102 research outputs found
The Combination of Mammography and MRI for Diagnosing Breast Cancer Using Fuzzy NN and SVM
Breast cancer is one of the common cancers among women so that early diagnosing of it can effectively help its treatment in this study, considering combination of Mammography and MRI pictures, we will try to recognize glands in existing pictures which identify all around of gland complete and precisely and separate it completely. In this method using artificial intelligence algorithm such as Affine transformation, Gabor filter, neural network, and support vector machine, image analysis will be carried out. The accuracy of proposed method is 98.14. In this work a special framework is presented which simplifies cancer diagnosis. The algorithm of proposed method is tested on z16 images. High speed and lack of human error are the most important factors in proposed intelligent system
Early Detection of Breast Cancer Using Machine Learning Techniques
Cancer is the second cause of death in the world. 8.8 million patients died due to cancer in 2015. Breast cancer is the leading cause of death among women. Several types of research have been done on early detection of breast cancer to start treatment and increase the chance of survival. Most of the studies concentrated on mammogram images. However, mammogram images sometimes have a risk of false detection that may endanger the patient’s health. It is vital to find alternative methods which are easier to implement and work with different data sets, cheaper and safer, that can produce a more reliable prediction. This paper proposes a hybrid model combined of several Machine Learning (ML) algorithms including Support Vector Machine (SVM), Artificial Neural Network (ANN), K-Nearest Neighbor (KNN), Decision Tree (DT) for effective breast cancer detection. This study also discusses the datasets used for breast cancer detection and diagnosis. The proposed model can be used with different data types such as image, blood, etc
Automatic BIRAD scoring of breast cancer mammograms
A computer aided diagnosis system (CAD) is developed to fully characterize and
classify mass to benign and malignancy and to predict BIRAD (Breast Imaging
Reporting and Data system) scores using mammographic image data. The CAD
includes a preprocessing step to de-noise mammograms. This is followed by an
active counter segmentation to deforms an initial curve, annotated by a
radiologist, to separate and define the boundary of a mass from background. A
feature extraction scheme wasthen used to fully characterize a mass by extraction
of the most relevant features that have a large impact on the outcome of a patient
biopsy. For this thirty-five medical and mathematical features based on intensity,
shape and texture associated to the mass were extracted. Several feature selection
schemes were then applied to select the most dominant features for use in next
step, classification. Finally, a hierarchical classification schemes were applied on
those subset of features to firstly classify mass to benign (mass with BIRAD score
2) and malignant mass (mass with BIRAD score over 4), and secondly to sub classify
mass with BIRAD score over 4 to three classes (BIRAD with score 4a,4b,4c).
Accuracy of segmentation performance were evaluated by calculating the degree
of overlapping between the active counter segmentation and the manual
segmentation, and the result was 98.5%. Also reproducibility of active counter
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using different manual initialization of algorithm by three radiologists were
assessed and result was 99.5%.
Classification performance was evaluated using one hundred sixty masses (80
masses with BRAD score 2 and 80 mass with BIRAD score over4). The best result
for classification of data to benign and malignance was found using a combination
of sequential forward floating feature (SFFS) selection and a boosted tree hybrid
classifier with Ada boost ensemble method, decision tree learner type and 100
learners’ regression tree classifier, achieving 100% sensitivity and specificity in
hold out method, 99.4% in cross validation method and 98.62 % average accuracy
in cross validation method.
For further sub classification of eighty malignance data with BIRAD score of over
4 (30 mass with BIRAD score 4a,30 masses with BIRAD score 4b and 20 masses with
BIRAD score 4c), the best result achieved using the boosted tree with ensemble
method bag, decision tree learner type with 200 learners Classification, achieving
100% sensitivity and specificity in hold out method, 98.8% accuracy and 98.41%
average accuracy for ten times run in cross validation method.
Beside those 160 masses (BIRAD score 2 and over 4) 13 masses with BIRAD score
3 were gathered. Which means patient is recommended to be tested in another
medical imaging technique and also is recommended to do follow-up in six
months. The CAD system was trained with mass with BIRAD score 2 and over 4 also
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it was further tested using 13 masses with a BIRAD score of 3 and the CAD results
are shown to agree with the radiologist’s classification after confirming in six
months follow up.
