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The Effect of Low-Dose β-Blocker on Heart Rate and Heart Rate Variability in Healthy Subjects with a Resting Heart Rate of Less than 65 Beats per Minute: Effect on the Image Quality of Prospective Electrocardiography-Gated Coronary CT Angiography1
DC Field | Value | Language |
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dc.contributor.author | 김태훈 | - |
dc.contributor.author | 박철환 | - |
dc.contributor.author | 홍유진 | - |
dc.date.accessioned | 2016-02-04T11:05:34Z | - |
dc.date.available | 2016-02-04T11:05:34Z | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 1738-2637 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/139646 | - |
dc.description.abstract | Purpose : We assessed the effect of a low-dose β-blocker on heart rate (HR), HR variability (HRV) and image quality of prospective electrocardiography-gated coronary CT angiography (CCTA) in healthy subjects with low HR. Materials and Methods : CCTA was performed with a 64-slice CT in 75 subjects with a HR of less than 65 beats per minute (bpm). Subjects were divided into 2 groups: Group 1 (G1), 35 with a low dose β-blocker; and Group 2 (G2), 40 without pre-medication. The image quality (IQ) of the CCTA was assessed on a 4-point grading scale (1, poor; 4, excellent). Results : Initial HR (bpm) was not different between the 2 groups. HR during CCTA was lower in G1 than G2 (50.3 ± 5.6 vs. 53.3 ± 4.8, p = 0.016). HRV was not different between the 2 groups. Per-segment analysis showed better IQ at the mid-segment of the right coronary artery (3.0 ± 0.9 vs. 2.5 ± 1.1, p = 0.039) and the first diagonal branch (3.4 ± 0.6 vs. 3.1 ± 0.7, p = 0.024), in the G1 than the G2 group, respectively. The IQ was negatively correlated with HR, but no correlation was found between HRV and IQ. The IQs in the per-vessel analysis were not different between the 2 groups. Conclusion : Low-dose β-blocker reduced HR and improved the IQ of CCTA in a few segments, even at a HR of less than 65 bpm. However the effect was limited. | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 83~91 | - |
dc.language | Korean | - |
dc.publisher | 대한영상의학회 | - |
dc.relation.isPartOf | Journal of the Korean Society of Radiology | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | The Effect of Low-Dose β-Blocker on Heart Rate and Heart Rate Variability in Healthy Subjects with a Resting Heart Rate of Less than 65 Beats per Minute: Effect on the Image Quality of Prospective Electrocardiography-Gated Coronary CT Angiography1 | - |
dc.title.alternative | 저용량 베타차단제가 낮은 심박수 무증상 환자의 심박수, 심박변화, 그리고 전향적 동조화 심장 CT에 미치는 영향1 | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학) | - |
dc.contributor.googleauthor | Chul Hwan Park | - |
dc.contributor.googleauthor | Sang Min Lee | - |
dc.contributor.googleauthor | Yoo Jin Hong | - |
dc.contributor.googleauthor | Tae Hoon Kim | - |
dc.identifier.doi | 10.3348/jksr.2015.72.2.83 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A01086 | - |
dc.contributor.localId | A01722 | - |
dc.contributor.localId | A04422 | - |
dc.relation.journalcode | J01843 | - |
dc.identifier.eissn | 2288-2928 | - |
dc.subject.keyword | β-Blocker | - |
dc.subject.keyword | Coronary CT Angiography | - |
dc.subject.keyword | Heart Rate | - |
dc.subject.keyword | Heart Rate Variability | - |
dc.subject.keyword | Image Quality | - |
dc.contributor.alternativeName | Kim, Tae Hoon | - |
dc.contributor.alternativeName | Park, Chul Hwan | - |
dc.contributor.alternativeName | Hong, Yoo Jin | - |
dc.contributor.affiliatedAuthor | Kim, Tae Hoon | - |
dc.contributor.affiliatedAuthor | Park, Chul Hwan | - |
dc.contributor.affiliatedAuthor | Hong, Yoo Jin | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 72 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 83 | - |
dc.citation.endPage | 91 | - |
dc.identifier.bibliographicCitation | Journal of the Korean Society of Radiology, Vol.72(2) : 83-91, 2015 | - |
dc.identifier.rimsid | 52380 | - |
dc.type.rims | ART | - |
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