Paper
20 March 2014 Multiple-instance learning for computer-aided detection of tuberculosis
Author Affiliations +
Abstract
Detection of tuberculosis (TB) on chest radiographs (CXRs) is a hard problem. Therefore, to help radiologists or even take their place when they are not available, computer-aided detection (CAD) systems are being developed. In order to reach a performance comparable to that of human experts, the pattern recognition algorithms of these systems are typically trained on large CXR databases that have been manually annotated to indicate the abnormal lung regions. However, manually outlining those regions constitutes a time-consuming process that, besides, is prone to inconsistencies and errors introduced by interobserver variability and the absence of an external reference standard. In this paper, we investigate an alternative pattern classi cation method, namely multiple-instance learning (MIL), that does not require such detailed information for a CAD system to be trained. We have applied this alternative approach to a CAD system aimed at detecting textural lesions associated with TB. Only the case (or image) condition (normal or abnormal) was provided in the training stage. We compared the resulting performance with those achieved by several variations of a conventional system trained with detailed annotations. A database of 917 CXRs was constructed for experimentation. It was divided into two roughly equal parts that were used as training and test sets. The area under the receiver operating characteristic curve was utilized as a performance measure. Our experiments show that, by applying the investigated MIL approach, comparable results as with the aforementioned conventional systems are obtained in most cases, without requiring condition information at the lesion level.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Melendez, C. I. Sánchez, R. H. H. M. Philipsen, P. Maduskar, and B. van Ginneken "Multiple-instance learning for computer-aided detection of tuberculosis", Proc. SPIE 9035, Medical Imaging 2014: Computer-Aided Diagnosis, 90351J (20 March 2014); https://doi.org/10.1117/12.2043018
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Cited by 9 scholarly publications.
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KEYWORDS
CAD systems

Computer aided design

Lung

Chest imaging

Databases

Image segmentation

Computer aided diagnosis and therapy

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