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- Title
Over 1000 nm Near-Infrared Multispectral Imaging System for Laparoscopic In Vivo Imaging.
- Authors
Takamatsu, Toshihiro; Kitagawa, Yuichi; Akimoto, Kohei; Iwanami, Ren; Endo, Yuto; Takashima, Kenji; Okubo, Kyohei; Umezawa, Masakazu; Kuwata, Takeshi; Sato, Daiki; Kadota, Tomohiro; Mitsui, Tomohiro; Ikematsu, Hiroaki; Yokota, Hideo; Soga, Kohei; Takemura, Hiroshi; Merla, Arcangelo
- Abstract
In this study, a laparoscopic imaging device and a light source able to select wavelengths by bandpass filters were developed to perform multispectral imaging (MSI) using over 1000 nm near-infrared (OTN-NIR) on regions under a laparoscope. Subsequently, MSI (wavelengths: 1000–1400 nm) was performed using the built device on nine live mice before and after tumor implantation. The normal and tumor pixels captured within the mice were used as teaching data sets, and the tumor-implanted mice data were classified using a neural network applied following a leave-one-out cross-validation procedure. The system provided a specificity of 89.5%, a sensitivity of 53.5%, and an accuracy of 87.8% for subcutaneous tumor discrimination. Aggregated true-positive (TP) pixels were confirmed in all tumor-implanted mice, which indicated that the laparoscopic OTN-NIR MSI could potentially be applied in vivo for classifying target lesions such as cancer in deep tissues.
- Subjects
MULTISPECTRAL imaging; IMAGING systems; BANDPASS filters; LIGHT sources; PIXELS
- Publication
Sensors (14248220), 2021, Vol 21, Issue 8, p2649
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s21082649