Dab tsi ua rau cov khoom cuav ntawm CT?
Dab tsi ua rau cov khoom cuav ntawm CT?

Video: Dab tsi ua rau cov khoom cuav ntawm CT?

Video: Dab tsi ua rau cov khoom cuav ntawm CT?
Video: 2 txiv tub tsom qaib qus hmo ntuj tsov tom(dab neeg tsov)..21/3/2022 2024, Cuaj hlis
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Ntiv nplhaib cuav yog a CT qhov tshwm sim uas tshwm sim los ntawm kev ntsuas tsis raug lossis ua tsis tiav ntawm ib lossis ntau qhov ntsuas pom hauv a CT lub tshuab luam ntawv. Tsawg zaus nws kuj tuaj yeem ua tau ua los ntawm cov tshuaj hluav taws xob tsis txaus, lossis cov khoom sib piv sib kis ntawm lub npog npog 2. Lawv yog ib qho teeb meem tshwm sim hauv cranial CT.

Tib neeg tseem nug, yam khoom cuav ntawm CT scan yog dab tsi?

Khoom cuav feem ntau ntsib nyob rau hauv kev kho mob suav tomography ( CT ), thiab tej zaum yuav tsis pom lossis sim ua kab mob. Muaj ntau ntau hom sib txawv ntawm CT artifacts , suav nrog suab nrov, nqaj tawv, tawg, pseudoenhancement, suab, lub khob hliav qab, helical, nplhaib, thiab hlau khoom cuav.

Tsis tas li, koj yuav nres qhov khoom cuav hlau ntawm CT li cas? Paub daws teeb. Nws paub tias hlau artifacts tuaj yeem txo qis los ntawm kev hloov kho tus qauv tau txais thiab rov tsim kho dua tshiab, los ntawm kev hloov kho cov ntaub ntawv kwv yees thiab/lossis cov ntaub ntawv duab thiab los ntawm kev siv virtual monochromatic imaging rho tawm los ntawm ob lub zog CT.

Ib qho ntxiv, dab tsi ua rau lub khob hliav qab artifacts hauv CT?

Ib qho teeb meem tshwm sim hauv CT cov duab yog streak artifacts tshwm sim los ntawm qhov muaj cov khoom ua kom qis qis hauv qhov pom. Vim yog kev rov tsim dua tshiab ntawm lub khob hliav qab duab, hlau ua cov nyhuv ntawm ci thiab tsaus streaks nyob rau hauv CT cov duab uas ua rau txo cov duab zoo.

Dab tsi ua rau tawv tawv tawv cuav?

Cov khoom cuav muab nws lub npe los ntawm nws lub hauv paus ua : qhov nce ntawm lub zog X-ray lub zog, lossis " tawv "Ntawm X-ray nqaj raws li nws dhau los ntawm cov khoom ntsuas. Qhov kawg tshwm sim yog a nqaj tias, txawm hais tias txo qis hauv kev siv tag nrho, muaj lub zog nruab nrab siab dua qhov xwm txheej nqaj (Daim duab.

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