start-ver=1.4
cd-journal=joma
no-vol=50
cd-vols=
no-issue=1
article-no=
start-page=100
end-page=107
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202501
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Investigating the Effects of Reconstruction Conditions on Image Quality and Radiomic Analysis in Photon-counting Computed Tomography
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Introduction:Photon-counting computed tomography (CT) is equipped with an adaptive iterative reconstruction method called quantum iterative reconstruction (QIR), which allows the intensity to be changed during image reconstruction. It is known that the reconstruction conditions of CT images affect the analysis results when performing radiomic analysis. The aim of this study is to investigate the effect of QIR intensity on image quality and radiomic analysis of renal cell carcinoma (RCC).
Materials and Methods:The QIR intensities were selected as off, 2 and 4. The image quality evaluation items considered were task-based transfer function (TTF), noise power spectrum (NPS), and low-contrast object specific contrast-to-noise ratio (CNRLO). The influence on radiomic analysis was assessed using the discrimination accuracy of clear cell RCC.
Results:For image quality evaluation, TTF and NPS values were lower and CNRLO values were higher with increasing QIR intensity; for radiomic analysis, sensitivity, specificity, and accuracy were higher with increasing QIR intensity. Principal component analysis and receiver operating characteristics analysis also showed higher values with increasing QIR intensity.
Conclusion:It was confirmed that the intensity of the QIR intensity affects both the image quality and the radiomic analysis.
en-copyright=
kn-copyright=
en-aut-name=OhataMiyu
en-aut-sei=Ohata
en-aut-mei=Miyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FukuiRyohei
en-aut-sei=Fukui
en-aut-mei=Ryohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MorimitsuYusuke
en-aut-sei=Morimitsu
en-aut-mei=Yusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KobayashiDaichi
en-aut-sei=Kobayashi
en-aut-mei=Daichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamauchiTakatsugu
en-aut-sei=Yamauchi
en-aut-mei=Takatsugu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=AkagiNoriaki
en-aut-sei=Akagi
en-aut-mei=Noriaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=HondaMitsugi
en-aut-sei=Honda
en-aut-mei=Mitsugi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=HayashiAiko
en-aut-sei=Hayashi
en-aut-mei=Aiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=HasegawaKoshi
en-aut-sei=Hasegawa
en-aut-mei=Koshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KidaKatsuhiro
en-aut-sei=Kida
en-aut-mei=Katsuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=GotoSachiko
en-aut-sei=Goto
en-aut-mei=Sachiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=HirakiTakao
en-aut-sei=Hiraki
en-aut-mei=Takao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
affil-num=1
en-affil=Department of Radiological Technology, Graduate School of Health Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Radiological Technology, Faculty of Health Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Radiological Technology, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Division of Radiological Technology, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Division of Radiological Technology, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Division of Radiological Technology, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Division of Radiological Technology, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Radiology, Hiroshima University Hospital
kn-affil=
affil-num=9
en-affil=Department of Radiological Technology, Graduate School of Health Sciences, Okayama University
kn-affil=
affil-num=10
en-affil=Department of Radiological Technology, Faculty of Health Sciences, Okayama University
kn-affil=
affil-num=11
en-affil=Department of Radiological Technology, Faculty of Health Sciences, Okayama University
kn-affil=
affil-num=12
en-affil=Department of Radiology, Faculty of Medicine, Dentistry and Pharmaceutical, Okayama University
kn-affil=
en-keyword=Image quality
kn-keyword=Image quality
en-keyword=photon-counting computed tomography
kn-keyword=photon-counting computed tomography
en-keyword=quantum iterative reconstruction
kn-keyword=quantum iterative reconstruction
en-keyword=radiomics
kn-keyword=radiomics
en-keyword=renal cell carcinoma
kn-keyword=renal cell carcinoma
END