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Deep Learning Algorithms for Cardiac Image Classification and Landmark Detection

Holm, Anton LU (2018) In Master's Theses in Mathematical Sciences FMAM05 20172
Mathematics (Faculty of Engineering)
Abstract
With the increase in computational power, deep learning algorithms have become an active field of research over the last 7 years. These data-driven machine learning algorithms have produced good results in many applications, image analysis being one of them. Today, many image analysis tasks in the medical field are done manually, taking valuable time and effort from professionals. Automating some of these tasks could relieve work-load and speed up the healthcare process.

In this thesis, the potential use of deep learning algorithms for medical image analysis will be evaluated. Two problems will be investigated, cardiac image classification and landmark detection in cardiac images.

The algorithms used will be based on two existing... (More)
With the increase in computational power, deep learning algorithms have become an active field of research over the last 7 years. These data-driven machine learning algorithms have produced good results in many applications, image analysis being one of them. Today, many image analysis tasks in the medical field are done manually, taking valuable time and effort from professionals. Automating some of these tasks could relieve work-load and speed up the healthcare process.

In this thesis, the potential use of deep learning algorithms for medical image analysis will be evaluated. Two problems will be investigated, cardiac image classification and landmark detection in cardiac images.

The algorithms used will be based on two existing deep learning algorithms, the U-net and AlexNet. The deep learning algorithms will be implemented in the deep learning software Caffe, and all training and testing will be ran on an Amazon Web Services instance. The data used for training, testing and validation are provided by the Department of Clinical Physiology at Lund University Hospital. This data is augmented by scaling and rotation to provide a larger and more representative data set for training.

The trained algorithm for image classification achieved 98.8% accuracy on validation data, while the algorithm for landmark detection achieved approximately 95 % accuracy on validation data.

The image classification algorithms worked well, and it serves as a proof of concept with the potential of being able to solved more clinically difficult problems. With the high accuracy of the landmark detection algorithm largely being due to an imbalance in class distribution, this algorithm, while showing some promise, needs more work to be clinically useful. (Less)
Popular Abstract (Swedish)
Artificiell intelligens (AI) har under de senaste åren används framgångsrikt inom många olika områden. Ett område där dessa AI algoritmer ännu inte slagit igenom är sjukvården, där denna typ av automatisering utgör en potentiell lösning på de långa vårdköerna som finns idag. I denna rapport utvärderas den potential artificiell intelligens har för att lösa problem inom medicinsk bildanalys.
Please use this url to cite or link to this publication:
author
Holm, Anton LU
supervisor
organization
course
FMAM05 20172
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Deep Learning, Machine Learning, Medical Image analysis, Image analysis, Deep Neural Networks
publication/series
Master's Theses in Mathematical Sciences
report number
LUTFMA-3339-2018
ISSN
1404-6342
other publication id
2018:E5
language
English
id
8936396
date added to LUP
2018-06-07 16:24:06
date last changed
2018-06-07 16:24:06
@misc{8936396,
  abstract     = {With the increase in computational power, deep learning algorithms have become an active field of research over the last 7 years. These data-driven machine learning algorithms have produced good results in many applications, image analysis being one of them. Today, many image analysis tasks in the medical field are done manually, taking valuable time and effort from professionals. Automating some of these tasks could relieve work-load and speed up the healthcare process.

In this thesis, the potential use of deep learning algorithms for medical image analysis will be evaluated. Two problems will be investigated, cardiac image classification and landmark detection in cardiac images.

The algorithms used will be based on two existing deep learning algorithms, the U-net and AlexNet. The deep learning algorithms will be implemented in the deep learning software Caffe, and all training and testing will be ran on an Amazon Web Services instance. The data used for training, testing and validation are provided by the Department of Clinical Physiology at Lund University Hospital. This data is augmented by scaling and rotation to provide a larger and more representative data set for training. 

The trained algorithm for image classification achieved 98.8% accuracy on validation data, while the algorithm for landmark detection achieved approximately 95 % accuracy on validation data.

The image classification algorithms worked well, and it serves as a proof of concept with the potential of being able to solved more clinically difficult problems. With the high accuracy of the landmark detection algorithm largely being due to an imbalance in class distribution, this algorithm, while showing some promise, needs more work to be clinically useful.},
  author       = {Holm, Anton},
  issn         = {1404-6342},
  keyword      = {Deep Learning,Machine Learning,Medical Image analysis,Image analysis,Deep Neural Networks},
  language     = {eng},
  note         = {Student Paper},
  series       = {Master's Theses in Mathematical Sciences},
  title        = {Deep Learning Algorithms for Cardiac Image Classification and Landmark Detection},
  year         = {2018},
}