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• W2017698679 abstract "Background: Intravascular ultrasound (IVUS) has several advantages compared to angiography when evaluating coronary atherosclerosis in the vessel wall. Methods: The accuracy, reproducibility, and short-time spontaneous variation in volume of vessel, plaque and lumen were studied by electrocardiographic-gated three-dimensional (3D) IVUS in 20 male patients with ischaemic heart disease (IHD). Results: The study lesions were angiographically insignificant, with a length of the analysed segment on 11.4±5.9 mm. At baseline the mean minimal lumen diameter was 2.41±0.59 mm, minimal lumen area 4.82±2.38 mm2, and maximal plaque burden 65.61±9.57%. Mean reference diameter was 3.1±0.6 mm. No significant changes were observed in volumes of total vessel, lumen or plaque. The coefficient of variation (CV) for two volume measurements at baseline was: vessel 0.8%, plaque 1.3%, and lumen 1.4%. For measurements recorded at baseline and after 12.6±1.5 weeks, CV was respectively 3.5%, 3.3% and 6.6%. Reproducibility and interobserver and intraobserver variation showed very high correlations. A linear correlation was present in percent changes over 12.6±1.5 weeks between vessel volume and lumen volume (r=0.804; p<0.001) and between percent changes in plaque volume and vessel volume (r=0.581; p=0.007). No correlation was found between changes in plaque volume and lumen volume (r=0.015; p=0.950). Conclusion: ECG-gated 3D IVUS is a highly reproducible method when applied on coronary artery atherosclerosis. CV for lumen volume over 12.6±1.5 weeks is twice that of plaque volume indicating the superiority of the 3D IVUS compared to coronary angiography (CAG)." @default.
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• W2017698679 date "2004-12-01" @default.
• W2017698679 modified "2023-09-24" @default.
• W2017698679 title "Low variation and high reproducibility in plaque volume with intravascular ultrasound" @default.
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• W2017698679 doi "https://doi.org/10.1016/j.ijcard.2003.10.036" @default.
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