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CT Texture Analysis and Node-RADS CT Score of Lymph Nodes in Patients With Perihilar Cholangiocarcinoma

医学 淋巴结 淋巴 恶性肿瘤 放射科 阶段(地层学) 核医学 病理 生物 古生物学
作者
Jakob Leonhardi,Arsen Sabanov,Benedikt Schnarkowski,ANNE-KATHRIN HOEHN,Robert Sucher,Daniel Seehofer,Timm Denecke,Hans‐Jonas Meyer
出处
期刊:Anticancer Research [International Institute of Anticancer Research (IIAR) Conferences 1997. Athens, Greece. Abstracts]
卷期号:43 (11): 5089-5097 被引量:2
标识
DOI:10.21873/anticanres.16709
摘要

Background/Aim: Texture analysis can provide quantitative imaging markers from computed tomography (CT) images. The Node-RADS classification was recently published as a classification system to better characterize lymph nodes in oncological imaging. The present analysis investigated the diagnostic benefit of CT texture analysis and the Node-RADS classification to categorize and stage lymph nodes in patients with perihilar cholangiocarcinoma. Patients and Methods: Overall, 25 patients (n=9 females, 36%) with a mean age of 72.4±8.1 years were included. All patients were surgically resected and the lymph nodes were histopathologically analyzed. CT-texture analysis was performed with the Mazda package. All investigated lymph nodes were scored in accordance with the Node-RADS classification. Results: Regarding lymph node discrimination (N− versus N+), Node-RADS classification achieved an area under the curve (AUC) of 0.86 resulting in a sensitivity of 78% and a specificity of 86%. Multiple investigated texture features were different between negative and positive lymph nodes. The "S(0,1)SumVarnc" achieved the best AUC of 0.75 resulting in a sensitivity of 0.91 and a specificity of 0.67. Correlation analysis showed various statistically significant associations between CT texture features and Node-RADS score. Conclusion: Several CT texture features and the Node-RADS score derived from preoperative staging CT were associated with the malignancy of the hilar lymph nodes and might aid for preoperative staging. This could change surgical treatment planning in hilar cholangiocarcinoma.
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