Reduced Radiation Exposure Protocol during Computer Tomography
of the Left Atrium Prior to Catheter Ablation in Patients with
Atrial Fibrillation

J 2022

Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation

JADCZYK, Tomasz, Jiří WOLF, Martin PEŠL, Filip SOUČEK, František LEHAR et. al.

Basic information

Original name

Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation

Authors

JADCZYK, Tomasz, Jiří WOLF (203 Czech Republic), Martin PEŠL (203 Czech Republic, belonging to the institution), Filip SOUČEK (203 Czech Republic), František LEHAR (203 Czech Republic), Jiří JEŽ (203 Czech Republic), Tomáš KULÍK (203 Czech Republic), Bohdan TYSHCHENKO, Silvie BĚLAŠKOVÁ (203 Czech Republic, belonging to the institution), Petr OUŘEDNÍČEK (203 Czech Republic, belonging to the institution), Guido CALUORI (380 Italy, belonging to the institution), Miroslav NOVÁK (203 Czech Republic) and Zdeněk STÁREK (203 Czech Republic, guarantor)

Edition

Diagnostics, Basel, MDPI, 2022, 2075-4418

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30224 Radiology, nuclear medicine and medical imaging

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.600

RIV identification code

RIV/00216224:14110/22:00125484

Organization unit

Faculty of Medicine

DOI

http://dx.doi.org/10.3390/diagnostics12030612

UT WoS

000776880600001

Keywords in English

computed tomography; catheter ablation; radiation

Abstract

V originále

(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.

Links

MUNI/A/1462/2021, interní kód MU

Name: Nové zobrazovací, výpočetní a analytické metody v diagnostice a monitoraci kardiovaskulárních onemocnění

Investor: Masaryk University

Citovat

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. Diagnostics. Basel: MDPI, 2022, vol. 12, No 3, p. 1-12. ISSN 2075-4418. Available from: https://dx.doi.org/10.3390/diagnostics12030612.

@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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