[17a-D62-1~7] 2.4 医用応用

11:30 〜 11:45奨励賞エントリー英語発表

[17a-D62-7] Preliminary evaluation of dynamic imaging results of contrast agent sample using a 2-dimensional MPPC-based photon counting CT detector system

〇(M2)Fitri Lucyana¹, Makoto Arimoto¹, Takahiro Tomoda¹, Minori Oshima¹, Yu Furuta¹, Hiroki Kawashima¹, Satoshi Kobayashi¹, Kazuhiro Murakami¹, Kenichiro Okumura¹, Jun Kataoka², Ryotaro Minagawa², Daichi Sato³, Shinsuke Terazawa⁴, Satoshi Shiota⁴ (1.Kanazawa Univ., 2.Waseda Univ., 3.Tohoku Univ., 4.Proterial Ltd.)

キーワード：

photon counting CT、2-dimensional detector、dynamic imaging

Photon counting (PC) detectors revolutionize medical CT imaging with their capability to count individual photons while simultaneously measuring their energy. Consequently, PC-CT significantly advances the benefits of medical diagnostics and treatment. The development of an established PC-CT system, integrating a multi-pixel photon counter (MPPC) array with a yttrium-gadolinium-aluminum-gallium garnet (YGAG) scintillator array, needs to expand from a 1-dimensional to a 2-dimensional detector to enhance temporal image resolution. In this presentation, we report on the preliminary evaluation of dynamic imaging using a 2-dimensional PC-CT system to assess object flow within specific time intervals, demonstrated as a simplified model for vascular system dynamics. We injected an Iodine 5 mg/mL substance sample via a syringe pump with an injecting rate of 3.7 mL/h. Ideally, in a sample tube with an inner diameter of 10 mm, the surface of the substance will rise by 4.71 mm within 6 minutes. We will briefly report the result of the detailed evaluation.