Abstract:
The main objective of this study is to measure and assessment the radiation doses
incurred by medical staff and patients during cardiac catheterization procedures in
Alshaab teaching hospital and Ahmed Gasim teaching hospital Khartoum state -
.Sudan
A total of data patients (212) procedures divided in two groups 161 CA procedure and
51 PCI procedure was carried out in this study, patient doses was calculated with
depended patient body characteristics and exposure parameters using dose area
product (DAP) meters. The patient age was ranging from 21 to 85 years old. The
mean values of exposure parameters were 86.17±8.32KVp, 5.59±0.844mAs, the
mean duration fluoroscopy time was 6.87±2.48 mentis, the number of films per
procedure was 9.17±4.53 films respectively and the mean of dose values was
917.07±68.174mGy, all the investigations were performed in same centre and
department. The DAP values in this study was relatively lower than the previous
studies in the literature. Because they can be attributed to the use of high voltage
.(KVp), long distance of focal spot side in all examinations
While staff doses was measured at (61) procedures, (43) to diagnostic (CA) and (18)
to therapeutic percutaneous Coronary Interventional (PCI) procedure using
thermoluminsences dosimeters (TLDs) (LiF:Mg,Cu,P) at three anatomic locations
(waist, chest and hand) for main operator and the chest to the assistant operator. The
mean radiation doses to the main operator's were 0.0608±0.0356mGy (waist),
11
0.1127±0.0516mGy (chest), and 0.2125±o.1193mGy (hand) respectively and for the
assistant operator's chest was 0.0134±0.0072mGy depending on TLD method. The
results revealed that the doses received to the patient and staff higher radiation doses
during PCI procedures relative to CA procedures. Operator hand dose was most
exposed than other organs, assistant dose lower than main operator because main
operator acts a barrier between assistant and the scatter radiation according to their
.position during the procedure
The staff doses measured in this study was lower than the previous reported studies in
literature. Because attributed to technical reduction the scattering radiation in all
.examinations
