| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
With the new system, we set 512 vector lines of ultrasound signal around the circumference, whereas 256 vector lines were used in the previous system. In addition, the sampling rate of ultrasound was improved from 100MHz to 320 and 400MHz.
We improved an online IB-IVUS imaging system for tissue characterization of coronary plaques. The use of the appropriate IB cutoff points for discriminating lipid pool, fibrosis and calcification resulted in tissue characterization with a high diagnostic accuracy. The thickness of fibrous cap measured by IB-IVUS was correlated with that measured by optical coherence tomography.
Quantitative tissue characterization of carotid plaques using IBS ultrasound was useful to predict newly appearing ipsilateral silent ischemic lesions after carotid artery stenting.
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