Siemens EV-8C4 Ultrasound Transducer Probe Endocavitary

Inqaku loLwazi

Umfanekiso wokuhamba kombala weDoppler

Inkqubo yomfanekiso wokuhamba koMbala weDoppler ingabonisa ngaxeshanye umfanekiso wohlobo lwe-B kunye nedatha yokuhamba kwegazi ye-Doppler (icala lokuhamba kwegazi, isantya sokuhamba, ukusasazwa kokuhamba) kwenkqubo yokuskena kabini kwe-ultrasound. Amandla ombala we-angio(CPA) achonge amandla asasazeke ngasemva eeseli zegazi ekuhambeni kwegazi, angazange ahlule indlela yokuhamba kwegazi, kwaye ayinanto yakwenza ne-engile engu-θ (i-engile phakathi kwecala lezandi zamaza kunye necala lokuhamba kwegazi. ). I-CPA inokuphucula ubuntununtunu bokubona ukuhamba kwegazi, ngakumbi ilungele ukubonisa ukuhamba kwegazi okunesantya esisezantsi semithambo emincinci, kodwa ayikwazi ukubonisa icala lokuhamba kwegazi.

Umfanekiso weHarmonic

I-Harmonic imaging isebenzisa i-non-linear propagation ye-ultrasound ngokusebenzisa izicubu zomzimba. Xa amaza esandi akhutshwayo ngu-f 0, ukuphindaphindeka kwe-echo (ngenxa yokubonakalisa okanye ukusasazeka) kubandakanya i-f 0 (ebizwa ngokuba ngamaza asisiseko), 2f 0, 3F 0 njalo njalo I-harmonic yesibini (2f 0) inawona mandla makhulu .

I-ultrasonic imaging harmonic (UHI) isekelwe kulwazi lomzimba womntu oqhutywe yi-harmonic yesibini kwi-echo (ukubonakalisa okanye ukusabalalisa). I-Harmonic imaging ngaphandle kwe-UCA ibizwa ngokuba yi-harmonic imaging yendabuko okanye i-tissue imaging harmonic. I-Harmonic imaging usebenzisa i-UCA (i-agent echasene ne-ultrasound) ibizwa ngokuba yi-maging harmonic imaging