ʻO CBCT niho lapaʻau ka pōkole no Cone beam CT.E like me ka inoa, he cone beam projection computer reconstruction tomography lako.ʻO kāna kumu, ʻo ka X-ray generator e hana i ka circular scan a puni ke kino projection me ka haʻahaʻa haʻahaʻa haʻahaʻa (ʻo ka manawa maʻamau o ka paipu ma kahi o 10 mA).A laila, ʻo ka ʻikepili i loaʻa ma ka "intersection" ma hope o ke kikohoʻe projection a puni ke kino projection no nā manawa he nui (180 mau manawa - 360 mau manawa, ma muli o ka huahana) "hoʻohui hou ʻia a kūkulu hou ʻia" i loko o ka kamepiula e loaʻa i kahi kiʻi ʻekolu-dimensional.He ʻokoʻa loa ka manaʻo kuhi o ka ʻikepili i loaʻa e CBCT mai ka ʻāpana kuʻuna scan CT, a ua like ke ʻano algorithm o ka hoʻonohonoho hou ʻana o ka lolouila.
No ka CBCT niho, ʻo ka mea ʻike palahalaha ke kumu nui e pili ana i ka maikaʻi o ke kiʻi, a ʻo ka hōʻailona a me ka hana ʻenehana o ka mea ʻike palahalaha e pili ana i kona ʻano kiʻi.Hoʻolālā kūʻokoʻa a hoʻolālā ʻia ka niho X-ray flat panel detector e Haobo e noʻonoʻo i nā koi kikoʻī o ke kiʻi niho haiki a me ke kiʻekiʻe kiʻekiʻe, a kūpono ia no nā noi lapaʻau a me ka nānā niho.
Manaʻo huahana lako
Ka manawa hoʻouna: Iulai-14-2022