The present results demonstrate high sensitivity and specificity of the proposed
CAD system compared to prior research. The present research is therefore
intended to make contributions to the field by proposing a novel CAD system,
consists of series of well-selected image processing algorithms, to firstly classify
mass to benign or malignancy, secondly sub classify BIRAD 4 to three groups and
finally to interpret BIRAD 3 to BIRAD 2 without a need of follow up study
Depth Segmentation Method for Cancer Detection in Mammography Images
Breast cancer detection remains a subject matter of intense and also a stream that will create a path for numerous debates. Mammography has long been the mainstay of breast cancer detection and is the only screening test proven to reduce mortality. Computer-aided diagnosis (CAD) systems have the potential to assist radiologists in the early detection of cancer. Many techniques were introduced based on SVM classifier, spatial and frequency domain, active contour method, k-NN clustering method but these methods have so many disadvantages on the SNR ratio, efficiency etc. The quality of detection of cancer cells is dependent with the segmentation of the mammography image. Here a new method is proposed for segmentation. This algorithm focuses to segment the image depth wise and also coloured based segmentation is implemented. Here the feature identification and detection of malignant and benign cells are done more easily and also to increase the efficiency to detect the early stages of breast cancer through mammography images. In which the relative signal enhancement technique is also done for high dynamic range images. Markovian random function can be used in the depth segmentation. Markov Random Field (MRF) is used in mammography images. It is because this method can model intensity in homogeneities occurring in these images. This will be helpful to find the featured tumor
DOI: 10.17762/ijritcc2321-8169.15023
Machine Learning Algorithms for Breast Cancer Diagnosis: Challenges, Prospects and Future Research Directions
Early diagnosis of breast cancer does not only increase the chances of survival but also control the diffusion of cancerous cells in the body. Previously, researchers have developed machine learning algorithms in breast cancer diagnosis such as Support Vector Machine, K-Nearest Neighbor, Convolutional Neural Network, K-means, Fuzzy C-means, Neural Network, Principle Component Analysis (PCA) and Naive Bayes. Unfortunately these algorithms fall short in one way or another due to high levels of computational complexities. For instance, support vector machine employs feature elimination scheme for eradicating data ambiguity and detecting tumors at initial stage. However this scheme is expensive in terms of execution time. On its part, k-means algorithm employs Euclidean distance to determine the distance between cluster centers and data points. However this scheme does not guarantee high accuracy when executed in different iterations. Although the K-nearest Neighbor algorithm employs feature reduction, principle component analysis and 10 fold cross validation methods for enhancing classification accuracy, it is not efficient in terms of processing time. On the other hand, fuzzy c-means algorithm employs fuzziness value and termination criteria to determine the execution time on datasets. However, it proves to be extensive in terms of computational time due to several iterations and fuzzy measure calculations involved. Similarly, convolutional neural network employed back propagation and classification method but the scheme proves to be slow due to frequent retraining. In addition, the neural network achieves low accuracy in its predictions. Since all these algorithms seem to be expensive and time consuming, it necessary to integrate quantum computing principles with conventional machine learning algorithms. This is because quantum computing has the potential to accelerate computations by simultaneously carrying out calculation on many inputs. In this paper, a review of the current machine learning algorithms for breast cancer prediction is provided. Based on the observed shortcomings, a quantum machine learning based classifier is recommended. The proposed working mechanisms of this classifier are elaborated towards the end of this paper
A Novel Hybrid K-Means and GMM Machine Learning Model for Breast Cancer Detection
Breast cancer is the second leading cause of death among a large number of women worldwide. It may be challenging for radiologists to diagnose and treat breast cancer. Consequently, primary care improves disease prevention and death. Early detection increases treatment options and saves life, which is the major target of this research. This research indicates the versatility of the methodology by integrating contemporary segmentation approaches with machine learning methods, which are developing areas of research. In the pre-processing process, an adaptive median filter is utilized for noise removal, enhancement of image quality, conservation of edges, and smoothing. This research makes a significant contribution by proposing a new parameter for evaluating K-means and a Gaussian mixture model (GMM) performance. A hybrid combination of segmentation and detection was applied to breast cancer. The proposed technique is significant for classifying benign and malignant tumors. The simulated results are discussed and evaluated to determine the competence of this method for the early diagnosis of breast cancer. This method allows medical experts to recognize breast cancer at a faster rate and provide higher accuracy. An ANOVA test was used to determine the multi-variant analysis and prediction rate for the proposed method
Applications of computational methods in biomedical breast cancer imaging diagnostics: A review
With the exponential increase in new cases coupled with an increased mortality rate,
cancer has ranked as the second most prevalent cause of death in the world. Early detection is
paramount for suitable diagnosis and effective treatment of different kinds of cancers, but this is
limited to the accuracy and sensitivity of available diagnostic imaging methods. Breast cancer is
the most widely diagnosed cancer among women across the globe with a high percentage of total
cancer deaths requiring an intensive, accurate, and sensitive imaging approach. Indeed, it is treatable
when detected at an early stage
Implementing decision tree-based algorithms in medical diagnostic decision support systems
As a branch of healthcare, medical diagnosis can be defined as finding the disease based on the signs and symptoms of the patient. To this end, the required information is gathered from different sources like physical examination, medical history and general information of the patient. Development of smart classification models for medical diagnosis is of great interest amongst the researchers. This is mainly owing to the fact that the machine learning and data mining algorithms are capable of detecting the hidden trends between features of a database. Hence, classifying the medical datasets using smart techniques paves the way to design more efficient medical diagnostic decision support systems.
