scholarly journals Optical Coherence Tomography (OCT): A New Imaging Tool During Carotid Artery Stenting

10.5772/53962 ◽  
2013 ◽  
Author(s):  
Shinichi Yoshimura ◽  
Masanori Kawasaki ◽  
Kiyofumi Yamada ◽  
Arihiro Hattori ◽  
Kazuhiko Nishigaki ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Optical Coherence ◽  
Imaging Tool

Optical coherence tomography evaluation of tissue prolapse after carotid artery stenting using closed cell design stents for unstable plaque

2017 ◽  
Vol 10 (3) ◽  
pp. 229-234 ◽  
Author(s):  
Kei Harada ◽  
Shogo Oshikata ◽  
Masahito Kajihara
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Cell Design ◽  
Optical Coherence ◽  
Cross Sectional ◽  
Closed Cell ◽  
Procedural Complications ◽  
Oct Imaging ◽  
Unstable Plaques

Background and purposeDuring carotid artery stenting (CAS) with the use of closed cell design stents for unstable plaques, tissue prolapse between stent struts was evaluated by optical coherence tomography (OCT).Methods14 carotid stenosis lesions diagnosed as unstable plaques by MRI were evaluated by OCT imaging during CAS using closed cell stents. Cross sectional OCT images within the stented segment were evaluated at 1 mm intervals. The slice rate for the presence of tissue prolapse between the struts was calculated.ResultsNo intra-procedural complications occurred. After single stent placement, plaque prolapse was observed in all cases. Slices with any and >500 µm tissue prolapse were seen in 30% and 7.8% of cases, respectively. In 5 of 7 lesions with tissue prolapse >500 µm, additional stents were overlapped. In cases with overlapping stents, slices with any tissue prolapse were significantly decreased from 26% to 16% (p=0.008); in particular, the occurrence of tissue prolapse >500 µm was significantly decreased from 15% to 2.3% (p<0.001). In one case of >500 µm tissue prolapse without an overlapping stent, delayed embolization due to an in-stent thrombus occurred 9 months after the procedure.ConclusionsOCT during CAS using closed cell stent for unstable plaques frequently revealed tissue prolapse between struts. Placement of overlapping stents significantly reduced tissue prolapse, particularly tissue prolapse >500 µm. However, closed cell stents used for unstable plaques may not solve the problem of tissue prolapse.

scholarly journals Optical coherence tomography as an adjunct during carotid artery stenting for carotid web

2019 ◽  
Vol 9 (6) ◽  
pp. 484-486 ◽  
Author(s):  
Christopher R. Pasarikovski ◽  
Joel Ramjist ◽  
Leodante da Costa ◽  
Victor X.D. Yang
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Optical Coherence

Optical Coherence Tomography as an Adjunct During Carotid Artery Stenting for Carotid Atherosclerotic Disease

2019 ◽  
Vol 30 (3) ◽  
pp. 503-509 ◽  
Author(s):  
Christopher R. Pasarikovski ◽  
Joel Ramjist ◽  
Leodante da Costa ◽  
Sandra E. Black ◽  
Jillian Cardinell ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Atherosclerotic Disease ◽  
Optical Coherence

scholarly journals Carotid artery stenting with optical coherence tomography

Neurology ◽  
2018 ◽  
Vol 90 (8) ◽  
pp. 384-385
Author(s):  
Naif M. Alotaibi ◽  
Francesca Sarzetto ◽  
Joel Ramjist ◽  
Victor X.D. Yang
Keyword(s):  
Optical Coherence Tomography ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Optical Coherence

Demonstration of Intraluminal Thrombus in the Carotid Artery by Optical Coherence Tomography: Technical Case Report

2010 ◽  
Vol 67 (3) ◽  
pp. onsE305-onsE305 ◽  
Author(s):  
Shinichi Yoshimura ◽  
Masanori Kawasaki ◽  
Arihiro Hattori ◽  
Kazuhiko Nishigaki ◽  
Shinya Minatoguchi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Magnetic Resonance ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
External Carotid ◽  
Optical Coherence ◽  
Intraluminal Thrombus ◽  
Surgical Specimen ◽  
Occlusion Balloon ◽  
The Right

Abstract OBJECTIVE: Intraluminal thrombus in the carotid artery is often misdiagnosed because clinical imaging, such as angiography and duplex ultrasonography, fails to accurately identify it. Recently, it was reported that optical coherence tomography (OCT), a new imaging modality, can visualize intravascular thrombus in the coronary artery. CLINICAL PRESENTATION: An 83-year old male was admitted due to newly developed motor weakness of the left hand. Diffusion weighted magnetic resonance imaging showed multiple high intensity spots in the territory of the right middle cerebral artery, and magnetic resonance angiography revealed significant stenosis at the origin of the right internal carotid artery. Because of an apparent change in plaque shape on the angiogram just before carotid artery stenting, further examinations such as intravascular ultrasonography (IVUS) and OCT were performed. EXAMINATION: After IVUS examination, both the common carotid and external carotid arteries were occluded by an occlusion balloon system prepared for carotid artery stenting. Then the stenotic site was imaged by OCT from the distal section at 1mm/sec using a built-in pull-back system with continuous injection of saline through the guiding catheter to remove blood from the field of view. Since intraluminal thrombus was clearly demonstrated by an OCT, carotid endarterectomy was performed instead of stenting, and thrombus was confirmed by surgical specimen. CONCLUSION: OCT may provide useful information for diagnosis of an intraluminal thrombus in the carotid artery, which is important for the appropriate selection of therapeutic strategy.

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