Simultaneous Acquisition of Ultrasound and Gamma Signals with a Single-Channel Readout
- Authors
- Ullah, Muhammad Nasir; Park, Yuseung; Kim, Gyeong Beom; Kim, Chanho; Park, Chansun; Choi, Hojong; Yeom, Jung-Yeol
- Issue Date
- 2월-2021
- Publisher
- MDPI
- Keywords
- gamma probe; ultrasound probe; hybrid systems; silicon photomultiplier (SiPM); nuclear medicine (NM)
- Citation
- SENSORS, v.21, no.4, pp.1 - 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS
- Volume
- 21
- Number
- 4
- Start Page
- 1
- End Page
- 12
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/129337
- DOI
- 10.3390/s21041048
- ISSN
- 1424-8220
- Abstract
- We propose an integrated front-end data acquisition circuit for a hybrid ultrasound (US)-gamma probe. The proposed circuit consists of three main parts: (1) a preamplifier for the gamma probe, (2) a preprocessing analog circuit for the US, and (3) a digitally controlled analog switch. By exploiting the long idle time of the US system, an analog switch can be used to acquire data of both systems using a single output channel simultaneously. On the nuclear medicine (NM) gamma probe side, energy resolutions of 18.4% and 17.5% were acquired with the standalone system and with the proposed switching circuit, respectively, when irradiated with a Co-57 radiation source. Similarly, signal-to-noise ratios of 14.89 and 13.12 dB were achieved when US echo signals were acquired with the standalone system and with the proposed switching circuit, respectively. Lastly, a combined US-gamma probe was used to scan a glass target and a sealed radiation source placed in a water tank. The results confirmed that, by using a hybrid US-gamma probe system, it is possible to distinguish between the two objects and acquire structural information (ultrasound) alongside molecular information (gamma radiation source).
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Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
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