Kodi mumateteza bwanji thupi lanu kuchokera ku radiation nthawi ya ct

Kumvetsetsa momwe CT Scans amagwiritsa ntchito radiation

Pachimake, a Scanner Scanner imagwira ntchito pophatikiza ukadaulo wa X-ray wokhala ndi makompyuta am'makompyuta. Mosiyana ndi X-ray yomwe imagwira chithunzi chimodzi chosalala, chosakanizira cha CT chimazungulira chubu ndi zojambulazo mozungulira wodwalayo, zithunzi zingapo zokhala ndi gawo limodzi. Magawo awa amapangidwanso ndi makompyuta amphamvu kwambiri pazithunzi za 2d zomwe zimafotokozedwa mwatsatanetsatane ndi mafupa 3D a mafupa, mitsempha yamagazi, minofu yofewa, ndi ziwalo. Ma radiation a Wining omwe amagwiritsidwa ntchito ndi CT Scanner ali ndi mphamvu zokwanira kudutsa thupi ndikupanga zithunzi izi, komanso zimanyamulanso kuthekera kolumikizana ndi DELARARARD DNA.

Kuchuluka kwa radiation yoperekedwa ndi scanner yoyesedwa ku milisiterts (MSV). Mlingo umasintha kwambiri kutengera gawo la thupi losakanizidwa ndipo protocol yomwe imagwiritsidwa ntchito:

• Mutu ct: nthawi zambiri 1-2 msv

• Chifuwa CT: Nthawi zambiri 5-7 msv

• Mimba / Pelvis Ct: Nthawi zambiri 7-10 msv

• Coronary Ct Angiograph: imatha kuyambira 3-15 msv kutengera protocol ndi ukadaulo

Kuti mumvetse izi, munthu wamba ku United States amalandila pafupifupi 3 msv ​​chaka chilichonse zakubadwa ma radiation monga radion, rays michere, ndi michere m'nthaka. Njira imodzi yam'mimba yamimba, motero, imapereka mankhwala ofananira ndi zaka zingapo zakufa. Pomwe chiopsezo cholumikizidwa ndi diannastic imodzi Ct Scanner Scan nthawi zambiri amawoneka ochepa kwambiri, makamaka akakhala otsika kwambiri, makamaka ngati kuli koyenera, mfundo yotsika kwambiri. Mfundo imeneyi imayendetsa mbali iliyonse ya chitetezo cha radiation mu maofesi a CT Scanner, onetsetsani kuti mankhwala a radiation nthawi zonse amachepetsa zifaniziro za zithunzizi.

Kuchepetsa kuwonekera kwa radiation pamaso pa CT Scan

Chitetezo chimayamba kale musanagone patebulo la CT Scanner. Njira zogwiritsira ntchito nthawi yopanga zokonzekera ndi kukonzekera ndizofunikira kuti muchepetse kuwonekera kwa radiation:

1. Kulungamitsidwa ndi Kuyenerera: Gawo lovuta kwambiri ndikuwonetsetsa kuti mayeso a CT Scanner ndiofunikiradi. Madokotala anu ndi dokotala wanu ayesa kugwiritsa ntchito bwino zopeza zolimbana ndi zoopsa za radiation. Alingalira:

• Chizindikiro Chachipatala: Kodi sikani kanthawi koyesa bwino kuti muyankhe funso lazachipatala? Kodi kusinthasintha kosinthana kwina ngati ma ultrasound kapena mar (omwe sagwiritsa ntchito radiation) kupereka chidziwitso chofunikira?

• Kulingalira M'mbuyomu: Kodi mudaganizapo zaposachedwa? Kuwunikiranso ma scans nthawi zina nthawi zina kumatha kupewa kubwereza.

• Mbiri ya Odwala: Zinthu zonga zaka, mimba, komanso mbiri yodzidziwitsa bwino kwambiri ndizofunikira. Ana ndi achinyamata achikulire nthawi zambiri amakhala ozindikira kwambiri ndi ma radiation.

2. Kuthamangitsa Protocol: Thupi lolungamitsidwa, gulu la radiology limayimitsa scanner protocol makamaka kwa inu ndi funso lanu lachipatala. Kutsindika kumeneku kumaphatikizapo:

• Scan Cifupi: Kutanthauzira kwa anatomical malo kuti asinthidwe kuti mupewe ziwalo zathupi zosafunikira.

