Abstract
Background
Accurate tumor localization is essential for gastrointestinal surgery, especially in cases of early cancer. This study was designed to develop a novel fluorescent clip for rapid and exact visualization of tumor sites.
Methods
A transparent polymer matrix containing highly bright fluorochromes was coated on the front end of endoscopic clips. The fluorescent clips were placed on the mucosal surface of a porcine colon and stomach, and the operator then attempted to identify the fluorescent clips from the outer serosal side of the colon and stomach. A 532-nm diode laser and filter glass were used for visualizing the fluorescence signals through the colonic tissue. A 650-nm diode laser and a digital charge-coupled device (CCD) camera equipped with a bandpass emission filter were used for the imaging of the fluorescent clips through the thick stomach tissue.
Results
When a green light from a 532-nm diode laser (power density = 0.35 mW/cm2) was applied on the serosal surface of the porcine colon, we could identify all clips that had been placed endoscopically on the mucosal surface of the inner colonic wall. By using the light from a 650-nm diode laser (power density = 0.7 mW/cm2), we identified all fluorescent clips through the stomach wall in real time. Similar results were also obtained with the filtered xenon lamp.
Conclusion
An endoscopic fluorescent clip can be useful for the rapid and exact localization of tumors, and this technique can also be useful during laparoscopic surgery.
Similar content being viewed by others
References
Montorsi M, Opocher E, Santambrogio R, Bianchi P, Faranda C, Arcidiacono P, Passoni GR, Cosentino F (1999) Original technique for small colorectal tumor localization during laparoscopic surgery. Dis Colon Rectum 42:819–822
Park JW, Sohn DK, Hong CW, Han KS, Choi DH, Chang HJ, Lim SB, Choi HS, Jeong SY (2008) The usefulness of preoperative colonoscopic tattooing using a saline test injection method with prepackaged sterile India ink for localization in laparoscopic colorectal surgery. Surg Endosc 22:501–505
Cho YB, Lee WY, Yun HR, Lee WS, Yun SH, Chun HK (2007) Tumor localization for laparoscopic colorectal surgery. World J Surg 31:1491–1495
Beretvas RI, Ponsky J (2001) Endoscopic marking: an adjunct to laparoscopic gastrointestinal surgery. Surg Endosc 15:1202–1203
Park DJ, Lee HJ, Kim SG, Jung HC, Song IS, Lee KU, Choe KJ, Yang HK (2005) Intraoperative gastroscopy for gastric surgery. Surg Endosc 19:1358–1361
Price N, Gottfried MR, Clary E, Lawson DC, Baillie J, Mergener K, Westcott C, Eubanks S, Pappas TN (2000) Safety and efficacy of India ink and indocyanine green as colonic tattooing agents. Gastrointest Endosc 51:438–442
Weissleder R, Ntziachristos V (2003) Shedding light onto live molecular targets. Nat Med 9:123–128
Muller MG, Georgakoudi I, Zhang Q, Wu J, Feld MS (2001) Intrinsic fluorescence spectroscopy in turbid media: disentangling effects of scattering and absorption. Appl Opt 40:4633–4646
Ntziachristos V, Ripoll J, Wang LV, Weissleder R (2005) Looking and listening to light: the evolution of whole-body photonic imaging. Nat Biotechnol 23:313–320
Hyung WJ, Lim JS, Cheong JH, Kim J, Choi SH, Song SY, Noh SH (2005) Intraoperative tumor localization using laparoscopic ultrasonography in laparoscopic-assisted gastrectomy. Surg Endosc 19:1353–1357
Fu KI, Fujii T, Kato S, Sano Y, Koba I, Mera K, Saito H, Yoshino T, Sugito M, Yoshida S (2001) A new endoscopic tattooing technique for identifying the location of colonic lesions during laparoscopic surgery: a comparison with the conventional technique. Endoscopy 33:687–691
Sawaki A, Nakamura T, Suzuki T, Hara K, Kato T, Kato T, Hirai T, Kanemitsu Y, Okubo K, Tanaka K, Moriyama I, Kawai H, Katsurahara M, Matsumoto K, Yamao K (2003) A two-step method for marking polypectomy sites in the colon and rectum. Gastrointest Endosc 57:735–737
Askin MP, Waye JD, Fiedler L, Harpaz N (2002) Tattoo of colonic neoplasms in 113 patients with a new sterile carbon compound. Gastrointest Endosc 56:339–342
Zako T, Hyodo H, Tsuji K, Tokuzen K, Kishimoto H, Ito M, Kaneko K, Maeda M, Soga K (2010) Development of near infrared-fluorescent nanophosphors and applications for cancer diagnosis and therapy. J Nanomater. doi:10.1155/2010/491471
Magde D, Rojas GE, Seybold PG (1999) Solvent dependence of the fluorescence lifetimes of xanthene dyes. Photochem Photobiol 70:737–744
Vallittu PK, Ekstrand K (1999) In vitro cytotoxicity of fibre-polymethyl methacrylate composite used in dentures. J Oral Rehabil 26:666–671
Vallittu PK (1995) A review of methods used to reinforce polymethyl methacrylate resin. J Prosthodont 4:183–187
Acknowledgments
This study was supported by a grant from the National Cancer Center of Korea (NCC-1010060).
Disclosures
Drs. Y. D. Choi, K. G. Kim, J. K. Kim, K. W. Nam, H. H. Kim, and D. K. Sohn have no conflicts of interest or financial ties to disclose.
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Supplementary material 1 (AVI 9065 kb)
Rights and permissions
About this article
Cite this article
Choi, Y., Kim, K.G., Kim, J.K. et al. A novel endoscopic fluorescent clip for the localization of gastrointestinal tumors. Surg Endosc 25, 2372–2377 (2011). https://doi.org/10.1007/s00464-010-1557-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00464-010-1557-1