Graduate School of Health Sciences Kumamoto University

Research Subjects	Radiation dose reduction and improved image quality with multidetector CT
Research Focus	Multidetector computed tomography coronary angiography (CTCA) with electrocardiogram (ECG) gating is an accurate non-invasive method to evaluate the coronary artery disease on CT examinations. Additionally, the current multidetector CT facilitates the reliable visualization of coronary artery and the detection of in-stent stenosis compared to the earlier generations of CT scanners. With the use of the CT technology, the research topics are as follows: Optimization of X-ray dose and the image quality with filtered back projection (FBP) and iterative reconstruction (IR) Coronary artery stent evaluation by combining the IR and the high-resolution kernel (Fig. 1) Low-tube-voltage technique acquired at the retrospective and prospective ECG-gated methods 3D motion vector fields (MVFs) between the anchor phase and all other quiescent phases for the cardiac CT. Figure 1 Coronary stent images in the longitudinal plane using different reconstruction algorithms. Stent stenosis of 50% had highest accuracy and was confidentially detected on longitudinal stent images acquired with IR.
Maximum number of acceptable foreign students	2

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