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Kurisu S, Nitta K, Sumimoto Y, Ikenaga H, Ishibashi K, Fukuda Y, Kihara Y. Effects of aortic tortuosity on left ventricular diastolic parameters derived from gated myocardial perfusion single photon emission computed tomography in patients with normal myocardial perfusion. Heart Vessels 2017; 33:651-656. [PMID: 29209777 DOI: 10.1007/s00380-017-1095-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 12/01/2017] [Indexed: 11/29/2022]
Abstract
Aortic tortuosity is often found on chest radiograph, especially in aged patients. We tested the hypothesis that aortic tortuosity was associated with LV diastolic parameters derived from gated SPECT in patients with normal myocardial perfusion. One-hundred and twenty-two patients with preserved LV ejection fraction and normal myocardial perfusion were enrolled. Descending aortic deviation was defined as the horizontal distance from the left line of the aortic knob to the most prominent left line of the descending aorta. This parameter was measured for the quantitative assessment of aortic tortuosity. Peak filling rate (PFR) and one-third mean filling rate (1/3 MFR) were obtained from redistribution images as LV diastolic parameters. Descending aortic deviation ranged from 0 to 22 mm with a mean distance of 4.5 ± 6.3 mm. Descending aortic deviation was significantly correlated with age (r = 0.38, p < 0.001) and estimated glomerular filtration rate (eGFR) (r = - 0.21, p = 0.02). Multivariate linear regression analysis revealed that eGFR (β = 0.23, p = 0.02) and descending aortic deviation (β = - 0.23, p = 0.01) were significantly associated with PFR, and that only descending aortic deviation (β = - 0.21, p = 0.03) was significantly associated with 1/3 MFR. Our data suggest that aortic tortuosity is associated with LV diastolic parameters derived from gated SPECT in patients with normal myocardial perfusion.
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Affiliation(s)
- Satoshi Kurisu
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Kazuhiro Nitta
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
| | - Yoji Sumimoto
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hiroki Ikenaga
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
| | - Ken Ishibashi
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
| | - Yukihiro Fukuda
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
| | - Yasuki Kihara
- Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi-cho, Minami-ku, Hiroshima, 734-8551, Japan
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Kurisu S, Higaki T, Sumimoto Y, Ikenaga H, Watanabe N, Ishibashi K, Dohi Y, Fukuda Y, Kihara Y. Aortic knob width reflects left ventricular diastolic function assessed by gated myocardial perfusion single photon emission computed tomography in patients with normal myocardial perfusion. Ann Nucl Med 2017; 31:245-249. [DOI: 10.1007/s12149-017-1150-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/10/2017] [Indexed: 10/20/2022]
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Combined analysis of multislice computed tomography coronary angiography and stress–rest myocardial perfusion imaging in detecting patients with significant proximal coronary artery stenosis. Nucl Med Commun 2009; 30:789-96. [DOI: 10.1097/mnm.0b013e32832fff75] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Salerno M, Elliot L, Shaw LK, Piccini JP, Pagnanelli R, Borges-Neto S. Prognostic validation of an algorithm to convert myocardial perfusion SPECT imaging data from a 12-segment model to a 17-segment model. J Nucl Cardiol 2009; 16:605-13. [PMID: 19495902 PMCID: PMC2803346 DOI: 10.1007/s12350-009-9103-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2008] [Revised: 05/07/2009] [Accepted: 05/12/2009] [Indexed: 11/25/2022]
Abstract
BACKGROUND A 17-segment model has become the standard for interpreting myocardial perfusion single-photon emission computed tomography (SPECT). Methods for converting pre-existing databases from 12-segment models to the 17-segment model are needed for ongoing prognostic studies. METHODS AND RESULTS To develop the conversion algorithm, 150 consecutive SPECT studies (82 abnormal) were read by both a 12-segment and the standard 17-segment models. Summed stress scores (SSSs) were calculated from a 17-segment model derived from the 12-segment data and compared to those of the standard 17-segment model. The effect of the conversion algorithm on prognostic data derived from the 12-segment model was evaluated in 25,876 patients from the Duke Nuclear Cardiology Database, including a sample of 3,205 patients with known covariates for adjusted analysis. The derived 17-segment SSS from the 12-segment model was highly correlated (R = 0.99) to the SSS from the standard 17-segment model. In both unadjusted and adjusted analysis, there was no difference in the prognostic information. CONCLUSIONS An algorithm for conversion of 12-segment perfusion scores to 17-segment scores has been developed which is highly correlated to visual interpretation by the 17-segment model with nearly identical prognostic information.
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Affiliation(s)
- Michael Salerno
- Department of Medicine (Cardiology), University of Virginia Health System, Charlottesville, Virginia
- Department of Medicine (Cardiology), Duke University Medical Center, Durham, North Carolina
| | - Laine Elliot
- Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina
| | - Linda K Shaw
- Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina
| | - Jonathan P. Piccini
- Department of Medicine (Cardiology), Duke University Medical Center, Durham, North Carolina
- Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina
| | - Robert Pagnanelli
- Department of Radiology (Nuclear Medicine), Duke University Medical Center, Durham, North Carolina
| | - Salvador Borges-Neto
- Department of Medicine (Cardiology), Duke University Medical Center, Durham, North Carolina
- Department of Radiology (Nuclear Medicine), Duke University Medical Center, Durham, North Carolina
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