Quantitative evaluation of acquisition parameters in three-dimensional imaging with multidetector computed tomography using human skull phantom.
This study evaluated the quantitative measurements of three-dimensional (3D) volume images using multidetector row computed tomography (MDCT) and one skull specimen. Twenty-one linear distances were measured five times each by vernier caliper. A dry human skull was imaged with MDCT for various acquisition parameters at slice thicknesses of 1.25, 2.50, 3.75, and 5.00 mm for the different acquisition modes of axial and spiral scan. The distance of each corresponding item displayed on 3D rendered images was measured seven times by an uninvolved observer using a 3D software tool. Data analysis was performed to determine if there were any statistically significant differences in acquisition parameters. No significant image differences were found among the scan modes for each slice thickness. For a given scan mode, acquisition slice thickness was the important factor for quantitative measurement of 3D rendered CT images.
Kim
Dong-Ook
DO
BK21 Project for Medical Sciences, Research Institute of Radiological Science, Seoul, Korea.
Kim
Hee-Joung
HJ
Jung
Haijo
H
Jeong
Ha-Kyu
HK
Hong
Soon-Il
SI
Kim
Kee-Deog
KD
D006801:Humans; D021621:Imaging, Three-Dimensional; D019047:Phantoms, Imaging; D012886:Skull / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed