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Grund Frederik Fasth Myhr Katrine Aagaard Visby Lasse Hassager Christian Mogelvang Rasmus 《The international journal of cardiovascular imaging》2021,37(7):2175-2187
The International Journal of Cardiovascular Imaging - To evaluate the impact of surgical aortic valve replacement (SAVR) on global (GLS) and regional longitudinal strain (RLS) across four... 相似文献
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Niels Thue Olsen M.D. Christian Jons M.D. Thomas Fritz-Hansen M.D. Rasmus Mogelvang M.D. Peter Sogaard M.D. D.MSc. 《Echocardiography (Mount Kisco, N.Y.)》2009,26(6):638-644
Background: Myocardial velocities can be measured with both pulsed-wave tissue Doppler (PWTD) and color tissue Doppler (CTD) echocardiography. We aimed to (A) to explore which of the two methods better approximates true tissue motion and (B) to examine the agreement and the reproducibility of the two methods in a routine clinical setting. Methods: For Study A, the displacements of 63 basal myocardial segments from 13 patients were examined with M-mode and compared with the velocity-time integral of PWTD and CTD velocities. For Study B, the basal lateral segments from 58 patients were examined with PWTD and CTD, and the peak myocardial velocities during systole (Sm), early diastole (Em), and late diastole (Am) were measured. Results: Study A: CTD-based measurements of displacement were 12% lower than M-mode measurements (95% CI: −18%; −6%). PWTD velocity-time integrals measured at the outer edge of the spectral band were 40% higher (33%; 46%) than M-mode measurements. Study B: PWTD measurements of myocardial velocity were systematically higher than CTD measurements: Sm 7.51 versus 5.54, difference 1.97 ± 1.41 cm/sec; Em 8.74 versus 6.86, difference 1.88 ± 1.70 cm/sec; Am 7.46 versus 5.17, difference 2.29 ± 1.82 cm/sec; P < 0.001 for all. Intraobserver coefficient of variation for Sm, Em, and Am were 6%, 12%, and 12% for PWTD, 14%, 13%, and 20% for CTD. Conclusions: CTD measures numerically smaller tissue velocities than PWTD, mostly due to an overestimation of true tissue motion by PWTD. The methods have good agreement and comparable reproducibility. 相似文献
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A simple linear model for the effect of changes in metabolic risk factors on coronary heart disease 总被引:3,自引:0,他引:3
OBJECTIVES: The risk of having one or more metabolic risk factors in the development of coronary heart disease (CHD) is well estimated, but it still remains to be shown which influence any given change in the number of risk factors has on the overall risk of CHD. DESIGN: In this prospective cardiovascular population study, 10 194 participants were examined twice with a 5-year interval for metabolic risk factors such as obesity, hypertension, hypercholesterolaemia and diabetes mellitus. RESULTS: During 14 years of follow-up, 1724 incident cases of CHD were identified, 973 in men and 751 in women. The effect of an increase in the number of metabolic risk factors during a 5-year interval on the relative risk of CHD could be determined to be statistically significant for both genders. But only for men, the effect of a decrease in the number of metabolic risk factors was statistically significant during the same time interval. Hence, by statistical analysis, a simple linear model could be constructed for men with two linear trend parameters, one corresponding to the number of metabolic risk factors at the first examination and one corresponding to the change in the number of metabolic risk factors from the first to the second examination. The parameters were 1.50 (1.39-1.63); P < 0.001 and 1.29 (1.18-1.41); P < 0.001, respectively. CONCLUSIONS: This study suggests that it is possible to fit a simple linear model for the effect of changed number of metabolic risk factors on the risk of CHD. 相似文献
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Karsum Emil Høegholm Andersen Ditte Madsen Modin Daniel Biering-Sørensen Sofie R. Mogelvang Rasmus Jensen Gorm Schnohr Peter Gislason Gunnar Biering-Sørensen Tor 《The international journal of cardiovascular imaging》2021,37(5):1679-1688
The International Journal of Cardiovascular Imaging - LA dyssynchrony is a predictor of cardiovascular morbidity in various patient populations. However, the prognostic value of LA dyssynchrony as... 相似文献
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