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Chinese Journal of Medical Ultrasound (Electronic Edition) ›› 2024, Vol. 21 ›› Issue (11): 1048-1056. doi: 10.3877/cma.j.issn.1672-6448.2024.11.007

• Thoracic Ultrasound • Previous Articles     Next Articles

Value of multimodal ultrasound combined with serum tumor markers in differential diagnosis of benign and malignant peripheral pulmonary lesions

Rui Wang1, Wei Chen2, Jinping Wang1,(), Baoqi Li1   

  1. 1.Department of Ultrasound, First Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230031, China
    2.Department of Respiratory, First Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230031, China
  • Received:2024-04-06 Online:2024-11-01 Published:2025-01-24
  • Contact: Jinping Wang

Abstract:

Objective

To evaluate the value of multimodal ultrasound consisting of grayscale ultrasound, color Doppler flow imaging, and contrast-enhanced ultrasound (CEUS) combined with serological tumor markers in the differential diagnosis of benign and malignant peripheral pulmonary lesions.

Methods

A retrospective analysis was performed on 65 patients who underwent contrast-enhanced ultrasound examination for peripheral pulmonary lesions at the First Affiliated Hospital, Anhui University of Chinese Medicine from January 2022 to December 2023. They were divided into either a benign group or a malignant group according to the pathological results. All patients underwent multimodal ultrasound examination and detection of serological tumor markers. Lesion maximum diameter, lesion morphology, blood flow morphology, blood flow signal grade, internal echo, boundary, bronchial sign,necrosis, contrast agent arrival time (AT), the difference of arrival time between the lesion and the surrounding lung tissue (TAT), contrast agent enhancement mode, perfusion mode, and the combination of serum tumor markers were recorded for univariate analysis. All factors considered statistically significant in the univariate analysis were included in Logistic regression analysis. A multi-factor combined prediction model for peripheral pulmonary lesions was established and receiver operating characteristic (ROC) curve analysis was performed to evaluate the diagnostic efficiency of the model.

Results

Univariate analysis showed that there were statistically significant differences in lesion morphology on gray-scale ultrasound, blood flow morphology on Doppler flow imaging, AT and TAT on contrast-enhanced ultrasound, and the combination of serum tumor markers between benign and malignant peripheral pulmonary lesions (P<0.05). Logistic regression analysis showed that lesion morphology on gray-scale ultrasound, blood flow morphology on color Doppler flow imaging, TAT on contrast-enhanced ultrasound, and the combination of serum tumor markers were statistically significant in the differentiation of benign and malignant peripheral pulmonary lesions. The regression equation is: Logit(P)=-6.996+0.909Xlesionmorphology+1.521Xbloodflowmorphology+2.927XTAT+2.553Xthecombinationofserumtumormarkers. The ROC curves of lesion morphology on gray-scale ultrasound,blood flow morphology on color Doppler flow imaging, TAT on contrast-enhanced ultrasound, the combination of serum tumor markers, multimodal ultrasound, and multimodal ultrasound combined with serological tumor markers for the prediction of the nature of peripheral pulmonary lesions were plotted. The area under the curve of multimodal ultrasound combined with serological tumor markers was the largest (0.904).

Conclusion

Lesion morphology on gray scale ultrasound, blood flow morphology on color Doppler flow imaging, TAT on contrast-enhanced ultrasound, and the combination of serum tumor markers each have appreciated diagnostic value in differentiating benign and malignant peripulmonary lesions, but their combination has higher diagnostic efficacy.

Key words: Contrast agent, Peripheral pulmonary lesion, Arrival time, Serum tumor markers

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