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INTEGRATION OF TAGUCHI ANALYSIS WITH PHANTOM AND INNOVATIVE GAUGES: OPTIMIZATION OF THE CT SCAN PROTOCOL FOR PERIPHERAL ARTERIAL OCCLUSIVE DISEASE (PAOD) SYNDROME
Journal of Mechanics in Medicine and Biology ( IF 0.8 ) Pub Date : 2020-09-18 , DOI: 10.1142/s0219519420400059
TSUNG-MIN LEE, CHIEN-CHUNG LIN, BING-RU PENG, LUNG-FA PAN, LUNG-KWANG PAN

The CT scan protocol optimization for peripheral arterial occlusive disease (PAOD) syndrome was performed by organizing seven CT factors [kVp, mAs, pitch, field of view (FOV) (mm), time of rotation (s), slice thickness (mm), and matrix size] into Taguchi unique [Formula: see text] orthogonal array. The minimum detectable difference (MDD) in the optimizing process was quantified by adopting a customized line group gauge. Besides, three qualified experts in radiology examined by the double-blind criterion the gauge scanned images and ranked them, yielding the optimal setting of CT scan protocols. The latter setting for PAOD included the kVp of 100, mAs of 240, pitch of 0.513, FOV of 320[Formula: see text]mm, rotation time of 0.75[Formula: see text]s, slice thickness of 4.0, and matrix size of [Formula: see text]. The ANOVA and revised Student’s [Formula: see text]-test verified the smallest MDD as 1.43[Formula: see text]mm at a 0.45-mm gauge depth. The ranking process, which makes it possible to magnify and emphasize the imaging correlation among groups, was found to be preferable to grading in the optimization process. The comparative analysis of various MDDs obtained from different medical facilities and literary sources was performed, which revealed that the cardiac X-ray provided the finest spatial resolution according to the quantified MDD. Meanwhile, the CT scan protocol for PAOD adopted in this study had finer MDD than that for the abdomen due to comparatively low kVp or/and mAs.

中文翻译:

TAGUCHI 分析与 Phantom 和创新仪表的集成:优化外周动脉闭塞性疾病 (PAOD) 综合征的 CT 扫描协议

通过组织七个 CT 因素 [kVp、mAs、间距、视野 (FOV) (mm)、旋转时间 (s)、切片厚度 (mm) 来优化外周动脉闭塞性疾病 (PAOD) 综合征的 CT 扫描协议,和矩阵大小]成田口唯一的[公式:见正文]正交数组。通过采用定制的线组量规来量化优化过程中的最小可检测差异(MDD)。此外,三位合格的放射科专家通过双盲标准对量规扫描图像进行检查并对其进行排序,从而得出 CT 扫描协议的最佳设置。PAOD 的后一种设置包括 100 的 kVp、240 的 mAs、0.513 的间距、320 [公式:参见文本]mm 的 FOV、0.75 [公式:参见文本]s 的旋转时间、4.0 的切片厚度和矩阵大小[公式:见正文]。ANOVA 和修改后的学生 [公式:见文本]-测试验证了最小 MDD 为 1.43 [公式:见文本]mm 在 0.45 毫米测量深度。排序过程可以放大和强调组之间的成像相关性,在优化过程中被发现比分级更可取。对从不同医疗机构和文献来源获得的各种 MDD 进行了比较分析,结果表明,根据量化的 MDD,心脏 X 射线提供了最好的空间分辨率。同时,由于 kVp 或/和 mAs 相对较低,本研究中采用的 PAOD 的 CT 扫描方案具有比腹部更精细的 MDD。这使得可以放大和强调组之间的成像相关性,被发现在优化过程中比分级更可取。对从不同医疗机构和文献来源获得的各种 MDD 进行了比较分析,结果表明,根据量化的 MDD,心脏 X 射线提供了最好的空间分辨率。同时,由于 kVp 或/和 mAs 相对较低,本研究中采用的 PAOD 的 CT 扫描方案具有比腹部更精细的 MDD。这使得可以放大和强调组之间的成像相关性,被发现在优化过程中比分级更可取。对从不同医疗机构和文献来源获得的各种 MDD 进行了比较分析,结果表明,根据量化的 MDD,心脏 X 射线提供了最好的空间分辨率。同时,由于 kVp 或/和 mAs 相对较低,本研究中采用的 PAOD 的 CT 扫描方案具有比腹部更精细的 MDD。
更新日期:2020-09-18
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