1. 东部战区总医院（原南京军区南京总医院） a. 医学影像科；b. 泌尿外科，江苏 南京 210002；
2. 北部战区总医院 a. 重症（战）创伤救治中心实验室；b. 放射诊断科，辽宁 沈阳 110016
Feasibility Study of 3D Modeling and Printing of Thoracoabdominal Aorta and Renal Artery
Based on Low Dose CT Scanning Strategy
LI Guan1a, HUANG Wei1a, CAO Zhiqiang2a, WANG Haopeng2b, WANG Jinbao2b, DONG Jie1b
1. a. Department of Medical Imaging; b. Department of Urinary Surgery, General Hospital of Eastern Theater Command, Nanjing
Jiangsu 210002, China; 2. a. Severe Trauma Treatment Laboratory; b. Department of Radiology, General Hospital of Northern
Theater Command, Shenyang Liaoning 110016, China
Abstract：Objective To explore the feasibility of low-dose CT scanning for 3D modeling and printing of thoracoabdominal aorta and
renal artery. Methods A total of 40 patients with clinically planned underwent thoracoabdominal aortic and renal artery 3D modeling
print were randomly divided into two groups, 20 in each group. In A group (low-dose protocol), KV assist combined with automatic
tube current modulation technology and adaptive statistical iterative reconstruction were adopted. In B group (conventional dose
protocol), 120 kVp, 250 mA and filtering back projection reconstruction were adopted. The contrast agent 320 mgI/mL was used
in two groups. The CT DICOM data of the two groups were transmitted to the 3D printing workstation for 3D modeling printing
of the thoracoabdominal aorta and renal artery. The clinical information, CTDIvol, DLP and ED were compared between the two
groups. The subjective evaluation of thoracoabdominal aortic and renal artery 3D modeling printing were completed. Results There
was no significant difference in general clinical data between the two groups (P>0.05). The CTDIvol, DLP and ED in A group were
lower than those in B group (P<0.05). The ED of A group [(9.38±3.27) mSv] was less than that of B group [(15.19±3.01) mSv] by
approximately 38.2% (P<0.05). There was no difference in the subjective score between the two groups in thoracoabdominal aortic
and renal artery 3D modeling printing (P=0.752). Conclusion In 3D modeling printing of thoracoabdominal aortic and renal artery,
the data of CT DICOM generated by low-dose CT scanning technology can significantly reduce the radiation dose of patients while
ensuring the quality of 3D model printing.
李冠1a，黄伟1a，曹志强2a，王昊鹏2b，王金宝2b，董杰1b. 基于低剂量CT扫描策略行胸腹主动脉及肾动脉3D建模打印的可行性研究[J]. 中国医疗设备, 2020, 35(5): 101-104.
LI Guan1a, HUANG Wei1a, CAO Zhiqiang2a, WANG Haopeng2b, WANG Jinbao2b, DONG Jie1b. Feasibility Study of 3D Modeling and Printing of Thoracoabdominal Aorta and Renal Artery
Based on Low Dose CT Scanning Strategy. China Medical Devices, 2020, 35(5): 101-104.
