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Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆

The use of operating microscopes is limited by the focal length. Surgeons using these instruments cannot simultaneously view and access the surgical field and must choose one or the other. The longer focal length (more than 1 000 mm) of an operating telescope permits a position away from the operati...

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Autores principales: Zhu, Xingbao, Luo, Junli, Liu, Yun, Chen, Guolong, Liu, Song, Ruan, Qiangjin, Deng, Xunding, Wang, Dianchun, Fan, Quanshui, Pan, Xinghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4341286/
https://www.ncbi.nlm.nih.gov/pubmed/25722675
http://dx.doi.org/10.3969/j.issn.1673-5374.2012.12.006
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author Zhu, Xingbao
Luo, Junli
Liu, Yun
Chen, Guolong
Liu, Song
Ruan, Qiangjin
Deng, Xunding
Wang, Dianchun
Fan, Quanshui
Pan, Xinghua
author_facet Zhu, Xingbao
Luo, Junli
Liu, Yun
Chen, Guolong
Liu, Song
Ruan, Qiangjin
Deng, Xunding
Wang, Dianchun
Fan, Quanshui
Pan, Xinghua
author_sort Zhu, Xingbao
collection PubMed
description The use of operating microscopes is limited by the focal length. Surgeons using these instruments cannot simultaneously view and access the surgical field and must choose one or the other. The longer focal length (more than 1 000 mm) of an operating telescope permits a position away from the operating field, above the surgeon and out of the field of view. This gives the telescope an advantage over an operating microscope. We developed a telescopic system using screen-imaging guidance and a modified portable video macroscope constructed from a Computar MLH-10 × macro lens, a DFK-21AU04 USB CCD Camera and a Dell laptop computer as monitor screen. This system was used to establish a middle cerebral artery occlusion model in rats. Results showed that magnification of the modified portable video macroscope was appropriate (5–20 ×) even though the Computar MLH-10 × macro lens was placed 800 mm away from the operating field rather than at the specified working distance of 152.4 mm with a zoom of 1–40 ×. The screen-imaging telescopic technique was clear, life-like, stereoscopic and matched the actual operation. Screen-imaging guidance led to an accurate, smooth, minimally invasive and comparatively easy surgical procedure. Success rate of the model establishment evaluated by neurological function using the modified neurological score system was 74.07%. There was no significant difference in model establishment time, sensorimotor deficit and infarct volume percentage. Our findings indicate that the telescopic lens is effective in the screen surgical operation mode referred to as “long distance observation and short distance operation” and that screen-imaging guidance using an modified portable video macroscope can be utilized for the establishment of a middle cerebral artery occlusion model and micro-neurosurgery.
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spelling pubmed-43412862015-02-26 Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆ Zhu, Xingbao Luo, Junli Liu, Yun Chen, Guolong Liu, Song Ruan, Qiangjin Deng, Xunding Wang, Dianchun Fan, Quanshui Pan, Xinghua Neural Regen Res Techniques and Methods: Emerging Technology in Neuroregeneration The use of operating microscopes is limited by the focal length. Surgeons using these instruments cannot simultaneously view and access the surgical field and must choose one or the other. The longer focal length (more than 1 000 mm) of an operating telescope permits a position away from the operating field, above the surgeon and out of the field of view. This gives the telescope an advantage over an operating microscope. We developed a telescopic system using screen-imaging guidance and a modified portable video macroscope constructed from a Computar MLH-10 × macro lens, a DFK-21AU04 USB CCD Camera and a Dell laptop computer as monitor screen. This system was used to establish a middle cerebral artery occlusion model in rats. Results showed that magnification of the modified portable video macroscope was appropriate (5–20 ×) even though the Computar MLH-10 × macro lens was placed 800 mm away from the operating field rather than at the specified working distance of 152.4 mm with a zoom of 1–40 ×. The screen-imaging telescopic technique was clear, life-like, stereoscopic and matched the actual operation. Screen-imaging guidance led to an accurate, smooth, minimally invasive and comparatively easy surgical procedure. Success rate of the model establishment evaluated by neurological function using the modified neurological score system was 74.07%. There was no significant difference in model establishment time, sensorimotor deficit and infarct volume percentage. Our findings indicate that the telescopic lens is effective in the screen surgical operation mode referred to as “long distance observation and short distance operation” and that screen-imaging guidance using an modified portable video macroscope can be utilized for the establishment of a middle cerebral artery occlusion model and micro-neurosurgery. Medknow Publications & Media Pvt Ltd 2012-04-25 /pmc/articles/PMC4341286/ /pubmed/25722675 http://dx.doi.org/10.3969/j.issn.1673-5374.2012.12.006 Text en Copyright: © Neural Regeneration Research http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Techniques and Methods: Emerging Technology in Neuroregeneration
Zhu, Xingbao
Luo, Junli
Liu, Yun
Chen, Guolong
Liu, Song
Ruan, Qiangjin
Deng, Xunding
Wang, Dianchun
Fan, Quanshui
Pan, Xinghua
Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title_full Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title_fullStr Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title_full_unstemmed Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title_short Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
title_sort screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion☆
topic Techniques and Methods: Emerging Technology in Neuroregeneration
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4341286/
https://www.ncbi.nlm.nih.gov/pubmed/25722675
http://dx.doi.org/10.3969/j.issn.1673-5374.2012.12.006
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