Design photoacoustic imaging for deep penetration diagnostics
Photoacoustic imaging is an emerging and fast-developing biomedical imaging technique which is based on photoacoustic effect. This promising technology can realize imaging of biomedical tissues with high resolution and contrast ratio for deep penetration diagnostics. This project focus on the detect...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2014
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| Online Access: | http://hdl.handle.net/10356/61357 |
| _version_ | 1811681710736146432 |
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| author | Miao, Xilin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Miao, Xilin |
| author_sort | Miao, Xilin |
| collection | NTU |
| description | Photoacoustic imaging is an emerging and fast-developing biomedical imaging technique which is based on photoacoustic effect. This promising technology can realize imaging of biomedical tissues with high resolution and contrast ratio for deep penetration diagnostics. This project focus on the detecting and processing of photoacoustic signals. A near infra-red laser was used to emit laser pulse to irradiate a black wire. Then photoacoustic effect happened and the ultrasonic signals were generated. And these signals were received and converted by an ultrasonic transducer. After conditioning and processing by RC circuits and MCU, the value of converted voltage could be displayed on the LCD screen. The signals’ shapes and the linear relationship between inputs and outputs could be analyzed with MATLAB. These results can turn out that the display of outputs is effective. Then there is a photoacoustic phasoscopy imaging test to obtain high contrast images. This system can be used as a simple diagnostic device, and it may give some inspirations of expanding direction in the future work. |
| first_indexed | 2024-10-01T03:45:17Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/61357 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:45:17Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/613572023-07-07T15:51:15Z Design photoacoustic imaging for deep penetration diagnostics Miao, Xilin School of Electrical and Electronic Engineering Zheng Yuanjin DRNTU::Engineering Photoacoustic imaging is an emerging and fast-developing biomedical imaging technique which is based on photoacoustic effect. This promising technology can realize imaging of biomedical tissues with high resolution and contrast ratio for deep penetration diagnostics. This project focus on the detecting and processing of photoacoustic signals. A near infra-red laser was used to emit laser pulse to irradiate a black wire. Then photoacoustic effect happened and the ultrasonic signals were generated. And these signals were received and converted by an ultrasonic transducer. After conditioning and processing by RC circuits and MCU, the value of converted voltage could be displayed on the LCD screen. The signals’ shapes and the linear relationship between inputs and outputs could be analyzed with MATLAB. These results can turn out that the display of outputs is effective. Then there is a photoacoustic phasoscopy imaging test to obtain high contrast images. This system can be used as a simple diagnostic device, and it may give some inspirations of expanding direction in the future work. Bachelor of Engineering 2014-06-09T06:28:10Z 2014-06-09T06:28:10Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61357 en Nanyang Technological University 51 p. application/pdf |
| spellingShingle | DRNTU::Engineering Miao, Xilin Design photoacoustic imaging for deep penetration diagnostics |
| title | Design photoacoustic imaging for deep penetration diagnostics |
| title_full | Design photoacoustic imaging for deep penetration diagnostics |
| title_fullStr | Design photoacoustic imaging for deep penetration diagnostics |
| title_full_unstemmed | Design photoacoustic imaging for deep penetration diagnostics |
| title_short | Design photoacoustic imaging for deep penetration diagnostics |
| title_sort | design photoacoustic imaging for deep penetration diagnostics |
| topic | DRNTU::Engineering |
| url | http://hdl.handle.net/10356/61357 |
| work_keys_str_mv | AT miaoxilin designphotoacousticimagingfordeeppenetrationdiagnostics |