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Volume 41 Issue 2
May  2018
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Article Navigation >  Journal of Molecular Imaging  > 2018  >  41(2): 181-184
Susheng TIAN, Wei ZHANG. Multi-slice spiral CT enhancement examination in the diagnosis and differential diagnosis of peripheral lung cancer[J]. Journal of Molecular Imaging, 2018, 41(2): 181-184. doi: 10.3969/j.issn.1674-4500.2018.02.12
Citation: Susheng TIAN, Wei ZHANG. Multi-slice spiral CT enhancement examination in the diagnosis and differential diagnosis of peripheral lung cancer[J]. Journal of Molecular Imaging, 2018, 41(2): 181-184. doi: 10.3969/j.issn.1674-4500.2018.02.12
shu

Multi-slice spiral CT enhancement examination in the diagnosis and differential diagnosis of peripheral lung cancer

doi: 10.3969/j.issn.1674-4500.2018.02.12

  • Department of Medical Imaging, The Sixth Division Hospital of Xinjiang Production and Construction Corps, Wujiaqu 831300, China

  • Received Date: 2018-01-30
  • Publish Date: 2018-04-01
    Abstract
  • Objective To explore the significance of multi-slice spiral CT enhancement examination in the diagnosis and differential diagnosis of peripheral lung cancer. Methods Sixty-five patients with lung cancer were selected as the case group and received CT plain and contrast-enhanced scan. The edge and content signs of CT findings and CT value changes were analyzed and compared, and the significance of CT contrast-enhanced scan for CT plain scan was investigated. 32 patients with pulmonary tuberculosis were selected as the control group and underwent the same examinations. The CT enhanced peak of the lesions (the mean value of the maximum CT value) was measured, and the CT enhanced increment (maximum enhanced CT value - flat scan CT value) and the SPH/PPH (the ratio of the focal point of the lesion and that of the aortic enhanced CT) were calculated. The CT value variations of aforementioned factors before and after the enhancement were analyzed and compared. Results IIn the CT plain and contrast-enhanced scan of the lung cancer group, there were significant differences between short spicule signs and high-density points (P<0.01). in the comparison of the diagnosis accuracy of peripheral lung cancer CT scan and contrast-enhanced examination, the sensitivity, specificity, diagnostic index and accuracy of CT scan were lower than that of enhanced inspection, among which the CT enhanced screening diagnostic index was over 150%, thus having certain diagnostic significance. There was no significant difference in CT scan between lung cancer and tuberculosis (P>0.05). In the comparison of the enhanced CT examination findings of lung cancer and tuberculosis, the peaks of enhancement were 60.35±21.56 and 40.09±14.41, and the increments of enhancement were 41.03±13.72 and 12.42±15.04, the SPH/PPH were 22.01±1.93% and 4.53±1.08%, and thet values were 20.71, 18.47, and 3.78, all of which have statistical significance (P=0.000). Conclusion Compared to the CT plain scan, the CT contrast-enhanced scan can significantly improve the diagnostic accuracy of lung cancer; therefore, it has clinical significance in the diagnosis and differential diagnosis of lung cancer and tuberculosis.

     

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