation(s)
- Bushra Othman
- General Surgery and Gastroenterology Clinical Institute, Epworth Healthcare, Melbourne, Victoria, Australia
- Department of Medicine Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Toan Pham
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
- Department of Colorectal Surgery, Northern Hospital, Epping, Victoria, Australia
- Department of General Surgery, Werribee Mercy Hospital, Werribee, Victoria, Australia
| | - Helen Mohan
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
- Department of General Surgery, Austin Health, Melbourne, Victoria, Australia
| | - Amrish Rajkomar
- General Surgery and Gastroenterology Clinical Institute, Epworth Healthcare, Melbourne, Victoria, Australia
| | - Alexander G Heriot
- General Surgery and Gastroenterology Clinical Institute, Epworth Healthcare, Melbourne, Victoria, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Philip Smart
- Department of General Surgery, Austin Health, Melbourne, Victoria, Australia
| | - Satish Warrier
- General Surgery and Gastroenterology Clinical Institute, Epworth Healthcare, Melbourne, Victoria, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
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Lim ZY, Mohan S, Balasubramaniam S, Ahmed S, Siew CCH, Shelat VG. Indocyanine green dye and its application in gastrointestinal surgery: The future is bright green. World J Gastrointest Surg 2023; 15:1841-1857. [PMID: 37901741 PMCID: PMC10600780 DOI: 10.4240/wjgs.v15.i9.1841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 09/21/2023] Open
Abstract
Indocyanine green (ICG) is a water-soluble fluorescent dye that is minimally toxic and widely used in gastrointestinal surgery. ICG facilitates anatomical identification of structures (e.g., ureters), assessment of lymph nodes, biliary mapping, organ perfusion and anastomosis assessment, and aids in determining the adequacy of oncological margins. In addition, ICG can be conjugated to artificially created antibodies for tumour markers, such as carcinoembryonic antigen for colorectal, breast, lung, and gastric cancer, prostate-specific antigen for prostate cancer, and cancer antigen 125 for ovarian cancer. Although ICG has shown promising results, the optimization of patient factors, dye factors, equipment, and the method of assessing fluorescence intensity could further enhance its utility. This review summarizes the clinical application of ICG in gastrointestinal surgery and discusses the emergence of novel dyes such as ZW-800 and VM678 that have demonstrated appropriate pharmacokinetic properties and improved target-to-background ratios in animal studies. With the emergence of robotic technology and the increasing reporting of ICG utility, a comprehensive review of clinical application of ICG in gastrointestinal surgery is timely and this review serves that aim.
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Affiliation(s)
- Zavier Yongxuan Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Swetha Mohan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | | | - Saleem Ahmed
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore
| | | | - Vishal G Shelat
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore
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Fransvea P, Fico V, Puccioni C, D'Agostino L, Costa G, Biondi A, Brisinda G, Sganga G. Application of fluorescence-guided surgery in the acute care setting: a systematic literature review. Langenbecks Arch Surg 2023; 408:375. [PMID: 37743419 DOI: 10.1007/s00423-023-03109-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 09/14/2023] [Indexed: 09/26/2023]
Abstract
PURPOSE Fluorescence-based imaging has found application in several fields of elective surgery, but there is still a lack of evidence in the literature about its use in emergency setting. The present review critically summarizes currently available applications and limitations of indocyanine green (ICG) fluorescence in abdominal emergencies including acute cholecystitis, mesenteric ischemia, and trauma surgery. METHODS A systematic review was performed according to the PRISMA statement identifying articles about the use of ICG fluorescence in the management of the most common general surgery emergency. Only studies focusing on the use of ICG fluorescence for the management of acute surgical conditions in adults were included. RESULTS Thirty-six articles were considered for qualitative analysis. The most frequent disease was occlusive or non-occlusive mesenteric ischemia followed by acute cholecystitis. Benefits from using ICG for acute cholecystitis were reported in 48% of cases (clear identification of biliary structures and a safer surgical procedure). In one hundred and twenty cases that concerned the use of ICG for occlusive or non-occlusive mesenteric ischemia, ICG injection led to a modification of the surgical decision in 44 patients (36.6%). Three studies evaluated the use of ICG in trauma patients to assess the viability of bowel or parenchymatous organs in abdominal trauma, to evaluate the perfusion-related tissue impairment in extremity or craniofacial trauma, and to reassess the efficacy of surgical procedures performed in terms of vascularization. ICG injection led to a modification of the surgical decision in 50 patients (23.9%). CONCLUSION ICG fluorescence is a safe and feasible tool also in an emergency setting. There is increasing evidence that the use of ICG fluorescence during abdominal surgery could facilitate intra-operative decision-making and improve patient outcomes, even in the field of emergency surgery.
