Iyini i-Doppler Imaging?

I-Ultrasound Doppler imaging yikhono lokuhlola nokukala ukugeleza kwegazi emithanjeni ehlukahlukene, emithanjeni nasemithanjeni. Ngokuvamile emelelwa isithombe esinyakazayo esikrinini sesistimu ye-ultrasound, umuntu ngokuvamile angakwazi ukubona ukuhlolwa kwe-Doppler ekugelezeni kwegazi okunombala okubonakala esithombeni se-ultrasound. I-Doppler ingakwazi ukuhumusha imibala esesithombeni ngokususelwe ekulinganiseni ukugeleza kwegazi endaweni ethile edwetshwayo.

I-Doppler imaging ihlukile ekufanekisweni kwe-ultrasound yendabuko ngendlela eyodwa ebalulekile: empeleni ayifaki isithombe sanoma yisiphi isakhiwo. I-ultrasound yendabuko inikeza izithombe zezakhiwo ezihlukahlukene, izitho, nemithambo ukuze kuhlonzwe ukukhula, ukuphuka, izinkinga zesakhiwo, nezinye izimo eziningi ezingaba khona. I-Doppler imaging, ngakolunye uhlangothi, ikhiqiza kuphela isithombe sokugeleza kwegazi.

I-Ultrasound Doppler imaging iyindlela eyaziwa emhlabeni wonke futhi ehlonishwa kakhulu ngenxa yemvelo yayo engahlaseli futhi engasebenzisi imisebe. I-Doppler ayisebenzisi imisebe noma izici ezihlaselayo, kodwa kunalokho isebenza ngendlela efanayo nezinye izinto zokuthwebula ze-ultrasound; kusetshenziswa amaza omsindo aphezulu aboniswa futhi aguqulelwe abe imibala, izithombe, nokunyakaza okuhlukahlukene.

Izinsizakalo ze-Doppler imaging:

I-Doppler imaging ihlukile ekufanekisweni kwe-ultrasound yendabuko ngendlela eyodwa ebalulekile: empeleni ayifaki isithombe sanoma yisiphi isakhiwo. I-ultrasound yendabuko inikeza izithombe zezakhiwo ezihlukahlukene, izitho, nemithambo ukuze kuhlonzwe ukukhula, ukuphuka, izinkinga zesakhiwo, nezinye izimo eziningi ezingaba khona.

I-Doppler imaging, ngakolunye uhlangothi, isetshenziselwa ukubona ukugeleza kwegazi nezingozi ezihlukahlukene ezingase zenzeke emithanjeni, emithanjeni nasemithanjeni yegazi. I-Doppler imaging ivame ukusetshenziselwa ukubona amahlule egazi, ukuhlonza ama-valve angasebenzi kahle emithanjeni, ukunquma ukuthi imithambo ivalekile yini, noma ukukhomba ukujikeleza kwegazi okunciphile kuwo wonke umzimba. Zonke lezi zinsongo ezingaba khona empilweni nasempilweni zingabonwa futhi zivinjwe nge-Doppler imaging.

Abantu basebenzisa izithombe ze-Doppler ezinhlelweni ezihlukene: Isibonelo, i-Doppler yenhliziyo, ehlola ukugeleza kwegazi ukuya nokusuka enhliziyweni, iyingxenye evamile futhi ebucayi kakhulu yokuhlolwa kwesifo senhliziyo.

Ezinye izinhlelo zokusebenza ezidumile ze-Doppler zifaka i-transcranial Doppler (ilandelela ukugeleza kwegazi ebuchosheni nasekhanda), i-vascular Doppler, kanye ne-venous ne-arterial Doppler.