I-CT ukuskena ukubona i-coronary artery disease
Sibanzi
Kwi-coronary artery disease (CAD), i- atherosclerosis ibangela ukuba i-articum edibeneyo, i-elastic stretch of coronary arteries ibe nzima, iyanamathele kwaye ivuvuke ngenxa ye " plaque ," ezipaka i-calcium, amafutha kunye neeseli ezivuthayo ezingaqhelekanga. Phakathi kwezinye izinto, oku kuthetha ukuba ukuba unayo i-calcium edibeneyo kwimibhobho yakho ye-coronary, ubuncinane ubuncinane beCAD.
Kwiminyaka emininzi, oogqirha bayazi ukuba ezinye iinkcukacha ze-computing ze-tomography (CT) zikwazi ukubona nokulinganisa i- coronary artery calcium deposits. (Amagama anikezelwa kwiintlobo ezahlukeneyo ze-CT scans zingangokudideka, kodwa nayiphi na i-scan scan esetyenziselwa ukulinganisa i-coronary artery calcium ngokuqhelekileyo ibhekiselwa nje ngokuthi "i-calcium scan.")
U vavanyo lwenziwa njani
Ukuba neengqungquthela ze-calcium zifana nokuba ne-x-ray. Uza kulala etafileni ye-x-ray, iintambo ziya kufakwa kwisifuba sakho ukurekhoda i-ECG kunye netafile ziza kutshintsha kwi-scanner. Uya kucelwa ukuba ubambe umoya wakho ngomzuzu okanye kunjalo, ukuze umfanekiso ocacileyo ufumaneke. Umfanekiso we-x-ray okhokeleyo uza kuhlolisiswa kwi-telltale "iindawo ezimhlophe" ezibonisa i-calcium idilesiyamu kwimithambo ye-coronary, kwaye inani le-calcium liya kulandelwa kumanqaku.
Ukutolika iCalcium Score
Ixabiso le-calcium ekhoyo kwimibhobho ye-coronary ilandelwe ngokwemilinganiselo ye-Agatson, ngale ndlela:
- 0 - ayikho isifo esichongiweyo
- 1 ukuya kwi-99 - izifo ezinomzimba
- 100 ukuya ku-399 - izifo ezilinganayo
- 400 okanye ngaphezulu - isifo esibi
Ukusetyenziswa
Kuye kwaba neengxabano ezininzi malunga nokuba ngubani omele abe ne-calcium scans kunye nendlela iziphumo ezifanele zisetyenziswe ngayo. Ingxabano iphakame kakhulu ngenxa yokuba, ekuqaleni, oogqirha babesetyenziselwa ukusebenzisa izicatshulwa ukukhupha izigulane zeCAD eziphazamisayo; oko kukuthi, ngenxa yemingcipheko encinci kwimibhobho yecononary engadinga ukunyangwa ngokugquma .
Noko ke, kuvela ukuba i-calcium scans ayilunganga ngokukhethekileyo kule njongo. Izigulane ezininzi ezinamazinga aphezulu e-calcium azinayo i-block blockages - nangona i-CAD eninzi. Ngaphambi kokuqala, i-calcium scans yaqhuba izigulane ezininzi ukuba zibe ne- catheterizations ye-cardiac engadingekile, kwaye xa i-catheterizations ingabonakali, i-calcium scans (ingafanelekanga) ibonwa ngokuba "yimpembelelo yamanga."
Namhlanje, oogqirha bayaqonda ukuba inzuzo ephezulu yesikhala se-calcium ayiyikufumana indawo ezithile zokucima, kodwa kunoko ukuchonga ukuba ngaba isiguli sinakho i-CAD okanye ukuba kunjalo, ukuba uqikelele ubunzima bayo. Le ngcaciso ingaba luncedo kakhulu ekunqumeni ukuba unobundlobongela obuya kulandela ukuguqulwa komngcipheko.
