Kodi Doppler Imaging ndi chiyani?

Ultrasound Doppler imaging ndikutha kuyeza ndi kuyeza kuthamanga kwa magazi m'mitsempha yosiyanasiyana, mitsempha, ndi mitsempha. Nthawi zambiri imayimiridwa ndi chithunzi chosuntha pazithunzi za ultrasound, munthu amatha kuzindikira mayeso a Doppler kuchokera kumayendedwe amtundu wamagazi omwe amawonekera pa chithunzi cha ultrasound. Doppler amatha kutanthauzira mitundu yomwe ili pachithunzichi potengera momwe magazi amayendera m'malo omwe akujambulidwa.

Kujambula kwa doppler kumasiyana ndi kuyerekeza kwachikhalidwe cha ultrasound m'njira imodzi yofunikira: sikumajambula mawonekedwe aliwonse. Traditional Ultrasound imapereka zithunzi zamapangidwe osiyanasiyana, ziwalo, ndi mitsempha kuti izindikire kukula, kusweka, zovuta zamapangidwe, ndi zina zambiri zomwe zingatheke. Kujambula kwa Doppler, kumbali ina, kumangopanga chithunzi cha kutuluka kwa magazi.

Kujambula kwa Ultrasound Doppler ndi njira yodziwika padziko lonse lapansi komanso yolemekezeka kwambiri chifukwa cha chikhalidwe chake chosasokoneza komanso chosagwiritsa ntchito ma radio. Doppler sagwiritsa ntchito ma radiation kapena zowononga, koma amagwira ntchito mofanana ndi zida zina zojambulira ma ultrasound; kugwiritsa ntchito mafunde amphamvu kwambiri omwe amawonekera ndikusinthidwa kukhala mitundu, zithunzi, ndi mayendedwe osiyanasiyana.

Ntchito za Doppler Imaging:

Kujambula kwa doppler kumasiyana ndi kuyerekeza kwachikhalidwe cha ultrasound m'njira imodzi yofunikira: sikumajambula mawonekedwe aliwonse. Traditional Ultrasound imapereka zithunzi zamapangidwe osiyanasiyana, ziwalo, ndi mitsempha kuti izindikire kukula, kusweka, zovuta zamapangidwe, ndi zina zambiri zomwe zingatheke.

Komano, kujambula kwa doppler kumagwiritsidwa ntchito pozindikira kutuluka kwa magazi ndi zoopsa zosiyanasiyana zomwe zingachitike m'mitsempha, mitsempha, ndi mitsempha yamagazi. Kujambula kwa doppler nthawi zambiri kumagwiritsidwa ntchito pozindikira magazi, kuzindikira ma valve osagwira ntchito bwino m'mitsempha, kudziwa ngati mitsempha yatsekedwa, kapena kuzindikira kuchepa kwa magazi m'thupi lonse. Zonsezi zomwe zitha kuwopseza thanzi ndi moyo zitha kuwonedwa ndikupewedwa ndi kujambula kwa Doppler.

Anthu amagwiritsa ntchito kujambula kwa Doppler pazinthu zosiyanasiyana: Mwachitsanzo, Doppler yamtima, yomwe imayang'ana kutuluka kwa magazi kupita ndi kuchokera kumtima, ndi gawo lodziwika bwino komanso lovuta kwambiri pakuyezetsa matenda a mtima.

Ntchito zina zodziwika za Doppler zimaphatikizapo transcranial Doppler (kutsata magazi kudzera muubongo ndi mutu), vascular Doppler, ndi venous and arterial Doppler.