PMID- 21532241 OWN - NLM STAT- MEDLINE DCOM- 20110915 LR - 20190911 IS - 1881-4883 (Electronic) IS - 0369-4305 (Linking) VI - 67 IP - 4 DP - 2011 TI - [Evaluation of 320-row area detector computed tomography (ADCT) coronary angiography for patients with atrial fibrillation]. PG - 321-7 AB - The aim of this study was to evaluate 320-row area detector CT (ADCT) for patients with atrial fibrillation (Af) based on simulated exposure using electrocardiogram RR intervals and comparison with the findings of coronary CT angiography (CCTA) using 64-row multi slice CT (MSCT). The probability of including RR intervals of 900 ms or more was calculated when the acquisition time was varied from 1 to 4 beats. Overall, 51 patients with Af who underwent CCTA were examined. The exposure time for CCTA, the total dose length product (DLP) for the examination, and the image quality (scored 0 to 3: poor to excellent) were compared between ADCT and MSCT. The probability of including RR intervals of 900 ms or more was highly significantly increased at 3 beats of acquisition time. The exposure time using ADCT was reduced by 75% compared with MSCT (ADCT/MSCT: 2.8/11.3 s), and the total DLP was reduced by 40% (ADCT/MSCT: 1398/2277 mGy.cm). Moreover, ADCT provided diagnosable images in all cases, and the mean image quality score for ADCT was significantly higher than that for MSCT (ADCT/MSCT: 2.8/2.4). Thus, 320-row ADCT at 3 beats of acquisition time can provide CCTA images of acceptable quality for patients with Af. FAU - Takagi, Masachika AU - Takagi M AD - Graduate School of Health Sciences, Fujita Health University. FAU - Kaneko, Takeshi AU - Kaneko T FAU - Kato, Ryohei AU - Kato R FAU - Anno, Hirofumi AU - Anno H FAU - Yoshimi, Satoshi AU - Yoshimi S FAU - Ida, Yoshihiro AU - Ida Y FAU - Sanda, Yoshihiro AU - Sanda Y FAU - Katada, Kazuhiro AU - Katada K LA - jpn PT - Comparative Study PT - Journal Article PL - Japan TA - Nihon Hoshasen Gijutsu Gakkai Zasshi JT - Nihon Hoshasen Gijutsu Gakkai zasshi JID - 7505722 SB - IM MH - Aged MH - Atrial Fibrillation/*diagnostic imaging MH - Coronary Angiography/*methods MH - Electrocardiography MH - Female MH - Heart Rate MH - Humans MH - Male MH - Tomography, X-Ray Computed/*methods EDAT- 2011/05/03 06:00 MHDA- 2011/09/16 06:00 CRDT- 2011/05/03 06:00 PHST- 2011/05/03 06:00 [entrez] PHST- 2011/05/03 06:00 [pubmed] PHST- 2011/09/16 06:00 [medline] AID - JST.JSTAGE/jjrt/67.321 [pii] AID - 10.6009/jjrt.67.321 [doi] PST - ppublish SO - Nihon Hoshasen Gijutsu Gakkai Zasshi. 2011;67(4):321-7. doi: 10.6009/jjrt.67.321.