Novel Endoscope Simultaneously Images Visible and NIR Light
By HospiMedica International staff writers Posted on 04 Jan 2021 |
Image: Different concentrations of indocyanine green under NIR (a) visible light (b), and a fusion image (d) (Photo courtesy of Chenyoung Shi/ CAS)
A new endoscope inspired by the compound eyes of the mantis shrimp provides three dimensional (3D) visible and near-infrared (NIR) images simultaneously, according to a new study.
Developed at the Chinese Academy of Sciences (CAS; Shenyang, China), Tianjin University of Technology (China), and other institutions, the novel endoscope achieves coincident real-time imaging of 3D stereoscopic color and NIR fluorescence images. The device consists of a broadband binocular optical system, a multiband sensor, and an optical relay system that projects the two sub-images from the broadband binocular optical system onto the multiband sensor, which detects spectral and polarization responses along the electromagnetic spectrum.
The bio-inspired multimodal 3D endoscope can thus not only provide surgeons with real-time feedback, but also creates an immersive experience without impeding surgical workflow. The endoscope showed a resolution of seven line pairs/mm under visible light--matching that of current endoscopes--and four line pairs/mm under NIR. When tested on three concentrations of the fluorescent reagent indocyanine green dye (indistinguishable to the human eye), the multimodal endoscope easily distinguished among them. The study was published in the January 2021 issue of Optics Express.
“Existing fluorescence 3D endoscopes require surgeons to switch working modes during operation to see the fluorescence images,” said lead author Chenyoung Shi, PhD, of the Chinese Academy of Sciences. “Because our 3D endoscope can acquire visible and fluorescent 3D images simultaneously, it not only provides more visual information, but can also greatly shorten the operation time and reduce risks during surgery.”
Many insects have a pair of compound eyes, such as dragonflies, bees, fruit-flies, grasshoppers, and mantis shrimp, among others. The compound eye of these insects, which is a sophisticated imaging device that consists of a mosaic of tiny optical units called ommatidia, allows insects to see a different world from humans. For example, the compound eyes of bees can see ultraviolet (UV) light, making it easier to distinguish whether flowers are rich in nectar. The compound eyes of mantis shrimp can not only detect multispectral information, but also recognize polarized light.
Related Links:
Chinese Academy of Sciences
Tianjin University of Technology
Developed at the Chinese Academy of Sciences (CAS; Shenyang, China), Tianjin University of Technology (China), and other institutions, the novel endoscope achieves coincident real-time imaging of 3D stereoscopic color and NIR fluorescence images. The device consists of a broadband binocular optical system, a multiband sensor, and an optical relay system that projects the two sub-images from the broadband binocular optical system onto the multiband sensor, which detects spectral and polarization responses along the electromagnetic spectrum.
The bio-inspired multimodal 3D endoscope can thus not only provide surgeons with real-time feedback, but also creates an immersive experience without impeding surgical workflow. The endoscope showed a resolution of seven line pairs/mm under visible light--matching that of current endoscopes--and four line pairs/mm under NIR. When tested on three concentrations of the fluorescent reagent indocyanine green dye (indistinguishable to the human eye), the multimodal endoscope easily distinguished among them. The study was published in the January 2021 issue of Optics Express.
“Existing fluorescence 3D endoscopes require surgeons to switch working modes during operation to see the fluorescence images,” said lead author Chenyoung Shi, PhD, of the Chinese Academy of Sciences. “Because our 3D endoscope can acquire visible and fluorescent 3D images simultaneously, it not only provides more visual information, but can also greatly shorten the operation time and reduce risks during surgery.”
Many insects have a pair of compound eyes, such as dragonflies, bees, fruit-flies, grasshoppers, and mantis shrimp, among others. The compound eye of these insects, which is a sophisticated imaging device that consists of a mosaic of tiny optical units called ommatidia, allows insects to see a different world from humans. For example, the compound eyes of bees can see ultraviolet (UV) light, making it easier to distinguish whether flowers are rich in nectar. The compound eyes of mantis shrimp can not only detect multispectral information, but also recognize polarized light.
Related Links:
Chinese Academy of Sciences
Tianjin University of Technology
Latest Surgical Techniques News
- Miniaturized Implantable Multi-Sensors Device to Monitor Vessels Health
- Tiny Robots Made Out Of Carbon Could Conduct Colonoscopy, Pelvic Exam or Blood Test
- Miniaturized Ultrasonic Scalpel Enables Faster and Safer Robotic-Assisted Surgery
- AI Assisted Reading Tool for Small Bowel Video Capsule Endoscopy Detects More Lesions
- First-Ever Contact Force Pulsed Field Ablation System to Transform Treatment of Ventricular Arrhythmias
- Caterpillar Robot with Built-In Steering System Crawls Easily Through Loops and Bends
- Tiny Wraparound Electronic Implants to Revolutionize Treatment of Spinal Cord Injuries
- Small, Implantable Cardiac Pump to Help Children Awaiting Heart Transplant
- Gastrointestinal Imaging Capsule a Game-Changer in Esophagus Surveillance and Treatment
- World’s Smallest Laser Probe for Brain Procedures Facilitates Ablation of Full Range of Targets
- Artificial Intelligence Broadens Diagnostic Abilities of Conventional Coronary Angiography
- AI-Powered Surgical Visualization Tool Supports Surgeons' Visual Recognition in Real Time
- Cutting-Edge Robotic Bronchial Endoscopic System Provides Prompt Intervention during Emergencies
- Handheld Device for Fluorescence-Guided Surgery a Game Changer for Removal of High-Grade Glioma Brain Tumors
- Porous Gel Sponge Facilitates Rapid Hemostasis and Wound Healing
- Novel Rigid Endoscope System Enables Deep Tissue Imaging During Surgery