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@article{1839677,
author = {Jadczyk, Tomasz and Wolf, Jiří and Pešl, Martin and Souček, Filip and Lehar, František and Jež, Jiří and Kulík, Tomáš and Tyshchenko, Bohdan and Bělašková, Silvie and Ouředníček, Petr and Caluori, Guido and Novák, Miroslav and Stárek, Zdeněk},
article_location = {Basel},
article_number = {3},
doi = {http://dx.doi.org/10.3390/diagnostics12030612},
keywords = {computed tomography; catheter ablation; radiation},
language = {eng},
issn = {2075-4418},
journal = {Diagnostics},
title = {Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation},
url = {https://www.mdpi.com/2075-4418/12/3/612},
volume = {12},
year = {2022}
}
TY - JOUR
ID - 1839677
AU - Jadczyk, Tomasz - Wolf, Jiří - Pešl, Martin - Souček, Filip - Lehar, František - Jež, Jiří - Kulík, Tomáš - Tyshchenko, Bohdan - Bělašková, Silvie - Ouředníček, Petr - Caluori, Guido - Novák, Miroslav - Stárek, Zdeněk
PY - 2022
TI - Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation
JF - Diagnostics
VL - 12
IS - 3
SP - 1-12
EP - 1-12
PB - MDPI
SN - 20754418
KW - computed tomography
KW - catheter ablation
KW - radiation
UR - https://www.mdpi.com/2075-4418/12/3/612
N2 - (1) Background: Computer tomography (CT) is an imaging modality used in the pre-planning of radiofrequency catheter ablation (RFA) procedure in patients with cardiac arrhythmias. However, it is associated with a considerable ionizing radiation dose for patients. This study aims to develop and validate low-dose CT scanning protocols of the left atrium (LA) for RFA guidance. (2) Methods: 68 patients scheduled for RFA of atrial fibrillation were sequentially assigned to four groups of ECG-gated scanning protocols, based on the set tube current (TC): Group A (n = 20, TC = 33 mAs), Group B (n = 18, TC = 67 mAs), Group C (n = 10, TC = 135 mAs), and control Group D (n = 20, TC = 600 mAs). We used a 256-row multidetector CT with body weight-dependent tube voltage of 80 kVp (<70 kg), 100 kVp (70–90 kg), and 120 kVp (>90 kg). We evaluated scanning parameters including radiation dose, total scanning procedure time and signal-to-noise ratio (SNR). (3) Results: The average effective radiation dose (ED) was lower in Group A in comparison to Group B, C and D (0.83 (0.76–1.10), 1.55 (1.36–1.67), 2.91 (2.32–2.96) and 9.35 (8.00–10.04) mSv, p < 0.05). The total amount of contrast media was not significantly different between groups. The mean SNR was 6.5 (5.8–7.3), 7.1 (5.7–8.2), 10.8 (10.1–11.3), and 12.2 (9.9–15.7) for Group A, B, C and D, respectively. The comparisons of SNR in group A vs. B and C vs. D were without significant differences. (4) Conclusions: Optimized pre-ablation CT scanning protocols of the LA can reduce an average ED by 88.7%. Three dimensional (3D) models created with the lowest radiation protocol are useful for the integration of electro-anatomic-guided RFA procedures.
ER -
JADCZYK, Tomasz, Jiří WOLF, Martin PEŠL, Filip SOUČEK, František LEHAR, Jiří JEŽ, Tomáš KULÍK, Bohdan TYSHCHENKO, Silvie BĚLAŠKOVÁ, Petr OUŘEDNÍČEK, Guido CALUORI, Miroslav NOVÁK and Zdeněk STÁREK. Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation. \textit{Diagnostics}. Basel: MDPI, 2022, vol.~12, No~3, p.~1-12. ISSN~2075-4418. Available from: https://dx.doi.org/10.3390/diagnostics12030612.
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