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Evaluation of cancer risk of the patients undergoing coronary angiography in Yazd, Iran
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F. Bouzarjomehri   , V. Tsapaki |
| , bouzarj_44@ssu.ac.ir |
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Abstract: (12659 Views) |
| Background: Coronary angiography is a
commonly performed diagnostic procedure with life
saving benefits for the patient. However, this
procedure involves relatively high radiation dose. The
purpose of this study was to determine the average
effective dose of patients undergoing coronary
angiography and to estimate the associated radiation
risk in terms of fatal malignancy. Materials and
Methods: Radiation doses received by 103 patients
who underwent coronary angiography (CA) at one
hospital of Yazd province in Iran were measured in
terms of Kerma Area Product (KAP). KAP values were
then used to determine the effective dose and the
organ doses using the NRPB-S262 conversion factors
and to estimate the radiation cancer risk based on
the population averaged probability coefficients given
in ICRP-60 and BEIR-VII report. Results: A mean KAP
value was found to be 29.15 ± 16.97Gy.cm2 and the
estimated mean values of effective dose was 5.0 ±
3.18mSv. The dose of lung, esophagus, bone
marrow, skin, stomach and female breast were
24.99±14.93 mSv, 14.01±9.47 mSv, 3.72±2.61
mSv, 2.9±1.8 mSv, 2.17±1.62 mSv and 1.46±0.32
mSv, respectively. The estimated total annual collective
dose and caput dose were 17.52 man-Sv and
0.018mSv respectively. The frequency of examinations
per 1000 population in Yazd was 3.5 which is
lower than UK and the health care level I countries.
Taking into account the ICRP risk factors, radiation
dose arising from CA examinations could lead to 239
fatal cancers per million cases. Conclusion: Although
the mean values of effective dose found in this study
was lower than most of the published results, however
CA examinations should be justified. Iran. J.
Radiat. Res., 2010 8 (3): 161-167 |
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| Keywords: Coronary angiography, Kerma-area product, effective dose, radiation risk. |
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Full-Text [PDF 259 kb]
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Type of Study: Original Research |
Subject:
Medical Physics
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