Abstract：Objective To explore the clinical application value of the dual source CT dual energy scanning
linear fusion technology for eliminating lumbar metal implants artifacts. Methods 33 patients that were
going to check after lumbar metal implants were selected for our research. The dual source CT dual
energy scanning with the voltages were separately 80 kV and 140 kV was used to gain the imaging data
for linear fusion, which we marked as group A. The regular 120 kV imaging data was simulated, which
we marked as group B. Multiple planar reconstruction, volume reality, maximum intensity projection,
reconstruction image quality and the artifacts were evaluated. Results The images with high quality
under linear fusion were 90% and 33%, respectively. The images with no artifact in group A and B
accounted for 91% and 36%, respectively. The difference between group A (Z=5.74, P=0.00) and group B
(Z=6.74, P=0.00) was statistically significant. Conclusion It was very accurate and effective for the dual
source CT dual energy scanning linear fusion technology to eliminate lumbar metal implants artifacts. It
could clearly show the location shape, and other microscopic structures of the lumbar metal fixture. In
addition, it could clearly show right and left psoas muscles without artifacts interference. Therefore, the
dual source CT dual energy scanning linear fusion technology can obtain high quality images and meet
the diagnostic requirements.
李笑石，石磊，刘豹，常英娟，
石明国，余厚军. 双源CT双能量线性融合重建去除腰椎固定物金属伪影的初步研究[J]. 中国医疗设备, 2017, 32(5): 19-21.
LI Xiao-shi, SHI Lei, LIU Bao,
CHANG Ying-juan,
SHI Ming-guo, YU Hou-jun. Preliminary Study of Utilizing Dual Source CT Dual Energy Linear Fusion
Technology to Eliminate Lumbar Metal Implants Artifacts. China Medical Devices, 2017, 32(5): 19-21.
