| dc.description.abstract | Coronary Angiography (CA) and Percutaneous
Transluminal Coronary Angioplasty (PTCA) are
catheterization imaging procedures involving
high radiation doses. The aim of this study was to
measure the absorbed dose receives in the axillary
region among cardiologists who wear a lead apron
with inappropriate size. This was a quantitative
cross-sectional study, which includes the date from
40 PTCAs and 80 CAs. The data were collected
from National Hospital of Sri Lanka (NHSL). Two
electronic pocket dosimeters were placed in the
axillary area (inside and outside the lead apron)
of the cardiologist, which was used to measure
scattered and leakage radiation during imaging
procedures. PTCA and CA median axillary dose
without and with shielding was 25.84 μSv, 0.64
μSv and 9.37 μSv, 0.64 μSv. A significant difference
was observed between with and without
shielding. First operator will receive annum dose
with respect to the without and with shielding to
axilla 13.88 mSv and 0.85 mSv respectively, 93.9%
of reduction was observed. Among PTCA and CA
procedures, a significant association was found
between exposure time and axillary dose, DAP
and axillary dose with and without shielding
and also between DAP and BMI. No significant
association was observed among PTCA and CA
procedures between BMI and axillary dose with
or without shielding.Shielding of the axillary area
will reduce the radiation dose significantly to the
first operator and furthermore the DAP, exposure
time and patient’s BMI are the main factors that
contribute to the radiation dose to the axillary
region. | en_US |
