Quantitative Assessment of Variation in CT Parameters on Texture Features: Pilot Study Using a Nonanatomic Phantom.
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-tailedttests and false-detection analyses were performed with significant differences in texture features based on detector array configurations (Qvalues = 0.001-0.006), section thickness (Qvalues = 0.0002-0.001), and acquisition mode (Qvalues = 0.003-0.006). Variations in milliampere and kilovolt had no significant effect.
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).
K
http://orcid.org/0000-0001-9579-8921
K
Buch
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).
B
http://orcid.org/0000-0001-6683-5535
B
Li
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).|Radiation Oncology (M.M.Q., O.S.).
M M
http://orcid.org/0000-0002-2056-3308
MM
Qureshi
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).
H
http://orcid.org/0000-0002-4337-2782
H
Kuno
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.).
S W
http://orcid.org/0000-0002-5367-7459
SW
Anderson
From the Departments of Radiology (K.B., B.L., M.M.Q., H.K., S.W.A., O.S.) osamu.sakai@bmc.org.|Radiation Oncology (M.M.Q., O.S.).|Otolaryngology-Head and Neck Surgery (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts.
O
http://orcid.org/0000-0003-3462-5116
O
Sakai
D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D019047:Phantoms, Imaging; D010865:Pilot Projects; D014057:Tomography, X-Ray Computed / Q000379:methods*