Predictors for regional lymph node metastasis in T1 rectal cancer: a population-based SEER analysis

2016 ◽  
Vol 30 (10) ◽  
pp. 4405-4415 ◽  
Author(s):  
Walter Brunner ◽  
Bernhard Widmann ◽  
Lukas Marti ◽  
Ignazio Tarantino ◽  
Bruno M. Schmied ◽  
...  
2016 ◽  
Vol 40 (3) ◽  
pp. 456-460 ◽  
Author(s):  
Liheng Liu ◽  
Ming Liu ◽  
Zhenghan Yang ◽  
Wen He ◽  
Zhenchang Wang ◽  
...  

2021 ◽  
Vol 11 (2) ◽  
pp. 370-377
Author(s):  
Yang Wang ◽  
Yunsong Zheng ◽  
Qi Jia ◽  
Yuetong Wang

MR imaging omics is an emerging method that uses data representation algorithms to transform image data into high-dimensional digable feature spaces that capture different tumor phenotypic differences and may have predictive prognostic capabilities. In this paper, the MR imaging omics method is used to construct a predefined image omics quantitative feature database to quantitatively describe tumor heterogeneity. Combining traditional machine learning models, constructing image omics tags to create a scientific, quantitative and easy to use Prognostic analysis model for rectal cancer can predict and analyze the prognosis of patients with rectal cancer before surgery. The improved neural network-based method proposed in this paper does not require manual selection of parameters, and only a large amount of training data can train accurate prediction models. In addition, this paper also introduces the method of extracting lymph node metastasis parameters from MR image rectal cancer area, and the strategy for data missing value completion. Experiments show that the MR imaging of regional rectal cancer regional lymph node metastasis prediction model based on improved deep neural network is better than formula prediction method and traditional artificial neural network based model, which reduces the prediction error. Further analysis also shows the missing value completion proposed in this paper. The method can effectively strengthen the training of deep neural networks.


2016 ◽  
pp. 56-60
Author(s):  
Van Minh Nguyen ◽  
Hong Loi Nguyen ◽  
Thi Kim Anh Dang

Background: To evaluate the clinical, hystopathologycal features and correlation between lymph node metastasis and hystopathologycal grade in patients with carcinoma of the oral cavity. Materials and Methods: From July 2015 to July 2016, 32 patients with carcinoma of the oral cavity at Hue Central Hospital Results: The most common age group from 51 to 60 years and the male/female ratio was 1.9/1. Tumor were usually observed around the the tongue (40.6%) and oral floor (34.4%). Most of the tumor size is larger than 2 cm diameters (> 80%). The regional lymph node metastasis rate was 43.8% and there was a positive correlation between lymph node metastasis and tumor size (p <0.05). Squamous-cell carcinoma was mainly type of histopathology. Difference between the rate of lymph node metastasis in patient groups with different histopathological grade show no statistical significance (p> 0.05). Conclusion: the greater tumor, the higher regional lymph node metastasis. There is no relationship between the lymph node metastasis rate and histopathological grade of oral carcinoma. Key words: : carcinoma of oral cavity, tumor size, lymph node metastasis, histopathology


1993 ◽  
Vol &NA; (290) ◽  
pp. 168???173 ◽  
Author(s):  
KEIJI MATSUMOTO ◽  
SINSUKE HUKUDA ◽  
MICHIHITO ISHIZAWA ◽  
YASUO SARUHASHI ◽  
HIDETOSHI OKABE ◽  
...  

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