Acoustic heterogeneity correction in photoacoustic tomography based on ultrasound tomography

2021 ◽  
Author(s):  
Mingchun Yang ◽  
Yiwu Zhao ◽  
Chao Tian
Keyword(s):  
Photoacoustic Tomography ◽  
Ultrasound Tomography ◽  
Heterogeneity Correction

scholarly journals Ultrasonic Time-of-Flight Computed Tomography for Investigation of Batch Crystallisation Processes

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 639
Author(s):  
Panagiotis Koulountzios ◽  
Tomasz Rymarczyk ◽  
Manuchehr Soleimani
Keyword(s):  
Spatial Information ◽  
Injection Rate ◽  
Ultrasound Tomography ◽  
Measurement Systems ◽  
Process Dynamics ◽  
Tomography System ◽  
Ultrasonic Time ◽  
Crystallisation Process ◽  
Liquid Suspensions

Crystallisation is a crucial step in many industrial processes. Many sensors are being investigated for monitoring such processes to enhance the efficiency of them. Ultrasound techniques have been used for particle sizing characterization of liquid suspensions, in crystallisation process. An ultrasound tomography system with an array of ultrasound sensors can provide spatial information inside the process when compared to single-measurement systems. In this study, the batch crystallisation experiments have been conducted in a lab-scale reactor in calcium carbonate crystallisation. Real-time ultrasound tomographic imaging is done via a contactless ultrasound tomography sensor array. The effect of the injection rate and the stirring speed was considered as two control parameters in these crystallisation functions. Transmission mode ultrasound tomography comprises 32 piezoelectric transducers with central frequency of 40 kHz has been used. The process-based experimental investigation shows the capability of the proposed ultrasound tomography system for crystallisation process monitoring. Information on process dynamics, as well as process malfunction, can be obtained via the ultrasound tomography system.

scholarly journals Role of blood oxygenation saturation in ovarian cancer diagnosis using multi‐spectral photoacoustic tomography

2020 ◽  
Author(s):  
Eghbal Amidi ◽  
Guang Yang ◽  
K. M. Shihab Uddin ◽  
Hongbo Luo ◽  
William Middleton ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cancer Diagnosis ◽  
Blood Oxygenation ◽  
Photoacoustic Tomography

Dose heterogeneity correction for low-energy brachytherapy sources using dual-energy CT images

2014 ◽  
Vol 59 (18) ◽  
pp. 5305-5316 ◽  
Author(s):  
S Mashouf ◽  
E Lechtman ◽  
P Lai ◽  
B M Keller ◽  
A Karotki ◽  
...  
Keyword(s):  
Ct Images ◽  
Dual Energy ◽  
Low Energy ◽  
Dual Energy Ct ◽  
Heterogeneity Correction

scholarly journals Investigation of effective system designs for transcranial photoacoustic tomography of the brain

2014 ◽  
Author(s):  
Kenji Mitsuhashi ◽  
Robert W. Schoonover ◽  
Chao Huang ◽  
Lihong V. Wang ◽  
Mark A. Anastasio
Keyword(s):  
Photoacoustic Tomography ◽  
Effective System ◽  
System Designs ◽  
The Brain
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