scholarly journals Evaluation of breast tumor margins in vivo with intraoperative photoacoustic imaging

2012 ◽  
Vol 20 (8) ◽  
pp. 8726 ◽  
Author(s):  
Lei Xi ◽  
Stephen R. Grobmyer ◽  
Lei Wu ◽  
Ruimin Chen ◽  
Guangyin Zhou ◽  
...  
Keyword(s):  
Breast Tumor ◽  
Photoacoustic Imaging ◽  
Tumor Margins

Development of mesoporous silica-based nanoprobes for optical bioimaging applications

2021 ◽  
Author(s):  
Bo Sun ◽  
Xu Zhen ◽  
Xiqun Jiang
Keyword(s):  
Mesoporous Silica ◽  
Fluorescence Imaging ◽  
Photoacoustic Imaging

This review mainly introduced the MSNs-based nanoprobes for in vivo bioimaging applications including fluorescence imaging and photoacoustic imaging.

scholarly journals In Vitro and In Vivo Multispectral Photoacoustic Imaging for the Evaluation of Chromophore Concentration

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3366
Author(s):  
Aneline Dolet ◽  
Rita Ammanouil ◽  
Virginie Petrilli ◽  
Cédric Richard ◽  
Piero Tortoli ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Photoacoustic Imaging ◽  
Hyperspectral Remote Sensing ◽  
Reference Spectrum ◽  
In Vivo Experiments ◽  
Mouse Tumors ◽  
Chromophore Concentration ◽  
Saturation Rate

Multispectral photoacoustic imaging is a powerful noninvasive medical imaging technique that provides access to functional information. In this study, a set of methods is proposed and validated, with experimental multispectral photoacoustic images used to estimate the concentration of chromophores. The unmixing techniques used in this paper consist of two steps: (1) automatic extraction of the reference spectrum of each pure chromophore; and (2) abundance calculation of each pure chromophore from the estimated reference spectra. The compared strategies bring positivity and sum-to-one constraints, from the hyperspectral remote sensing field to multispectral photoacoustic, to evaluate chromophore concentration. Particularly, the study extracts the endmembers and compares the algorithms from the hyperspectral remote sensing domain and a dedicated algorithm for segmentation of multispectral photoacoustic data to this end. First, these strategies are tested with dilution and mixing of chromophores on colored 4% agar phantom data. Then, some preliminary in vivo experiments are performed. These consist of estimations of the oxygen saturation rate (sO2) in mouse tumors. This article proposes then a proof-of-concept of the interest to bring hyperspectral remote sensing algorithms to multispectral photoacoustic imaging for the estimation of chromophore concentration.

Core-Shell Pd@Au Nanoplates as Theranostic Agents for In-Vivo Photoacoustic Imaging, CT Imaging, and Photothermal Therapy

2014 ◽  
Vol 26 (48) ◽  
pp. 8210-8216 ◽  
Author(s):  
Mei Chen ◽  
Shaoheng Tang ◽  
Zhide Guo ◽  
Xiaoyong Wang ◽  
Shiguang Mo ◽  
...  
Keyword(s):  
Photothermal Therapy ◽  
Photoacoustic Imaging ◽  
Ct Imaging ◽  
Core Shell ◽  
Theranostic Agents

In vivo photoacoustic imaging of tyrosinase expressing tumours in mice

2012 ◽  
Author(s):  
Jan Laufer ◽  
Amit Jathoul ◽  
Peter Johnson ◽  
Edward Zhang ◽  
Mark Lythgoe ◽  
...  
Keyword(s):  
Photoacoustic Imaging

Photoacoustic imaging of breast tumor vascularization: a comparison with MRI and histopathology

2013 ◽  
Author(s):  
Michelle Heijblom ◽  
Daniele Piras ◽  
Frank M. van den Engh ◽  
Joost M. Klaase ◽  
Mariël Brinkhuis ◽  
...  
Keyword(s):  
Breast Tumor ◽  
Photoacoustic Imaging ◽  
Tumor Vascularization
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