Objectives: To develop and validate a contrast-enhanced CT-based radiomics nomogram for the diagnosis of neuroendocrine carcinoma of the digestive system.
Methods: The clinical data and contrast-enhanced CT images of 60 patients with pathologically confirmed neuroendocrine carcinoma of the digestive system and 60 patients with non-neuroendocrine carcinoma of the digestive system were retrospectively collected from August 2015 to December 2021 at Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, and randomly divided into a training cohort (n=84) and a validation cohort (n=36). Clinical characteristics were analyzed by logistic regression and a clinical diagnosis model was developed. Radiomics signature were established by extracting radiomic features from contrast-enhanced CT images. Based on the radiomic signature and clinical characteristics, radiomic nomogram was developed. ROC curves and Delong's test were used to evaluate the diagnostic efficacy of the three models, calibration curves and application decision curves were used to analyze the accuracy and clinical application value of nomogram.
Results: Logistic regression results showed that TNM stage (stage IV) (OR 6.8, 95% CI 1.320-43.164, =0. 028) was an independent factor affecting the diagnosis for NECs of the digestive system, and a clinical model was constructed based on TNM stage (stage IV). The AUCs of the clinical model, radiomics signature, and radiomics nomogram for the diagnosis of NECs of the digestive system in the training, validation cohorts and pooled patients were 0.643, 0.893, 0.913; 0.722, 0.867, 0.932 and 0.667, 0.887, 0.917 respectively. The AUCs of radiomics signature and radiomics nomogram were higher than clinical model, with statistically significant difference (Z=4.46, 6.85, both < 0.001); the AUC difference between radiomics signature and radiomics nomogram was not statistically significant (Z=1.63, = 0.104). The results of the calibration curve showed favorable agreement between the predicted values of the nomogram and the pathological results, and the decision curve analysis indicated that the nomogram had favorable application in clinical practice.
Conclusions: The nomogram constructed based on contrast-enhanced CT radiomics and clinical characteristics was able to effectively diagnose neuroendocrine carcinoma of the digestive system.
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http://dx.doi.org/10.3389/fendo.2023.1155307 | DOI Listing |
Parasitol Res
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Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Calea Manaștur 3-5, 400372, Cluj-Napoca, Romania.
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December 2024
Department of Colorectal Surgery, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing210029, China.
Horseshoe anal fistula is one of the most challenging subtypes of complex anal fistulas, closely related to the failure of anal fistula surgery and postoperative recurrence. Accurate preoperative assessment, correct classification, and appropriate surgical plans are crucial for improving treatment efficacy. This article primarily explores the clinical classification of horseshoe anal fistulas and the applicability of mainstream surgical techniques in different types of horseshoe anal fistulas, focusing on their cure rates, recurrence rates, and fecal continence, to assist surgeons to make reasonable surgical plans when treating horseshoe anal fistulas.
View Article and Find Full Text PDFTrials
December 2024
Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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December 2024
Shiraz Organ Transplant Center,, Abu Ali Sina Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
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Central Laboratory, Chongqing Public Health Medical Centre, Chongqing, China.
Background: In acquired immunodeficiency syndrome patients, Talaromyces marneffei infections are mostly disseminated and may involve the skin, mucosa, respiratory system, digestive system, lymphatic system, and as some reports indicate, the nervous system. Mp1p, a cell wall-specific polysaccharide in Talaromyces marneffei, is used for laboratory diagnosis of Talaromyces marneffei in blood and urine samples. However, Cerebrospinal fluid Mp1p diagnosis of Talaromyces marneffei central nervous system infection has not been reported.
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