Ultrasound Capsule Endoscopy Components for in vivo and ex vivo Microultrasound Near-Field Imaging
| Autor: | Benjamin F. Cox, R Eddie Clutton, Yongqiang Qiu, Hannah Thomson, Sandy Cochran, Holly S. Lay, Christina Lemke |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry 0206 medical engineering Ultrasound Single element 02 engineering and technology 020601 biomedical engineering Near field imaging 030218 nuclear medicine & medical imaging law.invention 03 medical and health sciences 0302 clinical medicine Transducer Capsule endoscopy law In vivo Bowel imaging business Ex vivo Biomedical engineering |
| Zdroj: | 2019 IEEE International Ultrasonics Symposium (IUS). |
| Popis: | Ultrasound capsule endoscopy (USCE) has attracted increased interest recently. In order to image the walls of the gastrointestinal (GI) tract with USCE efficiently, both high-frequency ultrasound (i.e. microultrasound) imaging and good acoustic coupling are needed. Tissue to be scanned is expected close to the transducer surface, but the near-field tissue echoes may be easily lost in the acoustic ring-down. Here, we present experimental ex vivo and in vivo porcine small bowel imaging results from an USCE prototype. The preliminary results show that the near-field image can be recovered after post-processing. Although some limitations in imaging the GI tract are inherent in the use of focused single element transducers, solving the problem of near-field imaging is relevant to all USCE implementations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|