Abstract
Objectives
To compare between the diagnostic performance of 3.0-T MRI and CT for aorta and tracheobronchial invasion in patients with esophageal cancer (EC).
Methods
We prospectively included patients with pathologically confirmed EC from November 2018 to June 2021, who had baseline stage of T3-4N0-2M0 and restaging after neoadjuvant chemotherapy. All patients underwent contrast-enhanced CT and MRI of the thorax. Two independent blinded radiologists scored image quality and the presence of invasion. Agreements between the two readers were calculated using kappa test. The sensitivity, specificity, accuracy, positive predict value (PPV), and negative predict value (NPV) of MRI and CT in evaluating invasion were calculated. The net reclassification index (NRI) was used to evaluate the change in the number of patients correctly classified by MRI and CT.
Results
A total of 70 patients (64.8 ± 9.0 years; 53 men) were enrolled. Inter-reader agreements of image quality scores and presence of invasion by MRI and CT between the two readers were almost perfect (kappa > 0.80). The accuracy of MRI in evaluating thoracic aorta invasion was significantly higher than that of CT (reader 1: 90.0% vs. 71.4%; reader 2: 92.9% vs. 70.0%, respectively), and the accuracy of MRI in evaluating tracheobronchial invasion also was significantly higher than that of CT (reader 1: 92.9% vs. 72.9%; reader 2: 95.7% vs. 70.0%, respectively). NRI values were positive in both the evaluation of aorta and tracheobronchial invasion.
Conclusions
The accuracy of 3-T MRI in determining thoracic aorta and tracheobronchial invasion is significantly higher than that of CT.
Key Points
• 3.0-T MRI was significantly more accurate than CT in assessing invasion of the thoracic aorta in patients with esophageal cancer.
• 3.0-T MRI was also significantly more accurate than CT in assessing tracheobronchial invasion in patients with esophageal cancer.
• 3.0-T MRI has a higher diagnostic performance than CT in evaluating patients with suspected aortic or tracheobronchial invasion in esophageal cancer.
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Data Availability
The data that support the findings of this study are available from the corresponding author [Jinrong Qu] upon reasonable request.
Abbreviations
- DWI:
-
Diffusion weighted imaging
- EC:
-
Esophageal cancer
- ESCC:
-
Esophageal squamous cell carcinoma
- nCT:
-
Neoadjuvant chemotherapy
- NPV:
-
Negative predict value
- NRI:
-
Net reclassification index
- PPV:
-
Positive predict value
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Funding
This study has received funding by the Projects of the General Programs of the National Natural Science Foundation of China (No. 81972802, No. 82271979), Henan Province Medical Science and Technology Research Program Provincial Department to jointly build key projects (No. SBGJ202002021, No. LHGJ20200196), special funding of the Henan Health Science and Technology Innovation Talent Project (No. YXKC2020011), and Henan Province focuses on research and development and promotion (No. 212102310133).
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The scientific guarantor of this publication is Jinrong Qu.
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No complex statistical methods were necessary for this paper.
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Written informed consent was waived by the Institutional Review Board.
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The protocol was approved by Henan Cancer Hospital Review Board (NCT03635619) and informed consent was waived. All the authors have followed the applicable ethical standards to maintain the research integrity without any duplication, fraud, or plagiarism issues.
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• diagnostic or prognostic study
• performed at one institution
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Zhao, K., Chu, F., Wang, Z. et al. Aorta and tracheobronchial invasion in esophageal cancer: comparing diagnostic performance of 3.0-T MRI and CT. Eur Radiol 33, 4962–4972 (2023). https://doi.org/10.1007/s00330-023-09425-2
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DOI: https://doi.org/10.1007/s00330-023-09425-2