Mngcipheko
Umngcipheko wokwenene wokutshulwa kwe-calcium ukubonakaliswa kwimizila emisebe, eyenzekayo nayiphi na uvavanyo lwe-x-ray. Isixa sombane ofumana umntu nge-calcium ukuskena kuyahluka ngokuxhomekeke kwisixhobo esisetyenzisiweyo, kwaye phambi kokuba uvumele ukuvavanya, kufuneka ucele lebhu ukuba uza kufumana kangakanani ukukhanya kweemitha kwindawo leyo. Inani elifanelekileyo lemitha kunye ne-calcium scan 2 ukuya kwi-3 mSv (millisievert), elilingana neenyanga ezi-8 ukuya kwezi-12 zemizila emzimbeni.
Abaviwa
Ukusetyenziswa kwe calcium ukujonga ngokuxhomekeka kuxhomekeke kwinqanaba lakho lomngcipheko we-CAD. Unokuqikelela ngokulula uqobo lwenqanaba lakho lomngcipheko (kwiintlobo eziphantsi, eziphakathi okanye eziphakamileyo) ngokuphendula imibuzo embalwa elula. Ukulinganisela umngcipheko wakho wesifo senhliziyo, hamba apha .
Abantu abakwizinga elincinci lomngcipheko banako ukuhlawulela okuncinci ukuba bahlaziye ngokufanelekileyo ukuba okwangoku banconywa ukuba abanalo ukuskena kwe-calcium.
Abantu abakwizinga eliphezulu lokwenza umngcipheko banakho ukuphakama okuphezulu okuba ne-calcium ebonakalayo encinci eyenziwa ngokuskena.
Bantu abantu abakwinqanaba elijongene nomngcipheko onokuzuza kwi-calcium scans.
Laba bantu ngokuqhelekileyo babonakala bephilile, ngaphandle kwemibandela emibini okanye emingciphekweni enokuthi ibe "ngumda wendawo" engavamile. Ukugqiba ukuba ngaba uguquko olushukunyisayo okanye uthabathe imimiselo okanye i-aspirin isifo esingaxhamliyo sinokuba nzima kubantu abanjalo. Apha, i-scan calcium ingaba luncedo kakhulu. Ukuba umlinganiselo wekhalsiyumu ungqinelana okanye uphakamileyo, koko i-CAD esebenzayo isele ikhona kwaye aba bantu bafanele baqikelele ukuba bangabungozi obuphezulu (nangengenqanaba eliphakathi). Amanyathelo ajongene nomngcipheko wokuguqulwa kwezinto kufuneka athathwe, ngokuqhelekileyo afaka i-statins ne-aspirin. Ngakolunye uhlangothi, ukuba umlinganiselo wekhalsiyamu uphantsi, akukho CAD encinci okanye akukho CAD inokuthi ibekho kwaye ukuguqulwa komngcipheko ongathintekiyo (njengokuphucula ukhetho lokuphila) kuya kuba nengqiqo. Funda apha ukuze uthole ulwazi oluninzi malunga nokulawula izifo zengozi yeengqondo .
Umgca ophantsi, njengalo naluphi na uvavanyo, kukuba ukuba iziphumo ze-scan calcium ziya kuba luncedo ekukhombiseni unyango okanye ukuziphatha kwakho, ngoko kuyilungileyo ukucinga ukuba unolu vavanyo. Kungenjalo, yiphakamise.
Imithombo:
Agatston AS, uJanowitz WR, Hildner FJ, et al. Ukukhishwa kwe-coronary artery calcium usebenzisa i-ultrafast computed tomography. J Am Coll Cardiol 1990 Mar 15; 15 (4): 827-32
IGreenland, P, uBowowow, RO, Brundage, BH, et al. I-ACCF / I-AHA 2007 ingxelo yeengcali zengcali ye-coronary artery calcium yokufaka ingxelo ngokumalunga ne-tomography kwi-global cardiovascular risk assessment kunye nokuvavanya izigulane ezineentlungu zesifuba: ingxelo ye-American College of Cardiology Foundation Clinical Expert Consensus Task Force (i-ACCF / AHA Committee of Writing) Ukuhlaziya i-2000 ye-Expert Consensus Document e-Electron Beam Computed Tomography) eyenziwa ngokubambisana noMbutho we-Atherosclerosis Imaging and Prevention kunye noMbutho we-Cardiovascular Computed Tomography. J Am Coll Cardiol 2007; 49: 378.
I-Radiology Exposure kwi-X-ray Examinations. Radiologyinfo.com (i-American College of Radiology kunye neRadioological Society yaseNyakatho Melika.