Doppler Color Ultrasound: Matendawa alibe kobisala

Kujambula kwa ultrasound ya Cardiac Doppler ndi njira yothandiza kwambiri yowunikira matenda a mtima, makamaka matenda obadwa nawo a mtima. Kuyambira m'ma 1980, ukadaulo wowunikira wa ultrasound wayamba kukula mofulumira kwambiri. Monga kujambula kwa maginito, CT ndi isotope scanning, ultrasound ya cardiac Doppler ilinso ndi malo muukadaulo waukulu anayi wowunikira zithunzi mu zamankhwala amakono.
Kujambula zithunzi pogwiritsa ntchito doppler ultrasound ya mtima ndi njira imodzi yofunika kwambiri yowunikira zithunzi pogwiritsa ntchito njira yowunikira mtima yopanda kuwononga mtima. Njira yowunikirayi sikuti imangokhala ndi ubwino woti siipweteka, imabwezeredwa, siivulaza komanso yosavuta, komanso ili ndi zotsatira zomveka bwino komanso zolondola kuposa njira zina zowunikira zithunzi. Pambuyo pa zaka zingapo zokwezedwa, ultrasound pogwiritsa ntchito doppler ultrasound ya mtima yakhala chida chofunikira kwambiri chodziwira matenda m'mankhwala amakono.
Kawirikawiri, ngati zotsatira zake ndi zochepa chabe, palibe chithandizo chapadera chomwe chikufunika. Ngati mtima uli wochepa kapena wovuta, chithandizo chiyenera kuchitika mwachangu momwe zingathere kuti mupewe kusintha kwa kapangidwe ka mtima wa wodwalayo komanso kuthekera kwa mavuto akuluakulu. Pofufuza za cardiomyopathy, cardiac Doppler ultrasound imatha kudziwa kuchuluka kwa myocardial hypertrophy ndi kukula kwa chipinda cha mtima mwa odwala; kwa odwala omwe ali ndi matenda a mtima, cardiac Doppler ultrasound imatha kuwonetsa mwachidwi komwe kuli myocardial ischemia, kuthandiza asing'anga kupanga mapulani oyenera a chithandizo malinga ndi momwe odwala alili. Matenda akuluakulu omwe amapezeka ndi cardiac Doppler ultrasound ndi monga zilonda za aortic (monga zilonda monga aortic stenosis), matenda a valvu ya mtima (monga mitral valve lesions, stenosis, ndi zina zotero), matenda a ventricle, ndi zina zotero.
Chida cha cardiac Doppler ultrasound sichingowonetsa kufalikira kwa magazi osazolowereka mu mtima, komanso chimawonetsa njira ndi komwe magazi amayendera pamtima mpaka pamlingo winawake. Chingathe kudziwa ngati mtundu wa magazi a mtima ndi kuyenda kwa laminar, kuyenda kwa turbulent kapena kuyenda kwa eddy, komanso chimatha kuyeza mawonekedwe, dera, kutalika ndi m'lifupi mwa kuwala kwa magazi. Chida cha cardiac Doppler ultrasound chimatha kuwonetsa mwachindunji ubale womwe ulipo pakati pa kapangidwe ka mtima kosazolowereka ndi kusintha kwa magazi kosazolowereka mwa kuwonetsa zambiri za kuyenda kwa magazi mu chithunzi cha magawo awiri. Ana onse omwe akuganiziridwa kuti ali ndi matenda a mtima obadwa nawo ayenera kuyesedwa ndi ultrasound ya cardiac Doppler kuti adziwe kukula kwa matendawa.