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  • Je izpostavljenost bolnika sevanju višja pri računalniški tomografski angiografiji kot pri digitalni subtrakcijski angiografiji medeničnih in perifernih arterij?
    Kuhelj, Dimitrij ...
    With the introduction of CT arteriography (CTA) of peripheral arteries, based on multislice technique, X-ray exposure of patients due to large scaned areas became an issue. Effective doses of ... patients during CTA or DSA of pelvic arteries and arteries of lower limbs were compared. Materials and methods. In our study, dose comparison between 57 patients, who underwent CTA and 135 patients, who underwent DSA (digital subtraction angiography) of pelvic and lower limb arteries in the year 2004 was compared. In 98 patients with DSA additional projections were needed. CTDI (CT dose index on volume) was recorded after CTA on 16-slice scanner (Sensation, Siemens, Erlangen, Germany), whereas dose-area product (DAP) was recorded on DSA (Multistar, Siemens, Erlangen, Germany). Effective doses (E) were calculaculated from CTDIand DAP. Results. The average E in CTA was 5,2 mSv (4.9-6.1) compared to 3,7 mSv (0.4-15.5) in DSA. Conclusion. The average E during CTA was higher than in patients with DSA, but only if no lateral pelvic projection was neededon DSA. Causes for large variability of effective doses in patients withDSA should be discovered and variability diminished by optimizing the technique.
    Vir: Slikovne metode v odkrivanju in zdravljenju žilnih bolezni (Str. 328-333)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2005
    Jezik - slovenski
    COBISS.SI-ID - 19780057

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