scholarly journals Validating a bimodal intravascular ultrasound (IVUS) and near-infrared fluorescence (NIRF) catheter for atherosclerotic plaque detection in rabbits

2015 ◽  
Vol 6 (10) ◽  
pp. 3989 ◽  
Author(s):  
Maxime Abran ◽  
Barbara E. Stähli ◽  
Nolwenn Merlet ◽  
Teodora Mihalache-Avram ◽  
Mélanie Mecteau ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Atherosclerotic Plaque ◽  
Near Infrared ◽  
Near Infrared Fluorescence ◽  
Plaque Detection

scholarly journals Influence of Myocardial Bridge On Atherosclerotic Plaque Distribution and Characteristics Evaluated By Near-Infrared Spectroscopy Intravascular Ultrasound

2021 ◽  
Author(s):  
Kan Saito ◽  
Hideki Kitahara ◽  
Takaaki Mastuoka ◽  
Naoto Mori ◽  
Kazuya Tateishi ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Intravascular Ultrasound ◽  
Near Infrared Spectroscopy ◽  
Atherosclerotic Plaque ◽  
Lipid Content ◽  
Near Infrared ◽  
Proximal Segment ◽  
Plaque Burden ◽  
Myocardial Bridge ◽  
Ivus Imaging

Abstract Purpose This study aims to clarify whether myocardial bridge (MB) could influence atherosclerotic plaque characteristics assessed by using near-infrared spectroscopy-intravascular ultrasound (NIRS-IVUS) imaging. Methods One hundred and sixteen patients who underwent percutaneous coronary intervention (PCI) using NIRS-IVUS imaging were included. MB was defined as an echo-lucent band surrounding left anterior descending artery (LAD). In MB patients, LAD was divided into 3 segments: proximal, MB, and distal segments. In non-MB patients, corresponding 3 segments were defined based on the average length of the above segments. Segmental maximum plaque burden and lipid content derived from NIRS-IVUS imaging in the section of maximum plaque burden were evaluated in each segment. Lipid content of atherosclerotic plaque was evaluated as lipid core burden index (LCBI) and maxLCBI4mm. LCBI is the fraction of pixels indicating lipid within a region multiplied by 1000, and the maximum LCBI in any 4-mm region was defined as maxLCBI4mm. Results MB was identified in 42 patients. MB was not associated with maximum plaque burden in proximal segment. LCBI and maxLCBI4mm were significantly lower in patients with MB than those without in proximal segment. Multivariable analysis demonstrated both MB and maximum plaque burden in proximal segment to be independent predictors of LCBI in proximal segment. Conclusion Lipid content of atherosclerotic plaque assessed by NIRS-IVUS imaging was significantly smaller in patients with MB than those without. MB could be considered as a predictor of lipid content of atherosclerotic plaque when assessed by NIRS-IVUS imaging.

BIMODAL INTRAVASCULAR ULTRASOUND (IVUS)/NEAR-INFRARED FLUORESCENCE (NIRF) MOLECULAR IMAGING OF ATHEROSCLEROTIC RABBITS

2016 ◽  
Vol 32 (10) ◽  
pp. S198-S199
Author(s):  
M. Bertrand ◽  
M. Abran ◽  
N. Merlet ◽  
T. Mihalache-Avram ◽  
P. Tardif ◽  
...  
Keyword(s):  
Molecular Imaging ◽  
Intravascular Ultrasound ◽  
Near Infrared ◽  
Near Infrared Fluorescence

An algorithm to correct 2D near-infrared fluorescence signals using 3D intravascular ultrasound architectural information

2011 ◽  
Author(s):  
Georgios Mallas ◽  
Dana H. Brooks ◽  
Amir Rosenthal ◽  
Claudio Vinegoni ◽  
Marcella A. Calfon ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Near Infrared ◽  
Near Infrared Fluorescence
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