ABSTRAKSampai sekarang mamografi merupakan program skrining utama untuk deteksi dini
kanker payudara khususnya untuk kaum wanita, akan tetapi pemberian informasi
tentang dosis yang diterima pasien masih jarang dilakukan. Padahal payudara
merupakan salah satu organ sensitif terhadap radiasi pengion karena mampu
menginduksi kanker. Sehingga perlu dilakukan estimasi dosis pasien pada
pemeriksaan mamografi untuk mengetahui nilai dosis yang diterima oleh payudara.
Estimasi dosis dilakukan dengan menggunakan perhitungan Mean Glandular Dose
(MGD) pada mamografi Computed Radiography (CR). Dengan melakukan koreksi
terhadap kualitas citra pada prosentase (%) glandularity, yaitu prosentase (%)
glandularity 25-49% dan 1-24%. Nilai prosentase (%) glandularity dievaluasi oleh
radiolog. Dari hasil estimasi didapatkan total rerata MGD pada seluruh proyeksi
pemeriksaan payudara 1,65 mGy pada rerata ketebalan kompresi 48,85 mm. MGD
yang diperoleh masih di bawah limit berdasarkan rekomendasi FDA, ACR dan
MQSA yaitu < 3 mGy per eksposi pada ketebalan 45 mm. MGD dipengaruhi oleh
kombinasi antara ketebalan kompresi, kV, HVL dan prosentase (%) glandularity.
ABSTRACTCurrently, mammography is the primary screening program for breast cancer early
detection for women, but information about the doses received by patient are still
rare. Breast is a sensitive organ to ionizing radiation since it can include cancer.
Therefore it is necessary to estimate the patient dose during mammography
examinations. Estimated doses calculations were performed using in term of mean
glandular dose (MGD) using Mammography Computed Radiography (CR). Image
quality correction was done based on the most frequent percentage (%) glandularity
from all samples, which are 25-45% and 1-24% glandularity. Percentage (%)
glandularity was evaluated by radiologist. Estimated of total average MGD all off
projection at the breast examination 1,65 mGy on the mean compression of thickness
48,85 mm. Mean Glandular Dose obtained during measurement are still under
recommendation of the FDA, ACR and MSQA which is < 3 mGy per eksposure.
From measurement and calculation, the MGD is influenced by compression of
thickness, kV, HVL and percentage (%) glandularity.
S1299-Eunike Serfina Fajarini.pdf :: Unduh