Automatic slice identification in 3D medical images with a ConvNet regressor

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Abstract

Identification of anatomical regions of interest is a prerequisite in many medical image analysis tasks. We propose a method that automatically identifies a slice of interest (SOI) in 3D images with a convolutional neural network (ConvNet) regressor. In 150 chest CT scans two reference slices were manually identified: one containing the aortic root and another superior to the aortic arch. In two independent experiments, the ConvNet regressor was trained with 100 CTs to determine the distance between each slice and the SOI in a CT. To identify the SOI, a first order polynomial was fitted through the obtained distances. In 50 test scans, the mean distances between the reference and the automatically identified slices were 5.7mm (4.0 slices) for the aortic root and 5.6mm (3.7 slices) for the aortic arch. The method shows similar results for both tasks and could be used for automatic slice identification.

Original languageEnglish
Title of host publicationDeep Learning and Data Labeling for Medical Applications
Subtitle of host publicationFirst International Workshop, LABELS 2016, and Second International Workshop, DLMIA 2016, Held in Conjunction with MICCAI 2016, Athens, Greece, October 21, 2016, Proceedings
EditorsGustavo Carneiro, Diana Mateus, Loïc Peter, Andrew Bradley
PublisherSpringer-Verlag
Pages161-169
Number of pages9
ISBN (Electronic)978-3-319-46976-8
ISBN (Print)9783319469751
DOIs
Publication statusPublished - 2016
Event1st International Workshop on Large-Scale Annotation of Biomedical Data and Expert Label Synthesis, LABELS 2016 and 2nd International Workshop on Deep Learning in Medical Image Analysis, DLMIA 2016 held in conjunction with 19th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2016 - Athens, Greece
Duration: 21 Oct 201621 Oct 2016

Publication series

NameLecture Notes in Computer Science
Volume10008
ISSN (Print)03029743
ISSN (Electronic)16113349

Conference

Conference1st International Workshop on Large-Scale Annotation of Biomedical Data and Expert Label Synthesis, LABELS 2016 and 2nd International Workshop on Deep Learning in Medical Image Analysis, DLMIA 2016 held in conjunction with 19th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2016
Country/TerritoryGreece
CityAthens
Period21/10/1621/10/16

Keywords

  • Convolutional neural network
  • Deep learning
  • Detection
  • Localization
  • Regression
  • Slice identification

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