Yintoni iDoppler imaging?

I-Ultrasound Doppler imaging kukukwazi ukuvavanya kunye nokulinganisa ukuhamba kwegazi kwimithambo eyahlukeneyo, imithambo kunye nemithambo. Idla ngokumelwa ngumfanekiso oshukumayo kwiscreen se-ultrasound, umntu unokwazi ukubona uvavanyo lweDoppler ukusuka ekuphumeni kwegazi okunemibala ebonakalayo kumfanekiso we-ultrasound. I-Doppler inokutolika imibala emfanekisweni ngokusekelwe kumlinganiselo wokuhamba kwegazi kwindawo ethile eboniswayo.

I-Doppler imaging yahlukile kumfanekiso we-ultrasound wesintu ngendlela enye esisiseko: ayibonisi mfanekiso nasiphi na isakhiwo. I-ultrasound yemveli ibonelela ngemifanekiso yezakhiwo ezahlukeneyo, amalungu, kunye nemithambo ukuxilonga ukukhula, ukuphuka, iingxaki zesakhiwo, kunye nezinye iimeko ezininzi ezinokubakho. I-Doppler imaging, kwelinye icala, iprojekthi kuphela umfanekiso wokuhamba kwegazi.

I-Ultrasound Doppler imaging yindlela eyaziwayo kwihlabathi jikelele kwaye ihlonitshwa kakhulu ngenxa yendalo yayo engabonakaliyo kunye ne-non-radioactive. I-Doppler ayisebenzisi i-radiation okanye i-invasive features, kodwa isebenza ngendlela efanayo nezinye izixhobo zokucinga ze-ultrasound; kusetyenziswa amaza omsindo aphezulu abonakaliswa kwaye aguqulwe abe yimibala, imifanekiso, kunye neentshukumo ezahlukeneyo.

Iinkonzo zoMfanekiso weDoppler:

I-Doppler imaging yahlukile kumfanekiso we-ultrasound wendabuko ngendlela enye esisiseko: ayibonisi mfanekiso nasiphi na isakhiwo. I-ultrasound yemveli ibonelela ngemifanekiso yezakhiwo ezahlukeneyo, amalungu, kunye nemithambo ukuxilonga ukukhula, ukuphuka, iingxaki zesakhiwo, kunye nezinye iimeko ezininzi ezinokubakho.

I-Doppler imaging, kwelinye icala, isetyenziselwa ukubona ukuhamba kwegazi kunye neengozi ezahlukeneyo ezinokubakho ngaphakathi kwemithambo, imithambo yegazi kunye nemithambo yegazi. I-Doppler imaging isoloko isetyenziselwa ukubona amahlwili egazi, ukuchonga iivalvu ezingasebenzi kakuhle emithanjeni, ukubona ukuba imithambo ivalekile, okanye ichonge ukujikeleza kwegazi okuncitshisiweyo kuwo wonke umzimba. Zonke ezi zinto zinobungozi empilweni nasebomini zinokujongwa kwaye zithintelwe ngomfanekiso weDoppler.

Abantu basebenzisa umfanekiso weDoppler kwizicelo ezahlukeneyo: Umzekelo, iDoppler yentliziyo, ejonga ukuhamba kwegazi ukuya nokusuka entliziyweni, yinxalenye eqhelekileyo nebaluleke kakhulu yovavanyo lwesifo sentliziyo.

Ezinye izicelo ezidumileyo zeDoppler ziquka i-transcranial Doppler (ukulandelela ukuhamba kwegazi ebuchotsheni nasentloko), i-vascular Doppler, kunye ne-venous jikelele kunye ne-arterial Doppler.