[21p-A602-1~11] 2.4 Medical application

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[21p-A602-6] Preliminary result of photon-counting CT image using 2-dimensional 256-channel MPPC array combined with YGAG scintillator array

〇(M1)Fitri Lucyana¹, Makoto Arimoto¹, Daichi Sato¹, Takahiro Tomoda¹, Hiroki Kawashima¹, Satoshi Kobayashi¹, Kazuhiro Murakami¹, Kenichiro Okumura¹, Jun Kataoka², Mayu Sagisaka², Shinsuke Terazawa³, Satoshi Shiota³ (1.Kanazawa University, 2.Waseda University, 3.Proterial Ltd.)

Keywords:

Photon Counting CT,2D MPPC,YGAG scintillator

The 2-dimensional 256-channel MPPC array combined with YGAG scintillator array detector was developed. The CT imaging experimental setup is to estimate the contrast agent concentration that will be useful in medical CT images. The 2D detector was chosen to make shorten imaging time compared with the 1D detector array, which also impacts reducing the radiation exposure as an important factor for medical imaging. The preliminary result shows that we successfully obtained a 3D CT image with 5 mg/mL of iodine sample. The measurement time is around ten times faster compared with the 1D vertical detector array (in case using the same sample size and exposure time) because the 1D detector array not only needs to rotate the sample but also displacement the sample horizontally. We will briefly report the result of the quantitative evaluation.