Acri Giuseppe, Testagrossa Barbara, Sestito Angela, Bonanno Lilla, Vermiglio Giuseppe
Department of BIOMORF - University of Messina, Italy.
Department of BIOMORF - University of Messina, Italy.
Z Med Phys. 2018 Feb;28(1):6-13. doi: 10.1016/j.zemedi.2017.09.009. Epub 2017 Oct 13.
The efficient use of Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) equipment necessitates establishing adequate quality-control (QC) procedures. In particular, the accuracy of slice separation, during multislices acquisition, requires scan exploration of phantoms containing test objects. To simplify such procedures, a novel phantom and a computerised LabView-based procedure have been devised, enabling determination the midpoint of full width at half maximum (FWHM) in real time while the distance from the profile midpoint of two progressive images is evaluated and measured. The results were compared with those obtained by processing the same phantom images with commercial software. To validate the proposed methodology the Fisher test was conducted on the resulting data sets. In all cases, there was no statistically significant variation between the commercial procedure and the LabView one, which can be used on any CT and MRI diagnostic devices.
有效使用计算机断层扫描（CT）和磁共振成像（MRI）设备需要建立适当的质量控制（QC）程序。特别是在多层采集过程中，切片分离的准确性需要对包含测试对象的体模进行扫描探测。为了简化此类程序，设计了一种新型体模和基于LabView的计算机化程序，能够在评估和测量两个连续图像的轮廓中点之间的距离时实时确定半高宽（FWHM）的中点。将结果与使用商业软件处理相同体模图像所获得的结果进行比较。为了验证所提出的方法，对所得数据集进行了Fisher检验。在所有情况下，商业程序和LabView程序之间均无统计学上的显著差异，该程序可用于任何CT和MRI诊断设备。
