Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015093534> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W2015093534 endingPage "1308" @default.
- W2015093534 startingPage "1296" @default.
- W2015093534 abstract "The radiofrequency (RF) signal from a transcranial Doppler (TCD) ultrasound system allows us to track the motion of an embolus in a 2-D space of time and depth. The technique is limited by the narrow bandwidth (long duration) of the transmitted pulse because this provides poor axial resolution. This study aimed to assess whether implementing coded excitation and pulse compression in a TCD system would be a feasible means of increasing the bandwidth and hence improving the axial resolution, without the need for reducing the pulse length and increasing peak power levels. Embolic signals were collected in vitro from a flow phantom using a TCD system, which alternately transmitted coded and noncoded pulses. This allowed the same event to be investigated using the two different types of processing. Quantitative and qualitative measures were used to compare the two processing methods. The in vitro results were promising. They showed that the axial resolution could be improved, on average, by a factor of 6.6, using a pulse length of 13 micros and a chirp bandwidth of 0.8 MHz. This was reduced to a factor of 6 when a temporal bone sample was placed between the transducer and the flow phantom. Qualitatively the journey of an embolus was easier to track using the pulse compressed signal. Sonograms could be generated from smaller receive gates using the pulse compressed signal while still achieving an adequate signal-to-noise ratio. We found that it is both feasible and beneficial to implement coded excitation and pulse compression in a TCD system." @default.
- W2015093534 created "2016-06-24" @default.
- W2015093534 creator A5003751501 @default.
- W2015093534 creator A5020345784 @default.
- W2015093534 creator A5032414527 @default.
- W2015093534 date "2007-08-01" @default.
- W2015093534 modified "2023-09-26" @default.
- W2015093534 title "Coded Excitation in TCD Ultrasound Systems to Improve Axial Resolution" @default.
- W2015093534 cites W1479881020 @default.
- W2015093534 cites W1976040102 @default.
- W2015093534 cites W1984180639 @default.
- W2015093534 cites W1985122684 @default.
- W2015093534 cites W1990521545 @default.
- W2015093534 cites W1995898524 @default.
- W2015093534 cites W1998040023 @default.
- W2015093534 cites W2027317538 @default.
- W2015093534 cites W2060660943 @default.
- W2015093534 cites W2076216750 @default.
- W2015093534 cites W2112270665 @default.
- W2015093534 cites W2117641450 @default.
- W2015093534 cites W2118925233 @default.
- W2015093534 cites W2147257249 @default.
- W2015093534 cites W4237568999 @default.
- W2015093534 cites W4251346909 @default.
- W2015093534 cites W4379381154 @default.
- W2015093534 doi "https://doi.org/10.1016/j.ultrasmedbio.2007.02.012" @default.
- W2015093534 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17466448" @default.
- W2015093534 hasPublicationYear "2007" @default.
- W2015093534 type Work @default.
- W2015093534 sameAs 2015093534 @default.
- W2015093534 citedByCount "9" @default.
- W2015093534 countsByYear W20150935342012 @default.
- W2015093534 countsByYear W20150935342015 @default.
- W2015093534 countsByYear W20150935342016 @default.
- W2015093534 countsByYear W20150935342023 @default.
- W2015093534 crossrefType "journal-article" @default.
- W2015093534 hasAuthorship W2015093534A5003751501 @default.
- W2015093534 hasAuthorship W2015093534A5020345784 @default.
- W2015093534 hasAuthorship W2015093534A5032414527 @default.
- W2015093534 hasConcept C104293457 @default.
- W2015093534 hasConcept C120665830 @default.
- W2015093534 hasConcept C121332964 @default.
- W2015093534 hasConcept C132794960 @default.
- W2015093534 hasConcept C136229726 @default.
- W2015093534 hasConcept C145995521 @default.
- W2015093534 hasConcept C192562407 @default.
- W2015093534 hasConcept C199360897 @default.
- W2015093534 hasConcept C24890656 @default.
- W2015093534 hasConcept C2776257435 @default.
- W2015093534 hasConcept C2779843651 @default.
- W2015093534 hasConcept C41008148 @default.
- W2015093534 hasConcept C520434653 @default.
- W2015093534 hasConcept C554190296 @default.
- W2015093534 hasConcept C56318395 @default.
- W2015093534 hasConcept C71924100 @default.
- W2015093534 hasConcept C76155785 @default.
- W2015093534 hasConceptScore W2015093534C104293457 @default.
- W2015093534 hasConceptScore W2015093534C120665830 @default.
- W2015093534 hasConceptScore W2015093534C121332964 @default.
- W2015093534 hasConceptScore W2015093534C132794960 @default.
- W2015093534 hasConceptScore W2015093534C136229726 @default.
- W2015093534 hasConceptScore W2015093534C145995521 @default.
- W2015093534 hasConceptScore W2015093534C192562407 @default.
- W2015093534 hasConceptScore W2015093534C199360897 @default.
- W2015093534 hasConceptScore W2015093534C24890656 @default.
- W2015093534 hasConceptScore W2015093534C2776257435 @default.
- W2015093534 hasConceptScore W2015093534C2779843651 @default.
- W2015093534 hasConceptScore W2015093534C41008148 @default.
- W2015093534 hasConceptScore W2015093534C520434653 @default.
- W2015093534 hasConceptScore W2015093534C554190296 @default.
- W2015093534 hasConceptScore W2015093534C56318395 @default.
- W2015093534 hasConceptScore W2015093534C71924100 @default.
- W2015093534 hasConceptScore W2015093534C76155785 @default.
- W2015093534 hasIssue "8" @default.
- W2015093534 hasLocation W20150935341 @default.
- W2015093534 hasLocation W20150935342 @default.
- W2015093534 hasOpenAccess W2015093534 @default.
- W2015093534 hasPrimaryLocation W20150935341 @default.
- W2015093534 hasRelatedWork W2003705952 @default.
- W2015093534 hasRelatedWork W2004966293 @default.
- W2015093534 hasRelatedWork W2015093534 @default.
- W2015093534 hasRelatedWork W2030264254 @default.
- W2015093534 hasRelatedWork W2077223076 @default.
- W2015093534 hasRelatedWork W2131984831 @default.
- W2015093534 hasRelatedWork W2149915850 @default.
- W2015093534 hasRelatedWork W2160422926 @default.
- W2015093534 hasRelatedWork W784730183 @default.
- W2015093534 hasRelatedWork W1915738344 @default.
- W2015093534 hasVolume "33" @default.
- W2015093534 isParatext "false" @default.
- W2015093534 isRetracted "false" @default.
- W2015093534 magId "2015093534" @default.
- W2015093534 workType "article" @default.