Application of energy spectrum CT scanning in the typing of peripheral lung cancer(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第5期
- Page:
- 608-611
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Application of energy spectrum CT scanning in the typing of peripheral lung cancer
- Author(s):
- JI Kunpeng1; REN Jiwei2; JIN Hongxing2
- 1.Department of Medical Imaging, Shanxi Medical University, Taiyuan 030000 China 2.CT/MRI Room, Shanxi Provincial Cancer
Hospital, Taiyuan 030000, China
- Keywords:
- peripheral lung cancer energy spectrum CT scanning mode differential diagnosis
- PACS:
- R734.2；R816.41
- DOI:
- 10.3969/j.issn.1005-202X.2020.05.015
- Abstract:
- Objective To explore the application value of different scanning modes of energy spectrum CT in the typing of peripheral
lung cancer. Methods The imaging data of 90 cases of peripheral lung cancer confirmed by pathology from February 2018 to
October 2018 in Shanxi Provincial Cancer Hospital were analyzed retrospectively. According to the final pathological results, the
cases were classified into 3 groups, namely lung adenocarcinoma (ADC) group, squamous cell carcinoma (SC) group and smallcell
lung cancer (SCLC) group. The morphological signs obtained by energy spectrum CT plain scan and the quantitative parameters
obtained by enhanced scanning under energy spectrum mode were recorded. Finally, the typing results for peripheral lung cancer
by the obtained signs and parameters were compared with pathological results. Results The marginal lobulation/burr sign, bronchial
truncation sign, enlarged lymph nodes accompanied with fusion, normalized iodine concentration (NIC), and the slope of the
spectral curve were significantly different in the 3 groups of lung cancer (P<0.05). The inter-group comparison showed that there
were differences in marginal lobulation sign between SCLC group and ADC group, the marginal burr sign between SCLC group
and ADC group, SC group, the bronchial truncation sign between SC group and ADC group, SCLC group, and enlarged lymph
nodes accompanied with fusion between SCLC group andADC group. NIC and the slope of energy spectrum curve were different
among 3 groups. The comparison between pathological results and the typing of peripheral lung cancer by energy spectrum plain
scanning and enhanced scanning under energy spectrum mode shows that there were significant differences in the sensitivity and
specificity toADC and the sensitivity to SCLC (P<0.05). Conclusion Marginal burr sign is common inADC marginal burr sign
and bronchial truncation sign are common in SC and marginal lobulation sign and mediastinal enlarged lymph nodes accompanied
with fusion are common in SCLC. The NIC and the slope of energy spectrum curve of SC are higher than those of SCLC and the NIC and the slope of energy spectrum curve of the ADC are the highest. Compared with energy spectrum plain scan, enhanced
scanning under energy spectrum mode has higher sensitivity and specificity toADC and a better sensitivity to SCLC.
Last Update: 2020-06-03