Systolic reconstruction in patients with low heart rate using coronary dual-source CT angiography
| Autor: | Toshiro Miura, Yoshiteru Nakashima, Munemasa Okada, Tomoko Nao, Naofumi Matsunaga, Youko Shigemoto, Yuichi Sano, Shoji Kido, Akiko Narazaki |
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| Rok vydání: | 2010 |
| Předmět: |
Male
medicine.medical_specialty Systole Diastole Coronary Disease Coronary Angiography Ventricular Dysfunction Left Heart Rate Predictive Value of Tests Risk Factors Diabetes mellitus Internal medicine Heart rate medicine Bradycardia Diabetes Mellitus Heart rate variability Humans Radiology Nuclear Medicine and imaging Aged Ejection fraction medicine.diagnostic_test business.industry General Medicine medicine.disease Predictive value of tests Angiography Hypertension Cardiology Radiographic Image Interpretation Computer-Assisted Female business Tomography X-Ray Computed Algorithms |
| Zdroj: | European journal of radiology. 80(2) |
| ISSN: | 1872-7727 |
| Popis: | The purpose of our study was to determine the relationship between the predictive factors and systolic reconstruction (SR) as an optimal reconstruction window in patients with low heart rate (LHR; less than 65 bpm).391 patients (262 male and 129 female, mean age; 67.1±10.1 years of age) underwent coronary CTA without the additional administration of a beta-blocker. Affecting factors for SR were analyzed in age, gender, body weight (BW), diabetes mellitus (DM), coronary arterial disease (CAD), ejection fraction (EF), systolic and diastolic body pressure (BP) and heart rate variability (HRV) during coronary CTA.In 29 (7.4%) of the 391 patients, SR was needed, but there was no apparent characteristic difference between the systolic and diastolic reconstruction groups in terms of gender, age, BW, DM, CAD and EF. In a multivariate analysis, the co-existence of DM [P0.05; OR, 0.27; 95% CI, 0.092-0.80], diastolic BP [P0.01; OR, 0.95; 95% CI, 0.92-0.98] and HRV [P0.01; OR, 0.98; 95% CI, 0.96-0.99] were found to be the factors for SR. In gender-related analysis, HRV was an important factor regardless of sex, but co-existence of DM affected especially for female and BP for male.Especially in the patients with LHR who had a medication of DM, high HRV or high BP, SR, in addition to DR, was needed to obtain high-quality coronary CTA images. |
| Databáze: | OpenAIRE |
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