A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography
Background: Intraoperative indocyanine green videoangiography (ICG-VA) has been reported to be utilized in various cerebrovascular surgeries, wherein the blood flow is noticeably shown in white with a black background. ICG flow alone, but not other structures, can be observed using ICG-VA. We develo...
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2018-07-01
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doaj-ae36287c824e42a6922cc532d2199b052020-11-25T02:35:04ZengKarger PublishersCerebrovascular Diseases Extra1664-54562018-07-01829610010.1159/000490872490872A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green VideoangiographyTaku SatoMudathir BakhitKyouichi SuzukiJun SakumaMasazumi FujiiYuta MurakamiYuhei ItoUlrich SureKiyoshi SaitoBackground: Intraoperative indocyanine green videoangiography (ICG-VA) has been reported to be utilized in various cerebrovascular surgeries, wherein the blood flow is noticeably shown in white with a black background. ICG flow alone, but not other structures, can be observed using ICG-VA. We developed a novel high-resolution intraoperative imaging system using laser light source for simultaneously visualizing both visible light and near-infrared (NIR) fluorescence images of ICG-VA. Methods: We used a novel system for 14 cerebrovascular cases. The operative field was illuminated via an operating microscope using a novel laser light source with four bands at 464 (blue), 532 (green), 640 (red), and 785 nm (NIR region). The observed light from the operative field was split using a beam splitter cube into visible (420– 660 nm) and NIR fluorescence emission light (832–900 nm). Images from the color video and NIR fluorescence emission windows were merged for visualization on a monitor screen simultaneously. Laser light was compared with xenon light, and both setups were tested for cerebrovascular surgeries. Results: Laser light has numerous advantages over xenon light. The present setup clearly visualized the color operative field with enhanced blood flow. Complete clipping or incomplete clipping with neck remnant or remnant flow into an aneurysm was confirmed in aneurysm surgeries. Feeding arteries and draining veins were easily distinguished in case of arteriovenous malformation. Conclusions: Using the present setup, we can observe the color operative field and enhanced blood flow using ICG in real time. This setup could facilitate various cerebrovascular surgeries.https://www.karger.com/Article/FullText/490872Laser lightIndocyanine green videoangiographyDual-image videoangiography |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Taku Sato Mudathir Bakhit Kyouichi Suzuki Jun Sakuma Masazumi Fujii Yuta Murakami Yuhei Ito Ulrich Sure Kiyoshi Saito |
spellingShingle |
Taku Sato Mudathir Bakhit Kyouichi Suzuki Jun Sakuma Masazumi Fujii Yuta Murakami Yuhei Ito Ulrich Sure Kiyoshi Saito A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography Cerebrovascular Diseases Extra Laser light Indocyanine green videoangiography Dual-image videoangiography |
author_facet |
Taku Sato Mudathir Bakhit Kyouichi Suzuki Jun Sakuma Masazumi Fujii Yuta Murakami Yuhei Ito Ulrich Sure Kiyoshi Saito |
author_sort |
Taku Sato |
title |
A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography |
title_short |
A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography |
title_full |
A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography |
title_fullStr |
A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography |
title_full_unstemmed |
A Novel Intraoperative Laser Light Imaging System to Simultaneously Visualize Visible Light and Near-Infrared Fluorescence for Indocyanine Green Videoangiography |
title_sort |
novel intraoperative laser light imaging system to simultaneously visualize visible light and near-infrared fluorescence for indocyanine green videoangiography |
publisher |
Karger Publishers |
series |
Cerebrovascular Diseases Extra |
issn |
1664-5456 |
publishDate |
2018-07-01 |
description |
Background: Intraoperative indocyanine green videoangiography (ICG-VA) has been reported to be utilized in various cerebrovascular surgeries, wherein the blood flow is noticeably shown in white with a black background. ICG flow alone, but not other structures, can be observed using ICG-VA. We developed a novel high-resolution intraoperative imaging system using laser light source for simultaneously visualizing both visible light and near-infrared (NIR) fluorescence images of ICG-VA. Methods: We used a novel system for 14 cerebrovascular cases. The operative field was illuminated via an operating microscope using a novel laser light source with four bands at 464 (blue), 532 (green), 640 (red), and 785 nm (NIR region). The observed light from the operative field was split using a beam splitter cube into visible (420– 660 nm) and NIR fluorescence emission light (832–900 nm). Images from the color video and NIR fluorescence emission windows were merged for visualization on a monitor screen simultaneously. Laser light was compared with xenon light, and both setups were tested for cerebrovascular surgeries. Results: Laser light has numerous advantages over xenon light. The present setup clearly visualized the color operative field with enhanced blood flow. Complete clipping or incomplete clipping with neck remnant or remnant flow into an aneurysm was confirmed in aneurysm surgeries. Feeding arteries and draining veins were easily distinguished in case of arteriovenous malformation. Conclusions: Using the present setup, we can observe the color operative field and enhanced blood flow using ICG in real time. This setup could facilitate various cerebrovascular surgeries. |
topic |
Laser light Indocyanine green videoangiography Dual-image videoangiography |
url |
https://www.karger.com/Article/FullText/490872 |
work_keys_str_mv |
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