scholarly journals In vivo optical coherence tomographic imaging to monitor gingival recovery and the adhesive interface in aesthetic oral rehabilitation: A case report

2019 ◽  
Vol 49 (2) ◽  
pp. 171
Author(s):  
Nathalia Del Rio Lyra Graça ◽  
Anna Rebeca de Barros Lins Silva Palmeira ◽  
Luana Osório Fernandes ◽  
Marlus da Silva Pedrosa ◽  
Renata Pedrosa Guimarães ◽  
...  
Keyword(s):  
Case Report ◽  
Tomographic Imaging ◽  
Optical Coherence ◽  
Oral Rehabilitation ◽  
Adhesive Interface

Optical Coherence Tomographic Imaging of In Vivo Cellular Dynamics

1998 ◽  
Author(s):  
Stephen A. Boppart ◽  
Brett E. Bouma ◽  
Costas Pitris ◽  
James F. Southern ◽  
Mark E. Brezinski ◽  
...  
Keyword(s):  
Tomographic Imaging ◽  
Optical Coherence ◽  
Cellular Dynamics

scholarly journals Restenosis of a Polytetrafluoroethylene-Covered Stent Visualized by Coronary Angioscopy and Optical Coherence Tomography: A Case Report

2019 ◽  
Vol 29 (01) ◽  
pp. 058-062
Author(s):  
Makoto Araki ◽  
Hiroyuki Hikita ◽  
Yuta Sudo ◽  
Keiichi Hishikari ◽  
Atsushi Takahashi
Keyword(s):  
Optical Coherence Tomography ◽  
Case Report ◽  
Saphenous Vein Graft ◽  
Proximal Part ◽  
Coronary Intervention ◽  
Covered Stent ◽  
Optical Coherence ◽  
Coronary Angioscopy ◽  
Covered Stent Graft

AbstractAn expandable polytetrafluoroethylene (PTFE)-covered stent graft is beneficial for the treatment of coronary perforations. However, several reports have shown that restenosis and thrombotic occlusion occasionally occur in the stented segment after PTFE-covered stent implantation. A restenosis case after treatment with PTFE-covered stent against saphenous vein graft (SVG) perforation has never been evaluated with optical coherence tomography (OCT) or coronary angioscopy (CAS). This case report presents a 75-year-old man treated with a PTFE-covered stent after he suffered from SVG perforation 6 months ago. He was found to have a focal restenosis of the distal edge of the PTFE-covered stent and underwent percutaneous coronary intervention. OCT showed focal restenosis with homogeneous neointima and exposed struts in the middle and proximal part of the PTFE-covered stent. CAS showed white neointima with a smooth surface at the restenosis site and a sharp border against proximal exposed struts with characteristic links. This case study showed, for the first time in vivo and in a human, the neointimal characteristics of restenosis and uncovered stent struts in a PTFE-covered stent which had been implanted 6 months before. The delayed endothelialization was sustained until 12 months after implantation.

scholarly journals In Vivo optical coherence tomography visualization of intraplaque neovascularization at the site of coronary vasospasm: a case report

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Kenichi Tsujita ◽  
Koichi Kaikita ◽  
Satoshi Araki ◽  
Toshihiro Yamada ◽  
Suguru Nagamatsu ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Case Report ◽  
Coronary Vasospasm ◽  
Optical Coherence

258: Diagnosis and Intraoperative Staging of Bladder Disease by in-vivo Optical Coherence Tomography (OCT)

2004 ◽  
Vol 171 (4S) ◽  
pp. 68-68 ◽  
Author(s):  
Markus D. Sachs ◽  
Dmitry Daniltchenko ◽  
Eva Lankenau ◽  
Frank Koenig ◽  
Gerion Huettmann ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Bladder Disease

Oral Rehabilitation with Multiple Loop Connectors-A Case Report

2011 ◽  
Vol 4 (5) ◽  
pp. 512-514 ◽  
Author(s):  
DR. RAVIKUMAR AKULWAR ◽  
◽  
DR. SUSHEEN GAJARE ◽  
DR. SHIVKUMAR MULE ◽  
DR. ASHWIN KODGI
Keyword(s):  
Case Report ◽  
Oral Rehabilitation

scholarly journals Evaluating Retinal and Choroidal Perfusion Changes after Isometric and Dynamic Activity Using Optical Coherence Tomography Angiography

Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 808
Author(s):  
Max Philipp Brinkmann ◽  
Nikolas Xavier Kibele ◽  
Michelle Prasuhn ◽  
Vinodh Kakkassery ◽  
Mario Damiano Toro ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence Tomography Angiography ◽  
Isometric Exercise ◽  
Dynamic Exercise ◽  
Exercise Heart Rate ◽  
Optical Coherence ◽  
Dynamic Activity ◽  
Capillary Plexus ◽  
Choroidal Perfusion

Optical coherence tomography angiography (OCTA) is a non-invasive tool for imaging and quantifying the retinal and choroidal perfusion state in vivo. This study aimed to evaluate the acute effects of isometric and dynamic exercise on retinal and choroidal sublayer perfusion using OCTA. A pilot study was conducted on young, healthy participants, each of whom performed a specific isometric exercise on the first day and a dynamic exercise the day after. At baseline and immediately after the exercise, heart rate (HR), mean arterial pressure (MAP), superficial capillary plexus perfusion (SCPP), deep capillary plexus perfusion (DCPP), choriocapillaris perfusion (CCP), Sattlers’s layer perfusion (SLP), and Haller’s layer perfusion (HLP) were recorded. A total of 34 eyes of 34 subjects with a mean age of 32.35 ± 7.87 years were included. HR as well as MAP increased significantly after both types of exercise. Both SCPP and DCPP did not show any significant alteration due to isometric or dynamic exercise. After performing dynamic exercise, CCP, SLP, as well as HLP significantly increased. Changes in MAP correlated significantly with changes in HLP after the dynamic activity. OCTA-based analysis in healthy adults following physical activity demonstrated a constant retinal perfusion, supporting the theory of autoregulatory mechanisms. Dynamic exercise, as opposed to isometric activity, significantly changed choroidal perfusion. OCTA imaging may represent a novel and sensitive tool to expand the diagnostic spectrum in the field of sports medicine.

scholarly journals Quantitative Swept-Source Optical Coherence Tomography of Early Enamel Erosion in vivo

2017 ◽  
Vol 51 (4) ◽  
pp. 410-418 ◽  
Author(s):  
Rupert S. Austin ◽  
Maisalamah Haji Taha ◽  
Frederic Festy ◽  
Richard Cook ◽  
Manoharan Andiappan ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Healthy Volunteers ◽  
Orange Juice ◽  
Signal Intensity ◽  
Surface States ◽  
Enamel Surface ◽  
Optical Coherence ◽  
Swept Source ◽  
Water Rinsing

Swept-source optical coherence tomography (SS-OCT) shows potential for the in vivo quantitative evaluation of micro-structural enamel surface phenomena occurring during early erosive demineralization. This randomized controlled single-blind cross-over clinical study aimed to evaluate the use of SS-OCT for detecting optical changes in the enamel of 30 healthy volunteers subjected to orange juice rinsing (erosive challenge) in comparison to mineral water rinsing (control), according to wiped and non-wiped enamel surface states. Participants were randomly allocated to 60 min of orange juice rinsing (pH 3.8) followed by 60 min of water rinsing (pH 6.7) and vice versa, with a 2-week wash-out period. In addition, the labial surfaces of the right or left maxillary incisors were wiped prior to SS-OCT imaging. An automated ImageJ algorithm was designed to analyse the back-scattered OCT signal intensity (D) after orange juice rinsing compared to after water rinsing. D was quantified as the OCT signal scattering from the 33 µm sub-surface enamel, normalised by the total OCT signal intensity entering the enamel. The back-scattered OCT signal intensity increased by 3.1% (95% CI 1.1-5.1%) in the wiped incisors and by 3.5% (95% CI 1.5-5.5%) in the unwiped incisors (p < 0.0001). Wiping reduced the back-scattered OCT signal intensity by 1.7% (95% CI -3.2 to -0.3%; p = 0.02) in comparison to the unwiped enamel surfaces for both rinsing solutions (p = 0.2). SS-OCT detected OCT signal changes in the superficial sub-surface enamel of maxillary central incisor teeth of healthy volunteers after orange juice rinsing.

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