scholarly journals Metrics and Textural Features of MRI Diffusion to Improve Classification of Pediatric Posterior Fossa Tumors

2013 ◽  
Vol 35 (5) ◽  
pp. 1009-1015 ◽  
Author(s):  
D. Rodriguez Gutierrez ◽  
A. Awwad ◽  
L. Meijer ◽  
M. Manita ◽  
T. Jaspan ◽  
...  
Keyword(s):  
Posterior Fossa ◽  
Textural Features ◽  
Posterior Fossa Tumors

scholarly journals MEDU-48. MRI TEXTURAL FEATURES CAN DIFFERENTIATE PEDIATRIC POSTERIOR FOSSA TUMORS

2017 ◽  
Vol 19 (suppl_4) ◽  
pp. iv47-iv47
Author(s):  
Niha Beig ◽  
Ramon Correa ◽  
Rajat Thawani ◽  
Prateek Prasanna ◽  
Chaitra Badve ◽  
...  
Keyword(s):  
Posterior Fossa ◽  
Textural Features ◽  
Posterior Fossa Tumors

scholarly journals Classification of Pediatric Posterior Fossa Tumors using Convolutional Neural Network and Tabular Data

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Moran Artzi ◽  
Erez Redmard ◽  
Oron Tzemach ◽  
Jonathan Zeltser ◽  
Omri Gropper ◽  
...  
Keyword(s):  
Neural Network ◽  
Convolutional Neural Network ◽  
Posterior Fossa ◽  
Tabular Data ◽  
Posterior Fossa Tumors

scholarly journals A Phantom Study to Investigate Robustness and Reproducibility of Grey Level Co-Occurrence Matrix (GLCM)-Based Radiomics Features for PET

2021 ◽  
Vol 11 (2) ◽  
pp. 535
Author(s):  
Mahbubunnabi Tamal
Keyword(s):  
Textural Features ◽  
Strongly Correlated ◽  
Segmentation Method ◽  
Diagnosis And Prognosis ◽  
Radiotracer Uptake ◽  
Positron Emission ◽  
Occurrence Matrix ◽  
The Impact ◽  
Robust To Noise

Quantification and classification of heterogeneous radiotracer uptake in Positron Emission Tomography (PET) using textural features (termed as radiomics) and artificial intelligence (AI) has the potential to be used as a biomarker of diagnosis and prognosis. However, textural features have been predicted to be strongly correlated with volume, segmentation and quantization, while the impact of image contrast and noise has not been assessed systematically. Further continuous investigations are required to update the existing standardization initiatives. This study aimed to investigate the relationships between textural features and these factors with 18F filled torso NEMA phantom to yield different contrasts and reconstructed with different durations to represent varying levels of noise. The phantom was also scanned with heterogeneous spherical inserts fabricated with 3D printing technology. All spheres were delineated using: (1) the exact boundaries based on their known diameters; (2) 40% fixed; and (3) adaptive threshold. Six textural features were derived from the gray level co-occurrence matrix (GLCM) using different quantization levels. The results indicate that homogeneity and dissimilarity are the most suitable for measuring PET tumor heterogeneity with quantization 64 provided that the segmentation method is robust to noise and contrast variations. To use these textural features as prognostic biomarkers, changes in textural features between baseline and treatment scans should always be reported along with the changes in volumes.

Shunt Metastases in Posterior Fossa Tumors

1979 ◽  
Vol 10 (03) ◽  
pp. 296-300 ◽  
Author(s):  
Rainer Oberbauer ◽  
Hans Tritthart ◽  
Peter Ascher ◽  
Gerhard Walter ◽  
H. Becker
Keyword(s):  
Posterior Fossa ◽  
Posterior Fossa Tumors

PAEDIATRIC POSTERIOR FOSSA TUMORS : AN EPIDEMIOLOGICAL AND ANALYTICAL STUDY AT TERTIARY CARE CENTRE IN EASTERN INDIA

2021 ◽  
pp. 54-56
Author(s):  
S. I. Sadique ◽  
Md. Shahid Alam ◽  
S. Chatterjee ◽  
S. Ghosh
Keyword(s):  
Early Diagnosis ◽  
Posterior Fossa ◽  
Tertiary Care ◽  
Male Dominance ◽  
Morbidity And Mortality ◽  
Posterior Fossa Tumors ◽  
Tertiary Care Centre ◽  
Therapeutic Modalities ◽  
Common Location ◽  
Group 5

Introduction: Posterior fossa is the commonest site of primary intracranial tumors in children, accounting for 45-60% of 1 all pediatric tumors . The aims and objectives of the study is to analyse the incidence, clinical features, surgical outcome and complications in paediatric patients with posterior fossa tumor. Material and Methods: The present study is a non-randomized prospective observational study, conducted in the department of neurosurgery, Bangur Institute of Neurosciences (B.I.N), IPGME & R, Kolkata from January 2019 to December 2020. Sample size is 50. Observations & Results: Out of 480 cases of total CNS tumors who presented in the study period, 96 cases(20%) were of paediatric posterior fossa tumors. Male dominance was seen i.e. 32 cases(64%). Most of them were in the age group 5-12 years i.e. 30 cases(60%). Headache and vomiting was the most common presenting complain present in 41 cases(82%). Fourth Ventricle was the most common location, 30 cases(60%) with Medulloblastoma being the most common tumor, 24 cases(48%). Brainstem involvement was seen in 22 cases(44%). Post-op hydrocephalus and cerebellar mutism were seen in 6 cases(12%) each. Overall mortality was 8%(4 cases). Conclusion: Posterior fossa tumors are critical brain lesions with signicant neurological morbidity and mortality. Early diagnosis of posterior fossa tumors is vital to prevent potential risks of Brain stem compression, herniation, hydrocephalus and death. With rapid advancement in radiology and the advent of modern therapeutic modalities, early diagnosis and treatment reduced the morbidity and mortality rate and improved prognosis among the patients.

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