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.Základní údaje
Originální název
Reduced Radiation Exposure Protocol during Computer Tomography of the Left Atrium Prior to Catheter Ablation in Patients with Atrial Fibrillation
Autoři
JADCZYK, Tomasz, Jiří WOLF (203 Česká republika), Martin PEŠL (203 Česká republika, domácí), Filip SOUČEK (203 Česká republika), František LEHAR (203 Česká republika), Jiří JEŽ (203 Česká republika), Tomáš KULÍK (203 Česká republika), Bohdan TYSHCHENKO, Silvie BĚLAŠKOVÁ (203 Česká republika, domácí), Petr OUŘEDNÍČEK (203 Česká republika, domácí), Guido CALUORI (380 Itálie, domácí), Miroslav NOVÁK (203 Česká republika) a Zdeněk STÁREK (203 Česká republika, garant)
Vydání
Diagnostics, Basel, MDPI, 2022, 2075-4418
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30224 Radiology, nuclear medicine and medical imaging
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.600
Kód RIV
RIV/00216224:14110/22:00125484
Organizační jednotka
Lékařská fakulta
UT WoS
000776880600001
Klíčová slova anglicky
computed tomography; catheter ablation; radiation
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 3. 2023 13:25, Mgr. Tereza Miškechová
Anotace
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.
Návaznosti
MUNI/A/1462/2021, interní kód MU |
|