scholarly journals A case of a de-novo lesion in the left circumflex artery treated with excimer laser and drug-coated balloon under the guidance of optical frequency domain imaging

2019 ◽  
Vol 26 (3) ◽  
pp. 294-295
Author(s):  
Shinichiro Masuda ◽  
Takashi Shibui ◽  
Takaaki Tsuchiyama ◽  
Takashi Ashikaga
Keyword(s):  
Frequency Domain ◽  
Excimer Laser ◽  
De Novo ◽  
Optical Frequency ◽  
Circumflex Artery ◽  
Optical Frequency Domain Imaging ◽  
Left Circumflex Artery ◽  
Drug Coated Balloon

scholarly journals Evaluation of Left Main Coronary Artery Using Optical Frequency Domain Imaging and Its Pitfalls

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Vincent Roule ◽  
Idir Rebouh ◽  
Adrien Lemaitre ◽  
Mathieu Bignon ◽  
Pierre Ardouin ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Coronary Intervention ◽  
Optical Frequency ◽  
Left Main ◽  
Circumflex Artery ◽  
Optical Frequency Domain Imaging ◽  
Left Circumflex Artery ◽  
Percutaneous Coronary ◽  
Stepwise Reduction ◽  
Residual Blood

Objectives. We aimed to assess the quality of optical frequency domain imaging (OFDI) of the left main (LM) arterial wall and describe and analyse potential artefacts in this setting. Background. OFDI is increasingly used to assess ambiguous lesions and optimize LM percutaneous coronary intervention. However, its ability to provide artefact-free high-quality images of coronary ostia and large segments such as the LM remains uncertain. Methods. We included 42 consecutive patients who underwent OFDI, including LM imaging. Each OFDI frame was subdivided into four quadrants and analysed. The number of quadrants with artifacts was calculated within the proximal, mid, and distal LM and the first 5 mm of the left anterior descending artery (LAD) and/or left circumflex artery (LCX). Results. The quadrants analysis showed an overall artifact rate of 8.9%, mostly out-of-field (45.1%) or residual blood (44.7%) artefacts. Most artifacts were located in the proximal LM (18.6%) with a stepwise reduction of artifact rates towards distal segments (mid LM 5.8%; distal LM 3.6%, ostial LAD 2.6%, and ostial LCX 0%; p<0.001). While 20 (48.8%) patients had angiographically visible plaques, OFDI showed plaques in 32 patients (76.2%; p=0.007). Conclusion. OFDI can accurately evaluate the LM and detect and assess angiographically unvisualized atherosclerotic plaques providing accurate assessment of >90% of the quadrants of the LM and the ostia of its bifurcation branches. However, artifacts mainly located in the proximal LM and decreasing distally in a stepwise fashion should be considered in the interpretation of OFDI in this setting.

Microball lens integrated fiber probe for optical frequency domain imaging

2011 ◽  
Vol 9 (9) ◽  
pp. 090608-90610 ◽  
Author(s):  
Jae-Ho Han Jae-Ho Han ◽  
J. U. Kang J. U. Kang
Keyword(s):  
Frequency Domain ◽  
Optical Frequency ◽  
Fiber Probe ◽  
Optical Frequency Domain Imaging

scholarly journals Comprehensive microscopy of the esophagus in human patients with optical frequency domain imaging

2008 ◽  
Vol 68 (4) ◽  
pp. 745-753 ◽  
Author(s):  
Melissa J. Suter ◽  
Benjamin J. Vakoc ◽  
Patrick S. Yachimski ◽  
Milen Shishkov ◽  
Gregory Y. Lauwers ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Optical Frequency ◽  
Optical Frequency Domain Imaging

Prediction of the debulking effect of rotational atherectomy using optical frequency domain imaging

2021 ◽  
Author(s):  
Kosuke Tanimura ◽  
Hiromasa Otake ◽  
Hiroyuki Kawamori ◽  
Takayoshi Toba ◽  
Akira Nagasawa ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Rotational Atherectomy ◽  
Optical Frequency ◽  
Optical Frequency Domain Imaging
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