• Kusasintha kwa masinthidwe: Katundu wamakono wa CT Scanner amakhala ndi pulogalamu yamakono (monga kuwongolera kokha komwe kumangosintha - AEC) yomwe imatulutsa radiation Madera owonda kapena malo ochepa amalandila ma radiation ochepa.

• Kvp ndi Mas Kusankha: Maukadaulo a radimal amasankha voliyumu yabwino kwambiri (KVP) ndi chubu (mas) - zoyambira za radiation mlingo - potengera kuchuluka kwa wodwalayo. Zosintha zotsika zimagwiritsidwa ntchito nthawi iliyonse yovomerezeka.

• Udictive Creanjafoni Kumanganso Malgorithms: Ichi ndi kupita patsogolo kwaukadaulo. M'malo mosemphana ndi zikhalidwe, kuyambiranso kusinthasintha kwa masamu ndi njira zochepetsera zaphokoso kuti apange zithunzi zapamwamba kwambiri kuchokera kuzomwe zimapangitsa kuti muchepetse. Opanga CT Scanner Opanga ngati omwe amapezeka pamapulatifomu monga Mecan azachipatala kwambiri. Mwachitsanzo, machitidwe apamwamba amatha kuchepetsa mlingo pofika 30-60% poyerekeza ndi njira zakale zomanganso ndikusungabe kapenanso kukonza mawonekedwe.

3. Malangizo okondweretsedwa ndi: Kuyankhulana momveka bwino ndikofunikira:

• Kuchotsa zinthu zachitsulo: zodzikongoletsera zachitsulo, zovala ndi zipper kapena ziphuphu, kapena zida zina zamankhwala zingayambitse zithunzi pazithunzi. Izi zitha kutanthauza kubwereza kobwereza, kutsitsa radiation mlingo. Kutsatira malangizo ochotsa chitsulo kumalepheretsa izi.

• Kusala kudya: Ngati mayeso anu a CT Scanner amafunikira zinthu zapa mtsempha (IV) zomwe mungafunsidweko, mutha kupemphedwa kusala kwa maola angapo zisanachitike. Ngakhale makamaka kuti achitetezo ndi mtundu, izi zimatsimikiziranso silanda mosasinthika popanda kuchedwa popanda kufooka kapena kuyenda komwe kumafuna kubwereza.

• Chizindikiro cha mimba: Ndikofunikira kwambiri kudziwitsa ukadaulo wa CT Scanner ndi dokotala ngati pali mwayi uliwonse muli ndi pakati. Pomwe mtengo wa radiation wachindunji umagundana ndi malo osangalatsa, amamwaza ma radiation amatha kufikira mbali zina za thupi. Kusamala kwapadera, kuphatikizapo n'mimba kumatchinga kapena kuthekera kobweza sinda, idzatengedwa ngati mimba ikutsimikiziridwa kapena kukayikira.

Kuteteza thupi lanu kuchokera ku radiation nthawi yanu

Mukakhala pa Tebulo la CSCANER , zomwe zikuwoneka kuti zikugwiritsa ntchito chitetezo chakuthupi komanso luso panthawi yopeza chithunzi:

1. Zotchingidwa ndi zida zamagetsi:

• Kwa ziwalo zowoneka kunja kwa munda: Izi ndizofunikira makamaka kwa odwala ndi achikulire achichepere.

• Kwa ogwira ntchito: Akatswiri aukadaulo amagwiritsa ntchito scanner kuchokera kuchipinda chotetezedwa, chotetezedwa ndi makoma otsogola komanso mawindo. Amangolowa m'chipinda chosinthira pakafunika, kuvala zovala zopangitsira ngati angakhale pafupi ndi wodwalayo pakukhazikitsa kapena jakisoni.

