Cov txheej txheem:
![Qhov projection imaging yog dab tsi? Qhov projection imaging yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13886368-what-is-projection-imaging-j.webp)
Video: Qhov projection imaging yog dab tsi?
![Video: Qhov projection imaging yog dab tsi? Video: Qhov projection imaging yog dab tsi?](https://i.ytimg.com/vi/8sgjA_XiFDI/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Xoo hluav taws xob duab yog a txoj hau kev txheej txheem, thiab duab kev tsim tawm yuav siv qhov chaw ib txwm muaj ntawm cov yeeb yaj kiab photosensitive, txawm hais tias ncaj qha xoo hluav taws xob duab yog ua ntau thiab ntau dua. Hauv nws daim ntawv feem ntau, X-ray duab yog kev coj ua zoo.
Hauv qhov no, Qhov Kev Tshaj Tawm txhais li cas hauv radiology?
Kev kwv yees hais txog txoj kev xoo hluav taws xob nqaj, zoo li xub, hla lub cev thaum tus neeg nyob hauv txoj haujlwm ntawd. Nco ntsoov, tus xub tuaj yeem hla dhau thiab ua haujlwm pem hauv ntej mus rau tom qab, rov qab rau pem hauv ntej, ib sab mus rau ib sab, thiab lwm yam.
Ntxiv mus, dab tsi yog kev xa duab? kis duab Txhawm rau tsim cov duab nrog xoo hluav taws xob, suav tomography (CT) kuaj, thiab tshuaj fluoroscopy, cov kws kho hluav taws xob xa kab teeb ntawm lub zog loj photons los ntawm lub cev qauv uas lawv tau kawm.
Tom qab ntawd, ib tus tuaj yeem nug, uas yog hom kev ntsuas hluav taws xob li cas?
Cov ntsiab lus hauv txheej no (54)
- Radiographic projection. Cov kev taw qhia lossis txoj hauv kev.
- Posteroanterior (PA)
- Anteroposterior.
- AP lossis PA oblique projections.
- Kev sib hloov nruab nrab lossis kev sib hloov ib sab.
- Mediolateral.
- Tom qab ntawv
- Supine.
Dab tsi yog thawj nqaj hauv radiology?
Thaum ua qhov raug, xoo hluav taws xob tawm ntawm lub raj raws li qhov paub tias yog thawj nqaj . Thaum lub thawj nqaj dhau los ntawm lub cev, qee qhov hluav taws xob tau nqus rau hauv cov txheej txheem hu ua attenuation.
Pom zoo:
Dab tsi yog qhov kev nkag siab tsis tu ncua thiab dab tsi yog qhov loj me me qhov ntev xim tsis tu ncua zoo li qub)?
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Kev nkag siab tsis tu ncua, tseem hu ua qhov tsis sib xws, lossis qhov tshwm sim tsis tu ncua, kev nyiam tsiaj thiab tib neeg kom pom cov khoom paub zoo li muaj tus qauv zoo, qhov loj me, xim, lossis qhov chaw tsis hais txog kev hloov pauv ntawm lub kaum sab xis ntawm kev xav, nrug deb, lossis teeb pom kev zoo
Dab tsi yog qhov projection pob txha hu ua?
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Tus txheej txheem hais txog kev kwv yees kwv yees loj lossis ua rau muaj kev sib tsoo, ib yam li kev cog lus xws li kev cog qoob loo. Ob leeg tubercle thiab tuberosity xa mus rau qhov projection lossis tsoo nrog qhov roughened nto, nrog 'tubercle' feem ntau me dua li 'tuberosity'
Dab tsi yog qhov txiaj ntsig ib txwm rau PaO 2 Dab tsi yog qhov txiaj ntsig rau kev txiav txim siab qhov hnyav ntawm hypoxemia?
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Zoo li feem ntau qhov kev kho mob ib txwm muaj txiaj ntsig thiab ntau yam, lub ntsiab lus tuaj yeem sib txawv me ntsis, tab sis feem ntau cov ntsiab lus hauv qab no siv: Ua rau me me hypoxemia: PaO2 = 60 txog 79 mmHg. Qhov nruab nrab hypoxemia: PaO2 = 40 txog 59 mmHg. Hypoxemia hnyav: PaO2 <40 mmHg
Dab tsi yog qhov txawv ntawm qhov tseeb qhov pib thiab qhov sib txawv qhov pib?
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Qhov pib tsis txaus yog qhov tsawg kawg ntawm kev txhawb siab xav tau rau ib tus neeg kom pom qhov kev txhawb siab 50 feem pua ntawm lub sijhawm. Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv me tshaj hauv kev txhawb nqa uas tuaj yeem kuaj pom 50 feem pua ntawm lub sijhawm
Dab tsi yog qhov projection fibre?
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Kev kwv yees cov fibers suav nrog ob qho tib si muaj txiaj ntsig thiab muaj txiaj ntsig zoo ntawm cov hlab ntsha uas ua rau lub hlwb nrog tus txha caj qaum. Cov phiajcim fiber ntau yog cov hlab ntsha uas tsis sib xws uas tau teeb tsa hauv kab hauv qhov teeb meem dawb ib puag ncig cov teeb meem grey. Sab dorsal relays somatic sensory cov ntaub ntawv rau lub hlwb