Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Intraoperative coronary angioscopy: development of practical techniques.

G H White1, S B Siegel, P D Colman

  • 1Department of Surgery, Harbor-UCLA Medical Center, Torrance.

Angiology
|September 1, 1990
PubMed
Summary

Intraoperative coronary angioscopy techniques were developed for bypass surgery. New ultrafine angioscopes are needed for better visualization of coronary arteries and bypass grafts.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

An alternative anaesthetic technique on nonagenerians undergoing endovascular aortic surgery and long term outcomes.

British journal of anaesthesia·2015
Same author

Uncertainty of measurement in quantitative medical testing: a laboratory implementation guide.

The Clinical biochemist. Reviews·2008
Same author

Improved outcomes with endovascular stent grafts for thoracic aorta transections.

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2008
Same author

Endovascular popliteal aneurysm repair: are the results comparable to open surgery?

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2006
Same author

Complications of aortic endografting.

The Journal of cardiovascular surgery·2005
Same author

Endotension. A review of current views on pathophysiology and treatment.

The Journal of cardiovascular surgery·2003

Area of Science:

  • Cardiovascular Surgery
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Coronary artery bypass grafting (CABG) is a critical surgical procedure.
  • Intraoperative assessment of bypass graft and anastomosis quality is essential for surgical success.
  • Current imaging techniques may have limitations in visualizing fine vascular structures during surgery.

Purpose of the Study:

  • To evaluate and develop safe, practical intraoperative coronary angioscopy techniques for human clinical use.
  • To assess the efficacy of different angioscope designs for examining bypass grafts and native coronary arteries.
  • To identify potential improvements in angioscopic equipment for enhanced surgical assessment.

Main Methods:

  • Studies were conducted using excised and in vivo animal hearts to refine angioscopy techniques.

Related Experiment Videos

  • Multichannel angioscopes (2.3-2.8 mm) were used for examining bypass veins and anastomoses.
  • Smaller optical fibers (1 mm) were employed for inspecting native coronary arteries.
  • Clinical application in coronary artery bypass operations was performed.

    • Main Results:

    • Abnormalities were detected in 11 out of 48 (23%) coronary bypass anastomoses.
    • Significant discrepancies between intraoperative angioscopy and preoperative angiography findings were noted in 2 patients regarding coronary artery stenosis.
    • Different angioscope diameters were found to be optimal for examining different vascular targets.

    Conclusions:

    • Intraoperative coronary angioscopy is a valuable tool for assessing bypass graft and anastomosis integrity.
    • Current angioscopic equipment has limitations, necessitating further design improvements.
    • An ultrafine, multichannel angioscope design is proposed to meet the distinct visualization needs of both anastomoses and recipient arteries.