• Kutsogolera Aprons ndi zishango: Ngakhale osagwiritsidwa ntchito molunjika mu gawo la Scan Scan Hiclener Restictions (monga momwe angapangitse AEC),

• Collimation: Scanner Scanner imagwiritsa ntchito motsimikiza kuti apangike mtengo wa X-ray molimba kwa owunikira ndi kaduka kake kake kake kake. Izi zimachepetsa kuchuluka kwa minofu yopanda chidwi ndi chidwi cha chidwi chazomwe zimapangitsa kuti apange chiwonetsero champhamvu komanso kufalitsa.

2. Matekinore otsogola

• Kuwongolera kwa Okhathunzi Sensors imayesa kuwerengera kwa x-ray kudutsa wodwala munthawi yeniyeni pomwe chubu chimazungulira. Dongosolo limasintha nthawi yomweyo (ma) kuti ipereke ma radiation yocheperako ya chithunzi chofufuzira chilichonse komanso mawonekedwe a anatomical. Izi ndizothandiza kwambiri kuposa kugwiritsa ntchito mlingo wokhazikika, wamkulu pa scan yonse.

• Kumanganso Kumanganso (IR) Kumanganso Kumanganso Kumanganso: Izi ndi izi zazikulu popita kwaposachedwa kwambiri. Njira zoikidwiratu (zosefera kumbuyo - FBP) amafuna Mlingo wambiri wa radiation kuti mupange zithunzi zovomerezeka. IR Algorithms ntchito moyenera, kufananizira deta ya raw ndi chithunzi chowoneka bwino, kukonza phokoso komanso kusagwirizana. Makina apamwamba, monga operekedwa ndi otsogolera Ct Scanner Ogulitsa Izi zimathandiza kuti mahema ochepetsedwa (nthawi zambiri 50% kapena kupitilira apo poyerekeza ndi fbp) osapereka chidaliro chowonjezera.

• SETTRARCH CT (ALAND-ENTER CT): Njira zina zapamwamba za CT Izi zimapereka chidziwitso chowonjezera cha zinthu (mwachitsanzo, kusiyanitsa uric acid kuchokera ku calcium mu miyala impso, kapena kuchotsa fupa kuchokera pazithunzi zamitsempha). SETTRARCH CT nthawi zina imatha kusintha ma skate angapo kapena ithandizire ma protocol otsika pofotokoza zambiri kuchokera ku zopeza zokha.

• Ofufuza a Phujeni (PCD): Kuyimira m'mphepete mwa ukadaulo wa CT Scanner, PCDS kuwerengetsa zithunzi za X-ray ndikuyeza mphamvu zawo. Izi zimapereka mphamvu yayikulu ya mlingo (mlingo wapansi wa chithunzi chomwecho), kukonzanso kusintha kwa Spatine, ndikuwonjezera mphamvu zowonjezera poyerekeza ndi zowunikira zowonjezera zophatikizira. Ngakhale isanakwane, PCD-CT ikuwoneka bwino ngati masewera a masewera a ultra-otsika-mbozi.

3. Kugwirizana Kwa Odwala: Udindo wanu pa Scan ndiofunikira kwambiri pa chithunzi ndi kuchepa kwa DOSE:

• Kugwirabe: Kuyenda kulikonse mu Ct Scanner Kupeza komwe kumayambitsa kuphatikizika ndi zinthu zakale. Ngati zithunzizi sizikudziwa, sikanizo zingafunikire kubwereza, kuwunikira kuwonekera kwanu kwa radiation. Kutsatira malangizo opumira bwino (mwachitsanzo, 'Gwirani mpweya ') ndikofunikira, makamaka pachifuwa ndi m'mimba.

• Kukhazikitsa: Kuwongolera koyenera monga kuphunzitsidwa ndi katswiri wa umuwu kumatsimikizira kuti scan imakhala bwino ndikuchepetsa kufunika kobwereza zosinthana.

Nthawi zambiri mafunso

Q: Kodi ma radiation kuchokera ku Scanner owopsa?
Yankho: Mlingo wa radiation kuchokera kwa osakwatiwa, mankhwala ofunikira a CT kambiri nthawi zambiri amatengedwa kuti azikhala pachiwopsezo chochepa, makamaka kwa akulu. Ubwino wa Kuzindikira molondola nthawi zambiri kumakhala kovuta chiopsezo chochepa. Komabe, mfundo ya Alara imatsatiridwa kwambiri kuti mlingo wotsika momwe mungathere. Chiwopsezo chake ndi chochuluka, kotero kuti sizachilengedwe chosafunikira nthawi zonse zizikhala.

