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RT Journal Article
SR Electronic
T1 Quantitative Assessment of Variation in CT Parameters on Texture Features: Pilot Study Using a Nonanatomic Phantom
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 981
OP 985
DO 10.3174/ajnr.A5139
VO 38
IS 5
A1 Buch, K.
A1 Li, B.
A1 Qureshi, M.M.
A1 Kuno, H.
A1 Anderson, S.W.
A1 Sakai, O.
YR 2017
UL http://www.ajnr.org/content/38/5/981.abstract
AB SUMMARY: Our aim was to evaluate changes in texture features based on variations in CT parameters on a phantom. Scans were performed with varying milliampere, kilovolt, section thickness, pitch, and acquisition mode. Forty-two texture features were extracted by using an in-house-developed Matlab program. Two-tailed t tests and false-detection analyses were performed with significant differences in texture features based on detector array configurations (Q values = 0.001–0.006), section thickness (Q values = 0.0002–0.001), and acquisition mode (Q values = 0.003–0.006). Variations in milliampere and kilovolt had no significant effect.GLCMgray-level co-occurrence matrixGLGMgray-level gradient matrixGLRLgray-level run lengthMDCTmultidetector row CTRPrun percentage