scispace - formally typeset
Search or ask a question

What are the types of features extracted in radiomics? 


Best insight from top research papers

Radiomics involves extracting various types of features from medical images that are not readily visible to the human eye. These features include first-order statistics, shape characteristics, gray-level characteristics, and deep radiomic features, which are abstract features derived from deeper layers of convolutional neural networks . Additionally, radiomics can encompass texture and morphological features, as well as features extracted from pretrained deep networks, providing a wide range of information for diagnosis, prognosis, and therapy planning . The extraction of these diverse features allows for a comprehensive analysis of medical images, aiding in the identification of patterns and characteristics that can be valuable in clinical decision-making processes.

Answers from top 4 papers

More filters
Papers (4)Insight
Radiomics extracts first-order statistics, 2D/3D shape, and gray level features from medical images for tumor characterization, aiding in diagnosis, prognosis, and therapy in cancer research.
Radiomics extracts features like SUV, intensity histograms, and deep radiomic features from radiological data, enhancing imaging insights beyond basic quantitation for semantic reporting in veterinary radiology.
Radiomics typically extracts generic texture and morphological features, and alternatively, features extracted from pretrained deep networks are used, impacting predictive performance in radiomic models.
Radiomics extracts CT texture features like those studied in MATLAB and Pyradiomics implementations, focusing on reproducibility in lung and head/neck cancer datasets.

Related Questions

What is better radiomics or proteomics?4 answersRadiomics and proteomics are two different fields of study and cannot be directly compared as to which one is better. Radiomics focuses on quantitative image analysis from radiographic image data, while proteomics is the study of proteins and their functions. Both fields have their own advantages and applications. Radiomics has advantages such as standardized methodology, the ability to compute features in multi-dimensional images, and associations with genomic and pathological abnormalities. On the other hand, proteomics provides insights into the functions and interactions of proteins, which can be valuable in understanding disease mechanisms and developing targeted therapies. Ultimately, the choice between radiomics and proteomics depends on the specific research question or clinical application at hand.
What are some common biomarkers used in radiomics research?4 answersRadiomics research utilizes various biomarkers to analyze medical images and predict disease behavior and treatment outcomes. One common biomarker used in radiomics is tumor-infiltrating lymphocytes (TILs). TILs are assessed through non-invasive methods such as radiomics analysis of magnetic resonance imaging (MRI). Another biomarker used in radiomics is PD-L1 expression, which is assessed through radiomic analyses of computed tomography (CT), MRI, and positron emission tomography (PET). Additionally, radiomic features extracted from CT images have shown potential as prognostic biomarkers for survival in melanoma patients. These features reflect the tumor immune-microenvironment and can be used to predict progression-free survival and overall survival. In non-small cell lung cancer (NSCLC) patients treated with immunotherapy, radiomic features have been used to develop models for predicting clinical characteristics and treatment outcomes, such as durable disease control, TTF1 expression, histology, and PD-L1 expression.
What is the role of radiomics in the analysis of medical images?5 answersRadiomics plays a crucial role in the analysis of medical images, particularly in the field of oncology. It involves the extraction of quantitative features from medical images, which are then converted into high-dimensional data for cancer diagnosis and prognosis. Radiomics has been applied within oncology to enhance diagnosis and prognostication, aiding in clinical decision-making and the delivery of precision medicine. By utilizing radiomics, clinicians can tap into vast databases of medical images, allowing them to identify patterns and similarities among patients with similar profiles for treatments or clinical trials worldwide. In addition to oncology, radiomics has also shown promise in cardiovascular imaging, improving the diagnostic accuracy of imaging techniques such as coronary computed tomography angiography (CCTA) and magnetic resonance imaging (MRI) in various cardiovascular diseases. However, the implementation of radiomics in clinical routine is still limited due to the lack of standardized parameters acquisition and inconsistent radiomic methods.
How does image quality impact radiomics features calculation?5 answersImage quality has a significant impact on the calculation of radiomics features. Variations in image quality, such as image acquisition/reconstruction settings and patient motion, can affect the reproducibility of radiomics analysis. Improved spatial resolution in imaging systems can lead to better visualization of smaller structures and more details, impacting textural features in CT images. The accuracy of radiomic features in 4D-CBCT is affected by image quality, and deep learning-based image enhancement can improve the accuracy of these features. Imaging, segmentation, and processing conditions, such as quantization range, bin number, signal-to-noise ratio, and unintended outliers, can also influence the measurement of radiomics features. Therefore, it is important to optimize image quality and processing parameters to ensure the reliability and reproducibility of radiomics studies.
What are the types of radiomic features?4 answersRadiomic features are quantitative information extracted from medical images using specific data characterization algorithms. These features can be used to predict clinical variables such as disease characteristics, genetics, and therapy response. In the context of non-small cell lung cancer (NSCLC), radiomic features have been investigated for their correlation with prognosis and response to therapy. In the study of Alzheimer's disease (AD) prediction from Mild Cognitive Impairment (MCI), radiomic features extracted from MRI scans were found to be potential predictors of the conversion from MCI to AD. Additionally, radiomic features derived from dual-energy CT (DECT) scans have been studied for their robustness across different DECT scanners. Overall, radiomic features have shown promise in predicting tumor grade, treatment response, and disease progression, but further research is needed to improve their reproducibility and validate their clinical utility.
What is the state of art for cancer detection using radiomics?5 answersRadiomics is an emerging field that involves the extraction of quantitative features from medical images for cancer detection. It has shown promise in various types of cancer, including hypopharyngeal squamous cell carcinoma (HPSCC), colorectal cancer (CRC), rectal cancer (RC), breast cancer (BC), and glioblastoma. Radiomics has been used to evaluate tumor characteristics, predict treatment response, assess prognosis, and guide personalized treatment strategies. It has been applied to different imaging modalities such as computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/CT (PET/CT). Radiomics has shown potential in predicting lymph node metastasis, detecting gene mutations, stratifying patients into high-risk groups, and predicting survival outcomes. However, there are challenges in workflow standardization and limitations in objective cohort conditions that need to be addressed. Further studies are needed to validate the clinical impact and potential of radiomics in cancer detection and management.