Q: Kodi ma radiation ochokera ku Scanner amafanana bwanji ndi zomwe akupanga?
A: Onani Gome ili pansipa kuti mufanane:

Q: Kodi ana amakhudzidwa kwambiri ndi ma radiation a CT?
Y: Inde. Ana ali ndi ma cell mofulumira komanso moyo wautali wamoyo, kutanthauza kuti pali nthawi yambiri yothetsera zojambula zozikika kuti ziwonekere. Amalandiranso mlingo wothandiza kwambiri poyerekeza ndi munthu wamkulu chifukwa cha matupi awo ocheperako amatenga zochulukirapo za radiation. Chifukwa chake, ma pt scanner protocols a ana ndiwosinthidwa moyenera ( ') pogwiritsa ntchito makonda am'munsi, Aec, ndi maluso a Aec. Kutchinjiriza kwa ziwalo zomveka ndizogwiritsidwa ntchito kwambiri.

Q: Kodi chikuchitika ndi chiyani kuti apange dikanner scanner sakhala otetezeka?
Yankho: mundawo umakhala ukutuluka nthawi zonse. Zochita zazikulu zikuphatikiza:

• Kukhazikitsidwa kwa AIRD & AI Kukhazikitsanso: Ichi ndiye chinthu chachikulu kwambiri chomwe chimakupangitsani kuti chisamaliro cha ultraine ultraine ultrase.

• Kusintha kwapamwamba kwa kusinthasintha: Makina ochulukirapo a AEC omwe amasinthana kwambiri ndi odwala.

• Spectral Ct: Kuchepetsa kufunika kwa ma scans angapo ndikuthandizira ma protocol otsika.

• Photon-kuwerengetsa CT: Kupereka kusintha kwa kusintha kwamphamvu muyezo ndi mawonekedwe.

• Zowongolera Zokhazikika & Kuvomerezeka: Malo azikhala ogwirizana ndi malire ndi mapulogalamu owongolera (mwachitsanzo, kuvomerezeka kwa acr ku US).

• Kuwunika kwa Mlingo & kutsatira: kachitidwe komwe kumangolemba ntchito ndi kutsata kwa wodwala ma radiation mlingo pamayeso angapo poganiza zopitilira muyeso.

Q: Ndiyenera kuda nkhawa za omenlera?
A: Othandizira a IV (a iVodine) kapena osinthana ndi pakamwa / rectal nthawi zina amagwiritsidwa ntchito polimbikitsa mtundu wa mafano powunikira mitsempha kapena ziwalo zina. Nthawi zambiri amakhala otetezeka, amanyamula zoopsa zosiyanasiyana (mwachitsanzo, matenda awo sagwirizana, nkhani za impso) kuposa ma radiation. Kusankha kugwiritsa ntchito mosiyana ndi kafukufukuyu, akuyeza zabwino zake pa zoopsa izi, popanda kuwunikira radiation mlingo wa CT.

Q: Kodi ndingatsimikize bwanji kuti ma CT Scanner amagwiritsa ntchito njira zochepa?
Yankho: Malo otchuka amayang'ana chitetezo cha radiation. Yang'anani:

• Kuvomerezeka: Monga kuchokera ku Americana College of Radiology (ACR) kapena matupi ofanana m'maiko ena, omwe amatsogolera kukhathamiritsa madontho okhazikika ndi kuwunika.

• Zida zamakono: Malo omwe atenga ndalama zatsopano za CT Scanner (monga zomwe zimafotokozedwa pamasamba apadera) zimatha kugwiritsa ntchito matekinoloje aposachedwa kwambiri (AEC, IR, / IR, CT).

• Ophunzitsidwa bwino: Wotsimikizika wa radioologic ukadaulo ndi akatswiri a radioloologic omwe amamvetsetsa ndikuyika mfundo za Alara molimba.

• Mlingo wazosangalatsa: Maofesi ayenera kupereka chidziwitso cha Mlingo wa mayeso awo komanso kutenga nawo mbali mu olembetsa mlingo.