TY - JOUR
T1 - Effective dose analysis of three-dimensional rotational angiography during catheter ablation procedures
AU - Wielandts, Jean-Yves
AU - Smans, Kristien
AU - Ector, Joris
AU - De Buck, Stijn
AU - Heidbüchel, H
AU - Bosmans, Hilde
N1 - Score = 10
PY - 2010/2/7
Y1 - 2010/2/7
N2 - We designed and implemented a detailed dose-estimating algorithm for cardiac C-arm CT (3DRA), based on the PCXMC software application for single shot x-ray dose calculation. 3DRA is associated with overall effective doses of 5.5 ± 1.4 mSv (ICRP 60) to 6.6 ± 1.8 mSv (ICRP 103). The need for 3D cardiac reconstruction depends on medical judgement, weighing benefits against radiation dose. However, the effective dose of 3DRA compares favourably to conventional cardiac CT. Moreover, per-ablation imaging has many logistical and image integration advantages. Manual collimation by the operator can reduce effective dose by more than 20% and is therefore imperative. BMI is the only reliable predictor of effective dose for the evaluated system. The effective dose paradoxically decreases for increasing patient calibre due to the system’s technical specifications. Unfortunately, no simple dose conversion coefficient based on DAP values is possible for current 3DRA.
AB - We designed and implemented a detailed dose-estimating algorithm for cardiac C-arm CT (3DRA), based on the PCXMC software application for single shot x-ray dose calculation. 3DRA is associated with overall effective doses of 5.5 ± 1.4 mSv (ICRP 60) to 6.6 ± 1.8 mSv (ICRP 103). The need for 3D cardiac reconstruction depends on medical judgement, weighing benefits against radiation dose. However, the effective dose of 3DRA compares favourably to conventional cardiac CT. Moreover, per-ablation imaging has many logistical and image integration advantages. Manual collimation by the operator can reduce effective dose by more than 20% and is therefore imperative. BMI is the only reliable predictor of effective dose for the evaluated system. The effective dose paradoxically decreases for increasing patient calibre due to the system’s technical specifications. Unfortunately, no simple dose conversion coefficient based on DAP values is possible for current 3DRA.
KW - 3DRA
KW - patient dose
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_102275
UR - http://knowledgecentre.sckcen.be/so2/bibref/6474
U2 - 10.1088/0031-9155/55/3/001
DO - 10.1088/0031-9155/55/3/001
M3 - Article
VL - 55
SP - 563
EP - 579
JO - Physics in Medicine and Biology
JF - Physics in Medicine and Biology
SN - 0031-9155
IS - 3
ER -