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Gradient Coil rau MRI

Lus piav qhia luv luv:

Qhov loj tuaj yeem kho raws li cov neeg siv khoom xav tau.


  • Gradient teb zog:

    25 mT / m

  • Gradient linearity:

    5%

  • Lub sijhawm nce:

    ≥0.3ms

  • Hloov tus nqi:

    ≥80mT/m/ms

  • Product Detail

    Khoom cim npe

    Khoom Taw Qhia

    Nyob rau hauv MRI scan system, kev ua haujlwm ntawm gradient coil yog qhov tseem ceeb kom paub txog spatial encoding. Thaum luam theej duab cov duab, X, Y, thiab Z peb-txoj kev gradient coils ua haujlwm ua ke los ua cov ntawv xaiv, zaus encoding thiab theem encoding feem. Thaum tam sim no dhau los ntawm cov coils no, qhov chaw sib nqus sib nqus yog tsim. Qhov no gradient teb me ntsis distorts lub ntsiab magnetic teb nyob rau hauv ib tug kev kwv yees tus qauv, ua rau lub resonance zaus ntawm protons txawv nyob rau hauv raws li txoj hauj lwm ntawm txoj hauj lwm. Lub luag haujlwm tseem ceeb ntawm gradients, yog li ntawd, yog tso cai spatial encoding ntawm MR teeb liab. Gradient coils kuj tseem ceeb heev rau ntau yam "physiologic" cov txheej txheem, xws li MR angiography, diffusion, thiab perfusion imaging.

    Nyob rau tib lub sijhawm, gradient coil tseem muaj lub luag haujlwm rau kev ua haujlwm ntawm shimming thiab anti-eddy tam sim no.

    Peb lub tuam txhab muab pav ca-phaj gradient coils nrog kev ua tau zoo, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev siv.

    Los ntawm cov qauv kev pom, lub vaj huam sib luag gradient no muaj X, Y, Z peb-txoj kev gradient coils, yooj yim rau kev txuas, thiab nws tuaj yeem nruab nrog cov dej txias, uas tuaj yeem ua kom txias txias gradient coils thiab ua rau cov duab. ruaj khov dua;

    Nws tseem tuaj yeem tsim los ua ib qho kev tiv thaiv gradient coil kom txo tau qhov eddy tam sim no los ntawm qhov chaw. Vim tias txoj hauv kev zoo tshaj plaws los tswj cov eddy tam sim no yog los tiv thaiv kev tsim cov eddy tam sim no ua ntej. Qhov no yog qhov kev txhawb siab los txhim kho active shielding (self-shielding) gradients; tam sim no nyob rau hauv lub shielding kauj yog siv los khiav nyob rau hauv lub opposite kev taw qhia mus rau lub imaging gradient kauj kom txo eddy tam sim no. Cov gradient coil ua nyob rau hauv txoj kev no yog txhim khu kev qha thiab ruaj khov.

    Technical Parameters

    1. Gradient zog: 25mT/m

    2. Gradient linearity: <5%

    3. Lub sij hawm nce: ≥0.3ms

    4. Hloov tus nqi: ≥80mT/m/ms

    Qhov loj tuaj yeem kho raws li cov neeg siv khoom xav tau


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