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Conference Paper: Design of a multi-channel pre-beamform data acquisition system for an ultrasound research scanner

TitleDesign of a multi-channel pre-beamform data acquisition system for an ultrasound research scanner
Authors
KeywordsMulti-channel data acquisition
Pre-beamform data
System hardware design
Issue Date2009
Citation
Proceedings - Ieee Ultrasonics Symposium, 2009 How to Cite?
AbstractAccess to the pre-beamform data of each array channel on an ultrasound scanner is important to experimental investigations on advanced imaging research topics like adaptive beamforming and synthetic aperture imaging. Through such data access, we can obtain in-vitro or in-vivo insights on various imaging methods without resorting to hardware implementation. This paper reports the development of a pre-beamform data acquisition (DAQ) system that can collect data from 128 array elements in parallel. Our DAQ system is intended to interface with a Sonix-RP research scanner through a probe connector port. It comprises three major blocks: 1) a connector board that interfaces with the array probe and the scanner; 2) a main board that triggers data acquisition and controls data transfer to a computer; 3) four receiver boards that are each responsible for acquiring 32 channels of digitized raw data and storing them to the on-board DDR2 memory. The probe-connecting end of this system is interfaced with TX810 chips to facilitate switching between transmit and receive modes. When receiving data, the incoming analog signal is first passed into a low-noise amplifier. These signals are then sent into AD9272 chips on the four receiver boards to perform time gain compensation, anti-alias filtering, and 12-bit data sampling at an 80MHz rate. Subsequently, the digitized signal samples are de-serialized using a Virtex-5 FPGA and are stored into DDR2 memory. To facilitate data retrieval, we implemented a Virtex-5 FPGA on the main board to initiate data transfer, and if preferred, to perform onboard beamforming (programmable by user) prior to sending data to a computer through a USB 2.0 link. For our prototype, we used 16GB of DDR2 memory for data storage. With a frame rate of 35Hz, a 10cm depth-of-view and 128 transmit firings per frame, this DAQ system is capable of collecting pre-beamform data from all array channels for 2.5 seconds. We are currently completing the prototype development in collaboration with Ultrasonix. ©2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/99526
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorTsang, IKHen_HK
dc.contributor.authorYiu, BYSen_HK
dc.contributor.authorCheung, DKHen_HK
dc.contributor.authorChiu, HCTen_HK
dc.contributor.authorCheung, CCPen_HK
dc.contributor.authorYu, ACHen_HK
dc.date.accessioned2010-09-25T18:34:01Z-
dc.date.available2010-09-25T18:34:01Z-
dc.date.issued2009en_HK
dc.identifier.citationProceedings - Ieee Ultrasonics Symposium, 2009en_HK
dc.identifier.issn1051-0117en_HK
dc.identifier.urihttp://hdl.handle.net/10722/99526-
dc.description.abstractAccess to the pre-beamform data of each array channel on an ultrasound scanner is important to experimental investigations on advanced imaging research topics like adaptive beamforming and synthetic aperture imaging. Through such data access, we can obtain in-vitro or in-vivo insights on various imaging methods without resorting to hardware implementation. This paper reports the development of a pre-beamform data acquisition (DAQ) system that can collect data from 128 array elements in parallel. Our DAQ system is intended to interface with a Sonix-RP research scanner through a probe connector port. It comprises three major blocks: 1) a connector board that interfaces with the array probe and the scanner; 2) a main board that triggers data acquisition and controls data transfer to a computer; 3) four receiver boards that are each responsible for acquiring 32 channels of digitized raw data and storing them to the on-board DDR2 memory. The probe-connecting end of this system is interfaced with TX810 chips to facilitate switching between transmit and receive modes. When receiving data, the incoming analog signal is first passed into a low-noise amplifier. These signals are then sent into AD9272 chips on the four receiver boards to perform time gain compensation, anti-alias filtering, and 12-bit data sampling at an 80MHz rate. Subsequently, the digitized signal samples are de-serialized using a Virtex-5 FPGA and are stored into DDR2 memory. To facilitate data retrieval, we implemented a Virtex-5 FPGA on the main board to initiate data transfer, and if preferred, to perform onboard beamforming (programmable by user) prior to sending data to a computer through a USB 2.0 link. For our prototype, we used 16GB of DDR2 memory for data storage. With a frame rate of 35Hz, a 10cm depth-of-view and 128 transmit firings per frame, this DAQ system is capable of collecting pre-beamform data from all array channels for 2.5 seconds. We are currently completing the prototype development in collaboration with Ultrasonix. ©2009 IEEE.en_HK
dc.languageengen_HK
dc.relation.ispartofProceedings - IEEE Ultrasonics Symposiumen_HK
dc.subjectMulti-channel data acquisitionen_HK
dc.subjectPre-beamform dataen_HK
dc.subjectSystem hardware designen_HK
dc.titleDesign of a multi-channel pre-beamform data acquisition system for an ultrasound research scanneren_HK
dc.typeConference_Paperen_HK
dc.identifier.emailYu, ACH:alfred.yu@hku.hken_HK
dc.identifier.authorityYu, ACH=rp00657en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/ULTSYM.2009.5441869en_HK
dc.identifier.scopuseid_2-s2.0-77952838743en_HK
dc.identifier.hkuros155475en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952838743&selection=ref&src=s&origin=recordpageen_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridTsang, IKH=26657657600en_HK
dc.identifier.scopusauthoridYiu, BYS=26657783600en_HK
dc.identifier.scopusauthoridCheung, DKH=36116514100en_HK
dc.identifier.scopusauthoridChiu, HCT=36116418800en_HK
dc.identifier.scopusauthoridCheung, CCP=36116519100en_HK
dc.identifier.scopusauthoridYu, ACH=8699317700en_HK

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