Naslov
Patient and staff dosimetry in interventional cardiology in Croatia

Autori
Faj, Dario ; Steiner, Robert ; Trifunović, Dejan ; Faj, Zlatan ; Kasabašić, Mladen ; Brnić, Zoran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Regional and global aspects of radiation protection / Milu, Constantin - Brasov : International Radiation Protection Association (IRPA), 2007, 160-161

Skup
IRPA Regional Congress for Central and Eastern Europe

Mjesto i datum
Brašov, Rumunjska, 24.09.2007. - 28.09.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
dosimetry; interventional cardiology; patient; staff

Sažetak
Although the radiation protection law in Croatia insists on its existence, there is still no detailed framework for the estimation of patient doses and establishment of the national diagnostic reference levels in interventional cardiology (IC). At the University hospital of Osijek the IC was recently implemented. To investigate possible problems in clinical practice we measured absorbed doses of the staff and patients during coronary angiography (CA) and the percutaneous transluminal coronary angioplasty (PTCA) procedures and compared them with published data and international standards. To the best of our knowledge this paper presents the first results of patient and staff dose measurements in IC in Croatia. All patients undergoing CA or PTCA procedures, for a month, were included in the study. Patients’ doses are expressed in terms of dose area product (DAP) per procedure and personal doses are measured using electronic personal dosimeters and expressed in terms of effective dose per procedure. Also radiochromic films were used in complicated cases. The patients’ DAPs ranged from 2.6 Gycm2 to 207.6 Gycm2 (average of 58.8 Gycm2) during CAs, and from 61.2 Gycm2 to 222.5 Gycm2 (average of 119 Gycm2) during PTCAs. The cardiologists’ effective doses ranged from 0.4  Sv to 2  Sv and from 0.4  Sv to 4.4  Sv for CA and PTCA procedures, respectively. Average doses were 0.92  Sv and 2.04  Sv for CA and PTCA procedures, respectively. The nurses’ doses were significantly lower. Patients’ and personal doses during CAs and PTCAs at the University Hospital of Osijek are in good agreement with the published ones ; moreover, personal doses are in the lower part of the range of the reported doses. In the next future, measurements will be repeated in a few other centres in Croatia. The DAP meter measures the entire dose received by a patient at the collimator level. Consequently, the measured value does not take into account that the beam is passing through the different parts of the skin. Possible distributions of the dose across the patient’ s skin are examined using radiochromic films placed under the patient during procedures. In all of the radiochromic films taken, different patterns of dose distribution can be recognized. Maximum doses in points extracted from the films immediately after procedures did not exceed the value of 1 Gy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kliničke medicinske znanosti

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