Yuav ua li cas DSA ua haujlwm

Lub hauv paus ntsiab lus ntawm DSA imaging yog faib cov angiographic X-ray fluorescence dluab ntawm cov tshuaj ntsuam xyuas yam tsis muaj kev txhaj tshuaj ntawm contrast agent thiab tom qab txhaj tshuaj ntawm contrast agent, ntsig txog, tom qab tau txais los ntawm cov duab intensifier, thiab ces scanning nrog ib tug high-zoo. daws teeb meem TV lub koob yees duab raj los faib cov duab rau hauv Ntau lub me me squares yog tsim rau hauv matrix los ua ib daim duab video uas muaj pixels hauv cov squares me. Tom qab logarithmic amplification thiab analog / digital hloov dua siab tshiab, cov duab digital tau tsim thiab khaws cia nyias, thiab tom qab ntawd cov khoom siv hluav taws xob hauv computer ua haujlwm thiab rho tawm cov ntaub ntawv digital ntawm ob daim duab, thiab cov cim sib txawv ntawm cov txiaj ntsig sib txawv tau txais, uas tau hloov dua siab tshiab rau hauv. zoo tib yam analog teeb liab los ntawm kev sib piv kev txhim kho thiab kev hloov pauv digital / analog. Cov pob txha, cov leeg thiab lwm cov nqaij mos raug tshem tawm, tsuas yog Cov duab rho tawm ntawm cov duab ntawm cov hlab ntsha yooj yim yog tso tawm ntawm lub monitor.

Cov duab ua tiav los ntawm DSA ua rau cov duab ntawm cov hlab ntsha pom tseeb thiab muaj kev nyab xeeb dua thaum muaj kev phais.