Abstract
： ： ：The atherosclerotic plaque of carotid artery is associated with an increased risk of cerebral infarction. The aim of this study was to evaluate the feasibility and the clinical usefulness of 3-dimensional (3-D reconstruction of carotid artery. Methods：We performed conventional 2D using 15 MHz transducer and 3-D ultrasound examinations of carotid arteries in 19 subjects (M：F＝10：9, mean age＝51±16 yrs, range 30-70yrs, 13 subjects with coronary artery disease, 6 normal volunteer. Ultrasound images were acquired with a 7.5 MHz linear array transducer (HP Sonos 5500 and a freehand acquisition kit. The 3-D reconstruction was performed with a specialized software (Tomtec. Results：1 The recorded images were easily reconstructed within about 90 seconds. 2 The reconstruction of 3-D images were obtained in 18 of 19 subjects (95%. 3 Of eighteen 3-D images of carotid arteries, 9 plaques were clearly visualized. 4 The locations of plaque of 3-D image were closely related with conventional 2-D images but hidden plaques were also detected. Conclusion：3-D reconstruction of carotid artery is very feasible and provides additional and exact informations about the plaque morphology and location.
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