Development of a new aortoscope system for the use of endovascular intervention.

S. Tanaka, T. Suzuki, T. Iida, N. Tanaka, K. Matsumura, T. Yamakoshi, M. Nogawa, H. Ohtake, G. Watanabe, Masahiro Shibata, K. Yamakoshi

Research output: Contribution to journalArticle

Abstract

"Balloon aortoscopy" is a technique for viewing inner wall of aorta and used in clinics. By this method, endoluminal aortic surface could be clearly monitored, however, during this period, the aortic blood flow is blocked off by the inflated balloon. To solve this clinical problem, we have been developing a prototype aortoscope system without blocking off aortic flow aiming for the use of an assistive technique for endovascular interventions such as stent-graft placement for aortic aneurysm and have been evaluating through in vitro and in vivo tests. The technique introduced for this purpose was the use of intermittent and instantaneous saline jet controlled by a high-speed electromagnetic valve synchronized to heart beat (diastolic phase). In the previous study, we designed an endoscope with two channels (one for saline discharge and the other for forceps insertion), and confirmed the validity of this method by in vitro and in vivo tests. Based on these findings, in this study, we have newly designed a conventional and low price endoscope system aiming for wide clinical use. From the results of in vitro tests using a mock circulation system, it was confirmed that the newly designed system was capable of visualizing a target installed on an inner surface of the mock system suggesting an availability of the system for an aortoscope without blocking off aortic flow.

Fingerprint

Endoscopy
Balloons
Stents
Grafts
Blood
Availability

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing
  • Biomedical Engineering
  • Health Informatics

Cite this

Development of a new aortoscope system for the use of endovascular intervention. / Tanaka, S.; Suzuki, T.; Iida, T.; Tanaka, N.; Matsumura, K.; Yamakoshi, T.; Nogawa, M.; Ohtake, H.; Watanabe, G.; Shibata, Masahiro; Yamakoshi, K.

In: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, Vol. 2012, 2012, p. 5765-5768.

Research output: Contribution to journalArticle

@article{3325605ca7104d2ebb93ddffa0e993d9,
title = "Development of a new aortoscope system for the use of endovascular intervention.",
abstract = "{"}Balloon aortoscopy{"} is a technique for viewing inner wall of aorta and used in clinics. By this method, endoluminal aortic surface could be clearly monitored, however, during this period, the aortic blood flow is blocked off by the inflated balloon. To solve this clinical problem, we have been developing a prototype aortoscope system without blocking off aortic flow aiming for the use of an assistive technique for endovascular interventions such as stent-graft placement for aortic aneurysm and have been evaluating through in vitro and in vivo tests. The technique introduced for this purpose was the use of intermittent and instantaneous saline jet controlled by a high-speed electromagnetic valve synchronized to heart beat (diastolic phase). In the previous study, we designed an endoscope with two channels (one for saline discharge and the other for forceps insertion), and confirmed the validity of this method by in vitro and in vivo tests. Based on these findings, in this study, we have newly designed a conventional and low price endoscope system aiming for wide clinical use. From the results of in vitro tests using a mock circulation system, it was confirmed that the newly designed system was capable of visualizing a target installed on an inner surface of the mock system suggesting an availability of the system for an aortoscope without blocking off aortic flow.",
author = "S. Tanaka and T. Suzuki and T. Iida and N. Tanaka and K. Matsumura and T. Yamakoshi and M. Nogawa and H. Ohtake and G. Watanabe and Masahiro Shibata and K. Yamakoshi",
year = "2012",
language = "English",
volume = "2012",
pages = "5765--5768",
journal = "Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference",
issn = "1557-170X",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Development of a new aortoscope system for the use of endovascular intervention.

AU - Tanaka, S.

AU - Suzuki, T.

AU - Iida, T.

AU - Tanaka, N.

AU - Matsumura, K.

AU - Yamakoshi, T.

AU - Nogawa, M.

AU - Ohtake, H.

AU - Watanabe, G.

AU - Shibata, Masahiro

AU - Yamakoshi, K.

PY - 2012

Y1 - 2012

N2 - "Balloon aortoscopy" is a technique for viewing inner wall of aorta and used in clinics. By this method, endoluminal aortic surface could be clearly monitored, however, during this period, the aortic blood flow is blocked off by the inflated balloon. To solve this clinical problem, we have been developing a prototype aortoscope system without blocking off aortic flow aiming for the use of an assistive technique for endovascular interventions such as stent-graft placement for aortic aneurysm and have been evaluating through in vitro and in vivo tests. The technique introduced for this purpose was the use of intermittent and instantaneous saline jet controlled by a high-speed electromagnetic valve synchronized to heart beat (diastolic phase). In the previous study, we designed an endoscope with two channels (one for saline discharge and the other for forceps insertion), and confirmed the validity of this method by in vitro and in vivo tests. Based on these findings, in this study, we have newly designed a conventional and low price endoscope system aiming for wide clinical use. From the results of in vitro tests using a mock circulation system, it was confirmed that the newly designed system was capable of visualizing a target installed on an inner surface of the mock system suggesting an availability of the system for an aortoscope without blocking off aortic flow.

AB - "Balloon aortoscopy" is a technique for viewing inner wall of aorta and used in clinics. By this method, endoluminal aortic surface could be clearly monitored, however, during this period, the aortic blood flow is blocked off by the inflated balloon. To solve this clinical problem, we have been developing a prototype aortoscope system without blocking off aortic flow aiming for the use of an assistive technique for endovascular interventions such as stent-graft placement for aortic aneurysm and have been evaluating through in vitro and in vivo tests. The technique introduced for this purpose was the use of intermittent and instantaneous saline jet controlled by a high-speed electromagnetic valve synchronized to heart beat (diastolic phase). In the previous study, we designed an endoscope with two channels (one for saline discharge and the other for forceps insertion), and confirmed the validity of this method by in vitro and in vivo tests. Based on these findings, in this study, we have newly designed a conventional and low price endoscope system aiming for wide clinical use. From the results of in vitro tests using a mock circulation system, it was confirmed that the newly designed system was capable of visualizing a target installed on an inner surface of the mock system suggesting an availability of the system for an aortoscope without blocking off aortic flow.

UR - http://www.scopus.com/inward/record.url?scp=84880781447&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880781447&partnerID=8YFLogxK

M3 - Article

VL - 2012

SP - 5765

EP - 5768

JO - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference

JF - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference

SN - 1557-170X

ER -