X-ray-induced acoustic computed tomography (XACT) imaging with single-shot nanosecond x-ray
| Autor: | Liangzhong Xiang, Siqi Wang, Vassili Ivanov, Prabodh Kumar Pandey |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
screening and diagnosis Technology Physics and Astronomy (miscellaneous) medicine.diagnostic_test business.industry Biophysics Bioimaging and Biosensors ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Single shot X-ray Computed tomography Iterative reconstruction Nanosecond 4.1 Discovery and preclinical testing of markers and technologies Detection Engineering Data acquisition Optics Nondestructive testing Physical Sciences medicine Biomedical Imaging Ultrasonic sensor business Applied Physics |
| Zdroj: | Appl Phys Lett Applied physics letters, vol 119, iss 18 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0071911 |
| Popis: | X-ray-induced acoustic computed tomography (XACT) has emerged as a promising imaging modality with broad applications in both biomedicine and nondestructive testing. The previous XACT imaging systems require thousands of averages to achieve reasonable images. Here, we report the experimental demonstration of single-shot XACT imaging of a metal object using a single-shot 50 ns x-ray pulse. A two-stage dedicated amplification and a 128-channel parallel data acquisition configuration were introduced for XACT imaging to enable sufficient acoustic signal amplification and maintain an overall low noise level for single-shot XACT imaging. Details of the system design are presented; the improved signal-to-noise ratio (>23 dB) and image reconstruction have been demonstrated with a ring ultrasound transducer array imaging system. The study paves the way for realizing real-time XACT imaging and its potential applications in image-guided intervention. |
| Databáze: | OpenAIRE |
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