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Affiliation(s)
- Pietro Fransvea
- UOC Chirurgia d'Urgenza E del Trauma, Fondazione Policlinico Universitario A Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy.
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
| | - Valeria Fico
- UOC Chirurgia d'Urgenza E del Trauma, Fondazione Policlinico Universitario A Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
| | - Caterina Puccioni
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Luca D'Agostino
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Gianluca Costa
- Colorectal Surgery Clinical and Research Unit Surgery Center, Fondazione Policlinico Universitario Campus Bio-Medico, University Campus Bio-Medico of Rome, Rome, Italy
| | - Alberto Biondi
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- General Surgery Unit, Fondazione Policlinico Universitario A Gemelli IRCCS, 00168, Rome, Italy
| | - Giuseppe Brisinda
- UOC Chirurgia d'Urgenza E del Trauma, Fondazione Policlinico Universitario A Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Gabriele Sganga
- UOC Chirurgia d'Urgenza E del Trauma, Fondazione Policlinico Universitario A Gemelli IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
- Department of Medical and Surgical Sciences, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
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12
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Sandor Z, Ujfalusi Z, Varga A. Application of a Self-developed, Low-budget Indocyanine Green Camera in Surgical Imaging - a Single Institution's Experiences. J Fluoresc 2023; 33:2099-2103. [PMID: 36988781 PMCID: PMC10539407 DOI: 10.1007/s10895-023-03224-0] [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: 01/27/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
INTRODUCTION Indocyanine green is a fluorescent dye, the use of which is becoming more and more widespread in different areas of surgery. Several international studies deal with the dye's usefulness in intraoperative angiography, the localization of tumors, the more precise identification of anatomical structures, the detection of lymph nodes and lymph ducts, etc. The application of the dye is safe, but a suitable equipment park is required for its use, which entails relatively high costs. OBJECTIVES The aim of our research is to create a detector system on a low budget, to be used safely in everyday practice and to illustrate its operation with practical examples at our own institute. METHODS By modifying a web camera, using filter lenses and special LEDs, we created a device suitable for exciting and detecting indocyanine green fluorescence. We prove its excellent versatility during the following procedures at our institute: breast tumor surgery, kidney transplantation, bowel resection, parathyroid surgery and liver tumor resection. RESULTS The finished camera has an LED light source with a peak wavelength of 780 nm, and the incoming light is filtered by a bandpass filter with a center wavelength of 832 nm. A low budget ($112), easy-to-use tool was created, which is suitable for taking advantage of the opportunities provided by indocyanine green.
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Affiliation(s)
- Zoltan Sandor
- Department of Surgery, University of Pécs, Pécs, Hungary
| | | | - Adam Varga
- Department of Surgery, University of Pécs, Pécs, Hungary.
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Simion L, Ionescu S, Chitoran E, Rotaru V, Cirimbei C, Madge OL, Nicolescu AC, Tanase B, Dicu-Andreescu IG, Dinu DM, Luca DC, Stanculeanu DL, Gheorghe AS, Zob D, Marincas M. Indocyanine Green (ICG) and Colorectal Surgery: A Literature Review on Qualitative and Quantitative Methods of Usage. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1530. [PMID: 37763651 PMCID: PMC10536016 DOI: 10.3390/medicina59091530] [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: 06/21/2023] [Revised: 08/02/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023]
Abstract
Background: Due to its many benefits, indocyanine green (ICG) has gained progressive popularity in operating rooms (ORs) globally. This literature review examines its qualitative and quantitative usage in surgical treatment. Method: Relevant terms were searched in five international databases (1. Pubmed, 2. Sciencedirect, 3. Scopus, 4. Oxfordjournals, 5. Reaxys) for a comprehensive literature review. The main benefits of using ICG in colorectal surgery are: intraoperative fluorescence angiography; fluorescence-guided lymph node involvement detection and the sentinel technique; the fluorescent emphasis of a minute liver tumour, counting just 200 tumour cells; facilitation of fistula diagnosis; and tumour tattooing. This methodology can also be used with quantitative characteristics such as maximum intensity, relative maximum intensity, and in-flow parameters such as time-to-peak, slope, and t1/2max. This article concludes that fluorescence surgery with ICG and near-infrared (NIR) light is a relatively new technology that improves anatomical and functional information, allowing more comprehensive and safer tumour removal and the preservation of important structures.