Several databases have been provided in the literature to investigate different aspects of diseases. As an alternative to the available diagnosis tools/methods, this research involves machine learning algorithms called Classification and Regression Tree (CART), Random Forest (RF) and Extremely Randomized Trees or Extra Trees (ET) for the development of classification models that can be implemented in computer-aided diagnosis systems. As a decision tree (DT), CART is fast to create, and it applies to both the quantitative and qualitative data. For classification problems, RF and ET employ a number of weak learners like CART to develop models for classification tasks.
We employed Wisconsin Breast Cancer Database (WBCD), Z-Alizadeh Sani dataset for coronary artery disease (CAD) and the databanks gathered in Ghaem Hospital’s dermatology clinic for the response of patients having common and/or plantar warts to the cryotherapy and/or immunotherapy methods. To classify the breast cancer type based on the WBCD, the RF and ET methods were employed. It was found that the developed RF and ET models forecast the WBCD type with 100% accuracy in all cases. To choose the proper treatment approach for warts as well as the CAD diagnosis, the CART methodology was employed. The findings of the error analysis revealed that the proposed CART models for the applications of interest attain the highest precision and no literature model can rival it. The outcome of this study supports the idea that methods like CART, RF and ET not only improve the diagnosis precision, but also reduce the time and expense needed to reach a diagnosis. However, since these strategies are highly sensitive to the quality and quantity of the introduced data, more extensive databases with a greater number of independent parameters might be required for further practical implications of the developed models
Cancer diagnosis using deep learning: A bibliographic review
In this paper, we first describe the basics of the field of cancer diagnosis, which includes steps of cancer diagnosis followed by the typical classification methods used by doctors, providing a historical idea of cancer classification techniques to the readers. These methods include Asymmetry, Border, Color and Diameter (ABCD) method, seven-point detection method, Menzies method, and pattern analysis. They are used regularly by doctors for cancer diagnosis, although they are not considered very efficient for obtaining better performance. Moreover, considering all types of audience, the basic evaluation criteria are also discussed. The criteria include the receiver operating characteristic curve (ROC curve), Area under the ROC curve (AUC), F1 score, accuracy, specificity, sensitivity, precision, dice-coefficient, average accuracy, and Jaccard index. Previously used methods are considered inefficient, asking for better and smarter methods for cancer diagnosis. Artificial intelligence and cancer diagnosis are gaining attention as a way to define better diagnostic tools. In particular, deep neural networks can be successfully used for intelligent image analysis. The basic framework of how this machine learning works on medical imaging is provided in this study, i.e., pre-processing, image segmentation and post-processing. The second part of this manuscript describes the different deep learning techniques, such as convolutional neural networks (CNNs), generative adversarial models (GANs), deep autoencoders (DANs), restricted Boltzmann’s machine (RBM), stacked autoencoders (SAE), convolutional autoencoders (CAE), recurrent neural networks (RNNs), long short-term memory (LTSM), multi-scale convolutional neural network (M-CNN), multi-instance learning convolutional neural network (MIL-CNN). For each technique, we provide Python codes, to allow interested readers to experiment with the cited algorithms on their own diagnostic problems. The third part of this manuscript compiles the successfully applied deep learning models for different types of cancers. Considering the length of the manuscript, we restrict ourselves to the discussion of breast cancer, lung cancer, brain cancer, and skin cancer. The purpose of this bibliographic review is to provide researchers opting to work in implementing deep learning and artificial neural networks for cancer diagnosis a knowledge from scratch of the state-of-the-art achievements
Digital Image Processing Applications
Digital image processing can refer to a wide variety of techniques, concepts, and applications of different types of processing for different purposes. This book provides examples of digital image processing applications and presents recent research on processing concepts and techniques. Chapters cover such topics as image processing in medical physics, binarization, video processing, and more
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