Dichroism-sensitive photoacoustic imaging for in-depth estimation of the optic axis in fibrous tissue [0.03%]
双色性敏感的光声成像技术在纤维组织中深入估计光学轴心的应用
Camilo Cano,Amir Gholampour,Marc van Sambeek et al.
Camilo Cano et al.
Photoacoustic imaging (PAI) is a developing image modality that benefits from light-matter interaction and low acoustic attenuation to provide functional information on tissue composition at relatively large depths. Several studies have rep...
Optomechanical energy enhanced BF-QEPAS for fast and sensitive gas sensing [0.03%]
一种用于快速灵敏气体传感的光学机械能量增强型BF-QEPAS法
Weilin Ye,Linfeng He,Weihao Liu et al.
Weilin Ye et al.
Traditional beat frequency quartz-enhanced photoacoustic spectroscopy (BF-QEPAS) are limited by short energy accumulation times and the necessity of a decay period, leading to weaker signals and longer measurement cycles. Herein, we present...
Classification and risk assessment of ovarian-adnexal lesions using parametric and radiomic analysis of co-registered ultrasound-photoacoustic tomographic images [0.03%]
基于超声光声影像融合的卵巢附件病变分类与风险评估的参数及影像组学分析方法
Yixiao Lin,Quing Zhu
Yixiao Lin
Ovarian-adnexal lesions are conventionally assessed with ultrasound (US) under the guidance of the Ovarian-Adnexal Reporting and Data System (O-RADS). However, the low specificity of O-RADS results in many unnecessary surgeries. Here, we us...
Compact and full-range carbon dioxide sensor using photoacoustic and resonance dependent modes [0.03%]
基于光声及谐振模式的紧凑型全功能二氧化碳传感器
Yifan Li,Lixian Liu,Liang Zhao et al.
Yifan Li et al.
A compact and robust optical excitation photoacoustic sensor with a self-integrated laser module excitation and an optimized differential resonator was developed to achieve high sensitivity and full linear range detection of carbon dioxide ...
Improved T-shaped quartz tuning fork with isosceles-trapezoidal grooves optimized for quartz-enhanced photoacoustic spectroscopy [0.03%]
一种用于石英增强光声光谱的等腰梯形槽T型石英叉传感器结构优化方法
Feihu Fang,Runqiu Wang,Dongfang Shao et al.
Feihu Fang et al.
The quartz tuning fork (QTF) being the acoustic-electrical conversion element for quartz-enhanced photoacoustic spectroscopy (QEPAS) system directly affects the detection sensitivity. However, the low electromechanical conversion efficiency...
Open-closed single-tube on-beam tuning-fork-enhanced fiber-optic photoacoustic spectroscopy [0.03%]
开放式单管在腔内增强的叉指换能器光纤光声光谱检测技术
Yufeng Pan,Lujun Fu,Jiangshan Zhang et al.
Yufeng Pan et al.
A proof-of-concept on-beam tuning-fork-enhanced photoacoustic sensor based on an open-closed single-tube acoustic-microresonator (AmR) was proposed and investigated for the first time, to the best of our knowledge. Due to the high acoustic ...
Vector-flow imaging of slowly moving ex vivo blood with photoacoustics and pulse-echo ultrasound [0.03%]
基于光声和脉冲回波超声的离体慢速流动血液向量流场成像研究
Caitlin Smith,Jami Shepherd,Guillaume Renaud et al.
Caitlin Smith et al.
We present a technique called photoacoustic vector-flow (PAVF) to quantify the speed and direction of flowing optical absorbers at each pixel from acoustic-resolution PA images. By varying the receiving angle at each pixel in post-processin...
Ultra-sparse reconstruction for photoacoustic tomography: Sinogram domain prior-guided method exploiting enhanced score-based diffusion model [0.03%]
用于光声断层成像的超稀疏重建：基于增强评分扩散模型的先验引导sinogram域方法
Zilong Li,Jiabin Lin,Yiguang Wang et al.
Zilong Li et al.
Photoacoustic tomography, a novel non-invasive imaging modality, combines the principles of optical and acoustic imaging for use in biomedical applications. In scenarios where photoacoustic signal acquisition is insufficient due to sparse-v...
Ultrasound-guided photoacoustic image annotation toolkit in MATLAB (PHANTOM) for preclinical applications [0.03%]
一种基于MATLAB的用于预临床应用的超声引导式光声图像注释工具包（PHANTOM）
Allison Sweeney,Aayush Arora,Skye A Edwards et al.
Allison Sweeney et al.
Depth-dependent fluence-compensation in photoacoustic (PA) imaging is paramount for accurate quantification of chromophores from deep tissues. Here we present a user-friendly toolkit named PHANTOM (PHotoacoustic ANnotation TOolkit for MATLA...
Jiapeng Wang,Hongpeng Wu,Xiaoli Liu et al.
Jiapeng Wang et al.
Dual-comb photoacoustic spectroscopy (DC-PAS) advances spectral measurements by offering high-sensitivity and compact size in a wavelength-independent manner. Here, we present a novel cantilever-enhanced DC-PAS scheme, employing a high-sens...