Patient dosimetry in abdominal arteriography

Patient dosimetry in abdominal arteriography

Kemerink, G.J.
Kicken, P.J.H.
Schultz, F.W.
Zoetelief, J.
van Engelshoven, J.M.A.
Centrum voor Stralingsbescherming en Dosimetrie TNO

1999

This study aims at accurate quantification of x-ray exposure and effective dose to the patient in abdominal arteriography. Using an automatic monitoring system, all relevant exposure parameters were determined during 172 abdominal arteriographies. Common projections were extracted for a 'normal' reference group of procedures and used in Monte Carlo calculations of dose-area product to organ dose conversion coefficients. Dose-area product, organ doses and effective dose were quantified for intravenous and intra-arterial procedures. The large data sets describing exposure could be condensed to a set of 28 common views. New coefficients to convert dose-area product to organ equivalent dose and effective dose were calculated for nine views contributing approximately 80% to the total dose-area product. The average dose-area product was 32 Gy cm2 in intravenous procedures and 47 Gy cm2 in intra-arterial procedures. The corresponding average effective doses to the patient were 4 mSv and 6 mSv respectively (range 2-12 mSv, actual value depending on procedure type and gender). It is concluded that automatic monitoring of x-ray exposure parameters, complemented by the calculation of Monte Carlo organ dose conversion coefficients, is a feasible and promising approach to accurate dosimetry of complex arteriographic procedures.

Biology
Abdominal radiography
Arteriography
Dosimetry
Radiobiology
Reference value
System analysis
Aorta, Abdominal
Aortography
Biophysics
Female
Humans
Male
Monte Carlo Method
Radiation Dosage
Radiometry

http://resolver.tudelft.nl/uuid:ab16238c-fc0f-4a0d-ace7-f2b7f07df68c

https://doi.org/10.1088/0031-9155/44/5/002

235015

0031-9155

Physics in Medicine and Biology, 44 (5), 1133-1145

article