Cov ntsiab cai ntawm kev thaij duab photoacoustic

Cov ntsiab cai ntawm kev thaij duab photoacoustic

Photoacoustic Imaging (PAI) yog ib txoj kev siv tshuab thaij duab kho mob uas sib xyaw ua kekev kho qhov muagthiab acoustics los tsim cov teeb liab ultrasonic siv kev sib cuam tshuam ntawmlub teebnrog cov ntaub so ntswg kom tau txais cov duab ntaub so ntswg uas muaj kev daws teeb meem siab. Nws yog siv dav hauv kev kho mob biomedical, tshwj xeeb tshaj yog hauv kev kuaj mob qog nqaij hlav, kev thaij duab hlab ntsha, kev thaij duab tawv nqaij thiab lwm yam.

Lub Ntsiab Cai:
1. Kev nqus lub teeb thiab kev nthuav dav ntawm lub zog cua sov: - Kev thaij duab photoacoustic siv cov nyhuv cua sov uas tsim los ntawm kev nqus lub teeb. Cov molecules pigment hauv cov ntaub so ntswg (piv txwv li, hemoglobin, melanin) nqus cov photons (feem ntau yog lub teeb ze-infrared), uas hloov mus ua lub zog cua sov, ua rau qhov kub hauv zos nce siab.
2. Kev nthuav dav ntawm cua sov ua rau muaj ultrasound: - Kev nce kub ua rau muaj kev nthuav dav me me ntawm cov ntaub so ntswg, uas tsim cov nthwv dej siab (piv txwv li ultrasound).
3. Kev tshawb nrhiav ultrasonic: - Cov nthwv dej ultrasonic tsim tawm hauv cov ntaub so ntswg, thiab cov teeb liab no tom qab ntawd tau txais thiab kaw los ntawm ultrasonic sensors (xws li ultrasonic probes).
4. Kev tsim kho dua tshiab ntawm cov duab: lub teeb liab ultrasonic uas tau sau los ntawm kev suav thiab ua tiav los tsim kho dua tshiab cov qauv thiab kev ua haujlwm ntawm cov ntaub so ntswg, uas tuaj yeem muab cov yam ntxwv ntawm kev nqus ntawm cov ntaub so ntswg. Cov txiaj ntsig ntawm kev thaij duab photoacoustic: Kev sib piv siab: Kev thaij duab Photoacoustic vam khom cov yam ntxwv ntawm kev nqus lub teeb ntawm cov ntaub so ntswg, thiab cov ntaub so ntswg sib txawv (xws li ntshav, rog, leeg, thiab lwm yam) muaj peev xwm sib txawv los nqus lub teeb, yog li nws tuaj yeem muab cov duab sib piv siab. Kev daws teeb meem siab: Siv qhov kev daws teeb meem siab ntawm ultrasound, kev thaij duab photoacoustic tuaj yeem ua tiav qhov tseeb ntawm kev thaij duab millimeter lossis txawm tias sub-millimeter. Tsis-invasive: Kev thaij duab Photoacoustic tsis yog kev cuam tshuam, lub teeb thiab suab yuav tsis ua rau cov ntaub so ntswg puas tsuaj, tsim nyog heev rau kev kuaj mob tib neeg. Kev muaj peev xwm thaij duab tob: Piv nrog kev thaij duab kho qhov muag ib txwm muaj, kev thaij duab photoacoustic tuaj yeem nkag mus rau ntau centimeters hauv qab daim tawv nqaij, uas tsim nyog rau kev thaij duab cov ntaub so ntswg tob.

Daim Ntawv Thov:
1. Kev thaij duab ntawm cov hlab ntsha: - Kev thaij duab photoacoustic tuaj yeem ntes tau cov khoom siv nqus lub teeb ntawm hemoglobin hauv cov ntshav, yog li nws tuaj yeem qhia tau qhov tseeb ntawm cov qauv thiab cov pa oxygen ntawm cov hlab ntsha rau kev saib xyuas microcirculation thiab txiav txim siab cov kab mob.
2. Kev kuaj pom qog nqaij hlav: - Angiogenesis hauv cov nqaij hlav feem ntau muaj ntau heev, thiab kev thaij duab photoacoustic tuaj yeem pab kuaj pom qog nqaij hlav thaum ntxov los ntawm kev kuaj pom qhov tsis zoo hauv cov qauv ntawm cov hlab ntsha.
3. Kev thaij duab ua haujlwm: - Kev thaij duab photoacoustic tuaj yeem ntsuas qhov kev muab pa oxygen ntawm cov ntaub so ntswg los ntawm kev kuaj pom qhov concentration ntawm oxygenation thiab deoxyhemoglobin hauv cov ntaub so ntswg, uas yog qhov tseem ceeb heev rau kev saib xyuas kev ua haujlwm ntawm cov kab mob xws li mob qog noj ntshav thiab kab mob plawv.
4. Kev thaij duab ntawm daim tawv nqaij: - Vim tias kev thaij duab photoacoustic rhiab heev rau cov ntaub so ntswg sab nraud, nws tsim nyog rau kev kuaj pom mob qog nqaij hlav thaum ntxov thiab kev tshuaj xyuas qhov tsis zoo ntawm daim tawv nqaij.
5. Kev thaij duab lub hlwb: Kev thaij duab photoacoustic tuaj yeem tau txais cov ntaub ntawv ntws ntawm cov ntshav hauv lub hlwb yam tsis muaj kev phais rau kev kawm txog cov kab mob hauv lub hlwb xws li mob stroke thiab qaug dab peg.

Cov teeb meem thiab kev loj hlob ntawm kev thaij duab photoacoustic:
Lub teeb cikev xaiv: Lub teeb nkag mus rau ntawm cov wavelengths sib txawv yog txawv, yuav ua li cas xaiv qhov sib npaug ntawm qhov wavelength thiab qhov tob nkag mus yog qhov nyuaj. Kev ua cov teeb liab: Kev tau txais thiab ua cov teeb liab ultrasonic xav tau cov algorithms ceev thiab raug, thiab kev txhim kho cov thev naus laus zis rov tsim dua duab kuj tseem ceeb heev. Kev thaij duab ntau hom: Kev thaij duab Photoacoustic tuaj yeem ua ke nrog lwm cov qauv thaij duab (xws li MRI, CT, ultrasound imaging) los muab cov ntaub ntawv biomedical ntau dua.

Kev thaij duab photoacoustic yog ib qho thev naus laus zis tshiab thiab muaj ntau yam kev ua haujlwm biomedical imaging, uas muaj cov yam ntxwv ntawm kev sib piv siab, kev daws teeb meem siab thiab tsis ua rau mob. Nrog rau kev txhim kho thev naus laus zis, kev thaij duab photoacoustic muaj kev siv dav hauv kev kuaj mob, kev tshawb fawb txog biology yooj yim, kev tsim tshuaj thiab lwm yam.