Kodi Doppler Imaging ndi chiyani?

Kujambula kwa Ultrasound Doppler ndi luso loyesa ndikuyesa kuyenda kwa magazi m'mitsempha yosiyanasiyana, mitsempha, ndi mitsempha yamagazi. Nthawi zambiri imayimiridwa ndi chithunzi choyenda pazenera la ultrasound system, munthu nthawi zambiri amatha kuzindikira mayeso a Doppler kuchokera ku kuyenda kwa magazi kosiyanasiyana komwe kumawonekera pachithunzi cha ultrasound. Doppler amatha kutanthauzira mitundu pachithunzichi kutengera kuyeza kuyenda kwa magazi m'dera lomwe likujambulidwa.

Kujambula zithunzi za doppler kumasiyana ndi kujambula zithunzi za ultrasound m'njira imodzi yofunika kwambiri: sikujambula chithunzi cha kapangidwe kalikonse. Ultrasound yachikhalidwe imapereka zithunzi za kapangidwe ka ziwalo zosiyanasiyana, ziwalo, ndi mitsempha kuti izindikire kukula, kusweka, mavuto a kapangidwe ka thupi, ndi zina zambiri zomwe zingatheke. Kumbali ina, kujambula zithunzi za doppler kumangowonetsa chithunzi cha kuyenda kwa magazi.

Kujambula zithunzi pogwiritsa ntchito ma ultrasound ndi njira yodziwika bwino padziko lonse lapansi komanso yolemekezeka kwambiri chifukwa cha kusawononga komanso kusawononga ma radiation. Doppler sigwiritsa ntchito ma radiation kapena zinthu zowononga, koma imagwira ntchito mofanana ndi zipangizo zina zojambulira pogwiritsa ntchito ma ultrasound; imagwiritsa ntchito mafunde amphamvu omwe amawonetsedwa ndikusintha kukhala mitundu, zithunzi, ndi mayendedwe osiyanasiyana.

Ntchito za Doppler Imaging:

Kujambula zithunzi za doppler kumasiyana ndi kujambula zithunzi za ultrasound m'njira imodzi yofunika kwambiri: sikujambula chithunzi cha kapangidwe kalikonse. Ultrasound yachikhalidwe imapereka zithunzi za kapangidwe ka ziwalo zosiyanasiyana, ziwalo, ndi mitsempha kuti izindikire kukula, kusweka, mavuto a kapangidwe ka thupi, ndi zina zambiri zomwe zingatheke.

Kumbali ina, kujambula kwa doppler kumagwiritsidwa ntchito kuzindikira kuyenda kwa magazi ndi zoopsa zosiyanasiyana zomwe zingachitike m'mitsempha, mitsempha yamagazi, ndi mitsempha yamagazi. Kujambula kwa doppler nthawi zambiri kumagwiritsidwa ntchito kuzindikira magazi oundana, kuzindikira ma valve osagwira ntchito bwino m'mitsempha, kudziwa ngati mitsempha yamagazi yatsekedwa, kapena kuzindikira kuchepa kwa kuyenda kwa magazi m'thupi lonse. Zoopsa zonsezi zomwe zingachitike pa thanzi ndi moyo zitha kuwonedwa ndikupewedwa ndi kujambula kwa Doppler.

Anthu amagwiritsa ntchito Doppler imaging pa ntchito zosiyanasiyana: Mwachitsanzo, cardiac Doppler, yomwe imayang'ana kayendedwe ka magazi kupita ndi kuchokera mumtima, ndi gawo lodziwika bwino komanso lofunika kwambiri poyesa matenda a mtima.

Ntchito zina zodziwika bwino za Doppler ndi monga transcranial Doppler (kutsata kuyenda kwa magazi kudzera mu ubongo ndi mutu), vascular Doppler, ndi general venous ndi arterial Doppler.