Evaluation of image quality and recovery coefficient of corn starch-bonded Rhizophora spp. particleboards as phantom for SPECT/CT imaging

International Nuclear Science, Technology and Engineering Conference 2018

Abd Hamid, P.N.K.^1 ; Mohd Yusof, M.F.^2 ; Tajuddin, A.A.^1 ; Hashim, R.^3 ; Zainon, R.^4

School of Physics, Universiti Sains Malaysia, Penang

11800, Malaysia^1

School of Health Sciences, Universiti Sains Malaysia, Kelantan

16150, Malaysia^2

School of Industrial Technology, Penang

11800, Malaysia^3

Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang

13200, Malaysia^4

关键词: Clinical protocols;    Evaluation of image qualities;    Image contrasts;    Phantom materials;    Recovery coefficients;    Source dimensions;    SPECT/CT imaging;    Tissue equivalent phantom;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/555/1/012031/pdf
DOI  :  10.1088/1757-899X/555/1/012031

来源: IOP

【 摘 要 】

The aim of this study was to evaluate the performance of corn starch-bonded Rhizophora spp. particleboards as phantom for SPECT/CT including the image contrast, source dimension ratio and recovery coefficient values. Phantom set made of the Rhizophora spp. particleboards was constructed according to the Jaszczak phantom commonly used in SPECT/CT with external dimension of 22 and 18 cm diameter and length respectively. Cylindrical vials with different diameter sizes filled with 99mTc unsealed source were inserted in drilled holes of the constructed particleboards phantom. The particleboards phantom was scanned by using SPECT/CT scanning mode and the SPECT images were reconstructed using clinical protocol. The results showed that the contrast value, source dimension ratio and recovery coefficient of Rhizophora spp. particleboards in good agreement with Jaszczak phantom. The overall results showed an excellent agreement of performance between corn starch-bonded Rhizophora spp. particleboards to the Jaszczak (water) as standard phantom material. The overall results indicated that the corn starch-bonded Rhizophora spp. can be highly recommended to be used as tissue-equivalent phantom material for Quality Assurance and dosimetry works in SPECT/CT imaging.