The diagnostic value of vascular architecture in solid solitary pulmonary nodules quantified by dynamic contrast enhanced MRI.

IF 2.1 3区 医学 Q3 RESPIRATORY SYSTEM
Journal of thoracic disease Pub Date : 2025-01-24 Epub Date: 2025-01-22 DOI:10.21037/jtd-24-1467
Liang Fu, Xiaoyu Pan, Haiming Ding, Ying Qin, Wanyun Huang, Shunzu Lu, Kai Li, Liling Long
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引用次数: 0

Abstract

Background: Alterations in the vascular microenvironment of cancer have gradually gained widespread attention in oncology research, and early qualitative diagnosis using noninvasive examination techniques is crucial in clinical practice. This study aimed to explore the value of quantitative parameters of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in the assessment of vascular architecture of solid solitary pulmonary nodules (SSPNs).

Methods: DCE-MRI scan images of a total of 79 patients with SSPNs from November 2021 to December 2023 were prospectively analyzed. Quantitative permeability parameters Ktrans, Kep, and Ve values of the lesions were measured, labeled immunohistochemically with CD31 microvessel density (CD31-MVD), smooth muscle actin microvessel density (SMA-MVD), and vascular endothelial growth factor (VEGF), and quantitative values of vascular architectural parameters were obtained using the image analysis software Image-J. The diagnostic efficacy of quantitative permeability parameters for the diagnosis of malignant SSPNs was analyzed by receiver operating characteristic (ROC) curves using surgical pathology findings as the gold standard for the diagnosis of malignant SSPNs. Spearman's correlation analysis was used to evaluate the relationship between quantitative permeability parameters and vascular construct parameters.

Results: The study included 51 female patients (64.6%) with a mean age of 50.5±11.5 years. Only 21 patients (26.6%) had a smoking history, and 30 patients (38.0%) had a normal weight. Statistically significant differences were found between benign and malignant SSPNs subgroups in Ktrans and Ve values in quantitative permeability parameters, and in SMA-MVD and microvascular perfusion index (MPI) in vascular conformation parameters (P<0.05). Ktrans and Ve values showed high diagnostic value for malignant SSPNs [area under the curve (AUC), 0.813 and 0.759]. Ktrans, Kep, and Ve were significantly positively correlated with CD31-MVD, with r-values of 0.857, 0.830, and 0.798 (P<0.05); they were also significantly positively correlated with VEGF, with r-values of 0.851, 0.859, and 0.764 (P<0.05); and Ktrans and Kep were significantly negatively correlated with MPI, with r-values were -0.779 and -0.864 (P<0.05).

Conclusions: The quantitative permeability parameters of DCE-MRI correlate with some of the vascular architectural parameters, and magnetic resonance image-based quantification of pulmonary nodal vascular architecture provides a noninvasive method for the differential diagnosis of SSPNs.

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来源期刊
Journal of thoracic disease
Journal of thoracic disease RESPIRATORY SYSTEM-
CiteScore
4.60
自引率
4.00%
发文量
254
期刊介绍: The Journal of Thoracic Disease (JTD, J Thorac Dis, pISSN: 2072-1439; eISSN: 2077-6624) was founded in Dec 2009, and indexed in PubMed in Dec 2011 and Science Citation Index SCI in Feb 2013. It is published quarterly (Dec 2009- Dec 2011), bimonthly (Jan 2012 - Dec 2013), monthly (Jan. 2014-) and openly distributed worldwide. JTD received its impact factor of 2.365 for the year 2016. JTD publishes manuscripts that describe new findings and provide current, practical information on the diagnosis and treatment of conditions related to thoracic disease. All the submission and reviewing are conducted electronically so that rapid review is assured.
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