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Affiliation(s)
- Laurentiu Simion
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Sinziana Ionescu
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Elena Chitoran
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Ph.D. Studies, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Vlad Rotaru
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Ph.D. Studies, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Ciprian Cirimbei
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Octavia-Luciana Madge
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- University of Bucharest, 030018 Bucharest, Romania
| | - Alin Codrut Nicolescu
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Ph.D. Studies, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Emergency Hospital “Prof. Dr. Agrippa Ionescu”, 011356 Bucharest, Romania
| | - Bogdan Tanase
- Clinic of Thoracic Surgery, Bucharest Oncology Institute, 022328 Bucharest, Romania
| | - Irinel-Gabriel Dicu-Andreescu
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Ph.D. Studies, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Denisa Mihaela Dinu
- Surgery Clinic, Bucharest Emergency University Hospital, 050098 Bucharest, Romania
| | - Dan Cristian Luca
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
| | - Dana Lucia Stanculeanu
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Oncology Clinic, “Prof. Dr. Al. Trestioreanu” Bucharest Oncology Institute, 022328 Bucharest, Romania
| | - Adelina Silvana Gheorghe
- Ph.D. Studies in Oncology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Daniela Zob
- Oncology Department, “Prof. Dr. Al. Trestioreanu” Bucharest Oncology Institute, 022328 Bucharest, Romania
| | - Marian Marincas
- Ist Clinic of General Surgery and Surgical Oncology, Bucharest Oncology Institute, 022328 Bucharest, Romania; (L.S.)
- “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
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Son GM, Nazir AM, Yun MS, Lee IY, Im SB, Kwak JY, Park SH, Baek KR, Gockel I. The Safe Values of Quantitative Perfusion Parameters of ICG Angiography Based on Tissue Oxygenation of Hyperspectral Imaging for Laparoscopic Colorectal Surgery: A Prospective Observational Study. Biomedicines 2023; 11:2029. [PMID: 37509667 PMCID: PMC10377371 DOI: 10.3390/biomedicines11072029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Safe values for quantitative perfusion parameters of indocyanine green (ICG) angiography have not been fully defined, and interpretation remains at the surgeon's discretion. This prospective observational study aimed to establish the safe values for the quantitative perfusion parameters by comparing tissue oxygenation levels from HSI images in laparoscopic colorectal surgery. METHODS ICG angiography was performed using a laparoscopic near-infrared (NIR) camera system with ICG diluted in 10 mL of distilled water. For quantitative perfusion parameters, the changes in fluorescence intensity with perfusion times were analyzed to plot a time-fluorescence intensity graph. To assess real-time tissue oxygen saturation (StO2) in the colon, the TIVITA® Tissue System was utilized for hyperspectral imaging (HSI) acquisition. The StO2 levels were compared with the quantitative perfusion parameters derived from ICG angiography at corresponding points to define the safe range of ICG parameters reflecting good tissue oxygenation. RESULTS In the regression analysis, T1/2MAX, TMAX, slope, and NIR perfusion index were correlated with tissue oxygen saturation. Using this regression model, the cutoff values of quantitative perfusion parameters were calculated as T1/2MAX ≤ 10 s, TMAX ≤ 30 s, slope ≥ 5, and NIR perfusion index ≥50, which best reflected colon StO2 higher than 60%. Diagnostic values were analyzed to predict colon StO2 of 60% or more, and the ICG perfusion parameters T1/2MAX, TMAX, and perfusion TR showed high sensitivity values of 97% or more, indicating their ability to correctly identify cases with acceptable StO2. CONCLUSION The safe values for quantitative perfusion parameters derived from ICG angiography were T1/2MAX ≤ 10 s and TMAX ≤ 30 s, which were associated with colon tissue oxygenation levels higher than 60% in the laparoscopic colorectal surgery.
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Affiliation(s)
- Gyung Mo Son
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (M.S.Y.); (I.Y.L.)
| | - Armaan M. Nazir
- School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, D02 YN77 Dublin, Ireland;
| | - Mi Sook Yun
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (M.S.Y.); (I.Y.L.)
| | - In Young Lee
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea; (M.S.Y.); (I.Y.L.)
| | - Sun Bin Im
- Department of Medicine, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea;
| | - Jae Yeong Kwak
- Department of Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea; (J.Y.K.); (S.-H.P.); (K.-R.B.)
| | - Sang-Ho Park
- Department of Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea; (J.Y.K.); (S.-H.P.); (K.-R.B.)
| | - Kwang-Ryul Baek
- Department of Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea; (J.Y.K.); (S.-H.P.); (K.-R.B.)
| | - Ines Gockel
- Department of Visceral, Transplantation, Thoracic and Vascular Surgery, University Hospital Leipzig, 04103 Leipzig, Germany;
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