The Experts below are selected from a list of 129 Experts worldwide ranked by ideXlab platform

Huijuan Yang - One of the best experts on this subject based on the ideXlab platform.

Libing Xiang - One of the best experts on this subject based on the ideXlab platform.

Hendriks B.h.w. - One of the best experts on this subject based on the ideXlab platform.

  • Intraoperative tumor margin assessment using diffuse reflectance spectroscopy: The effect of electrosurgery on tissue discrimination using ex vivo animal tissue models
    'The Optical Society', 2020
    Co-Authors: Azizian Amiri S., Dankelman J., Van Gent, Carlijn M., Hendriks B.h.w.
    Abstract:

    Using an intraoperative margin assessment technique during breast-conserving surgery (BCS) helps surgeons to decrease the risk of positive margin occurrence. Diffuse reflectance spectroscopy (DRS) has the potential to discriminate healthy breast tissue from cancerous tissue. We investigated the performance of an Electrosurgical Knife integrated with a DRS on porcine muscle and adipose tissue. Characterization of the formed debris on the optical fibers after electrosurgery revealed that the contamination is mostly burned tissue. Even with contaminated optical fibers, both tissues could still be discriminated with DRS based on fat/water ratio. Therefore, an Electrosurgical Knife integrated with DRS may be a promising technology to provide the surgeon with real-time guidance during BCS.Medical Instruments & Bio-Inspired Technolog

  • Intraoperative tumor margin assessment using diffuse reflectance spectroscopy: The effect of electrosurgery on tissue discrimination using ex vivo animal tissue models
    'The Optical Society', 2020
    Co-Authors: Azizian Amiri S., Dankelman J., Van Gent, Carlijn M., Hendriks B.h.w.
    Abstract:

    Using an intraoperative margin assessment technique during breast-conserving surgery (BCS) helps surgeons to decrease the risk of positive margin occurrence. Diffuse reflectance spectroscopy (DRS) has the potential to discriminate healthy breast tissue from cancerous tissue. We investigated the performance of an Electrosurgical Knife integrated with a DRS on porcine muscle and adipose tissue. Characterization of the formed debris on the optical fibers after electrosurgery revealed that the contamination is mostly burned tissue. Even with contaminated optical fibers, both tissues could still be discriminated with DRS based on fat/water ratio. Therefore, an Electrosurgical Knife integrated with DRS may be a promising technology to provide the surgeon with real-time guidance during BCS.

  • Real-time oncological guidance using diffuse reflectance spectroscopy in electrosurgery: The effect of coagulation on tissue discrimination
    'SPIE-Intl Soc Optical Eng', 2018
    Co-Authors: Adank, Maartje W., Fleischer J.c., Dankelman J., Hendriks B.h.w.
    Abstract:

    In breast surgery, a lack of knowledge about what is below the tissue surface may lead to positive tumor margins and iatrogenic damage. Diffuse reflectance spectroscopy (DRS) is a spectroscopic technique that can distinguish between healthy and tumor tissue making it a suitable technology for intraoperative guidance. However, because tumor surgeries are often performed with an Electrosurgical Knife, the effect of a coagulated tissue layer on DRS measurements must be taken into account. It is evaluated whether real-time DRS measurements obtained with a photonic Electrosurgical Knife could provide useful information of tissue properties also when tissue is coagulated and cut. The size of the coagulated area is determined and the effect of its presence on DR spectra is studied using ex vivo porcine adipose and muscle tissue. A coagulated tissue layer with a depth of 0.1 to 0.4 mm is observed after coagulating muscle with an Electrosurgical Knife. The results show that the effect of coagulating adipose tissue is negligible. Using the fat/water ratio's calculated from the measured spectra of the photonic Electrosurgical Knife, it was possible to determine the distance from the instrument tip to a tissue transition during cutting. In conclusion, the photonic Electrosurgical Knife can determine tissue properties of coagulated and cut tissue and has, therefore, the potential to provide real-time feedback about the presence of breast tumor margins during cutting, helping surgeons to establish negative margins and improve patient outcome.

  • Real-time oncological guidance using diffuse reflectance spectroscopy in electrosurgery: The effect of coagulation on tissue discrimination
    'SPIE-Intl Soc Optical Eng', 2018
    Co-Authors: Adank, Maartje W., Fleischer J.c., Dankelman J., Hendriks B.h.w.
    Abstract:

    In breast surgery, a lack of knowledge about what is below the tissue surface may lead to positive tumor margins and iatrogenic damage. Diffuse reflectance spectroscopy (DRS) is a spectroscopic technique that can distinguish between healthy and tumor tissue making it a suitable technology for intraoperative guidance. However, because tumor surgeries are often performed with an Electrosurgical Knife, the effect of a coagulated tissue layer on DRS measurements must be taken into account. It is evaluated whether real-time DRS measurements obtained with a photonic Electrosurgical Knife could provide useful information of tissue properties also when tissue is coagulated and cut. The size of the coagulated area is determined and the effect of its presence on DR spectra is studied using ex vivo porcine adipose and muscle tissue. A coagulated tissue layer with a depth of 0.1 to 0.4 mm is observed after coagulating muscle with an Electrosurgical Knife. The results show that the effect of coagulating adipose tissue is negligible. Using the fat/water ratio's calculated from the measured spectra of the photonic Electrosurgical Knife, it was possible to determine the distance from the instrument tip to a tissue transition during cutting. In conclusion, the photonic Electrosurgical Knife can determine tissue properties of coagulated and cut tissue and has, therefore, the potential to provide real-time feedback about the presence of breast tumor margins during cutting, helping surgeons to establish negative margins and improve patient outcome.Medical Instruments & Bio-Inspired Technolog

Choi, Jeong Hwan - One of the best experts on this subject based on the ideXlab platform.

  • A Case of Corrosive Injury-Induced Pharyngeal Stricture Treated by Endoscopic Adhesiolysis Using an Electrosurgical Knife
    The Korean Society of Gastroenterology; the Korean Society of Gastrointestinal Endoscopy; the Korean Association for the Study of the Liver; the Korea, 2026
    Co-Authors: Kim Sun-young, Oh, Tae Hoon, Hwa Mi Kang, Jeon, Tae Joo, Seo, Dong Dae, Shin, Won Chang, Choi Won-choong, Choi, Jeong Hwan
    Abstract:

    Here, we report a case of corrosive injury-induced pharyngeal stricture in a 69-year-old female, which was successfully treated with endoscopic adhesiolysis using an Electrosurgical Knife. The patient had ingested sodium hydroxide in an attempted suicide, and immediate endoscopy revealed corrosive injuries of the pharynx, esophagus, and stomach. When a liquid diet was permitted, she complained of nasal regurgitation of food. Follow-up endoscopy revealed several adhesive bands and a web-like scar that did not allow passage of the endoscope into the hypopharyngeal area. For treatment of the hypopharyngeal stricture, the otolaryngologist attempted to perform an excision of the fibrous bands around the esophageal inlet using microscissors passed through an esophagoscope, but this procedure was not effective. We then dissected the mucosal adhesion and incised the adhesive bands using an Electrosurgical Knife. After this procedure, nasal regurgitation of food no longer occurred. To our knowledge, this case is the first report of endoscopic adhesiolysis with an Electrosurgical Knife in a patient with a corrosive injury-induced pharyngeal stricture

Huaying Wang - One of the best experts on this subject based on the ideXlab platform.