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Multiple instance learning for classification of dementia in brain MRI
Tong T, Wolz R, Gao Q, Guerrero R, Hajnal JV, Rueckert D, Alzheimer’s Disease Neuroimaging Initiative.. Medical image analysis, 2014-05-05
Topic: Risk, prevention and care in population studies
Machine learning techniques have been widely used to detect morphological abnormalities from structural brain magnetic resonance imaging data and to support the diagnosis of neurological diseases such as dementia. In this paper, we propose to use a multiple instance learning (MIL) method in an application for the detection of Alzheimer's disease (AD) and its prodromal stage mild cognitive impairment (MCI). In our work, local intensity patches are extracted as features. However, not all the patches extracted from patients with dementia are equally affected by the disease and some of them may not be characteristic of morphology associated with the disease. Therefore, there is some ambiguity in assigning disease labels to these patches. The problem of the ambiguous training labels can be addressed by weakly supervised learning techniques such as MIL. A graph is built for each image to exploit the relationships among the patches and then to solve the MIL problem. The constructed graphs contain information about the appearances of patches and the relationships among them, which can reflect the inherent structures of images and aids the classification. Using the baseline MR images of 834 subjects from the ADNI study, the proposed method can achieve a classification accuracy of 89% between AD patients and healthy controls, and 70% between patients defined as stable MCI and progressive MCI in a leave-one-out cross validation. Compared with two state-of-the-art methods using the same dataset, the proposed method can achieve similar or improved results, providing an alternative framework for the detection and prediction of neurodegenerative diseases.
Key findings
- However, not all the patches extracted from patients with dementia are equally affected by the disease and some of them may not be characteristic of morphology associated with the disease.
- Compared with two state-of-the-art methods using the same dataset, the proposed method can achieve similar or improved results, providing an alternative framework for the detection and prediction of neurodegenerative diseases.
Why it matters
Using baseline MRI scans of 834 people from the ADNI research study, this machine-learning method told Alzheimer's patients apart from healthy controls with 89% accuracy. It was less accurate (70%) at telling which people with mild cognitive impairment would stay stable and which would progress. Both figures come from leave-one-out cross-validation within that one dataset rather than a new group of patients, and the method was reported as similar to or better than two earlier methods. It is a diagnostic-research study and does not test any treatment, cure or prevention.
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Study details
- Participants834
- Evidence strengthLow
How this study scored 51/100
Published in a peer-reviewed journal. Scored zero for study design, effect reported and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Medical image analysis) |
| Journal's citation record | 2 / 4 | Medical Image Analysis: journal h-index 221 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2014 — within 20 year(s) of the newest study here |
| Sample size | 2 / 4 | 834 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 5 / 7 | Cited 216 times (OpenAlex, 2026-10-10) |
| Citations per year | 3 / 5 | 15.4 citations a year over 14 year(s) since 2014 |
| Impact for its field and year | 4 / 6 | Cited 9.5× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 2 / 6 | Cited by 7 other studies in this library |
| Still being cited | 2 / 4 | Cited 44 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 4 / 4 | Last-listed author Daniel Rueckert: h-index 132 (OpenAlex, whole career) |
| Institution's track record | 2 / 3 | Imperial College London: institution h-index 1,744 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 3 institution(s) in 1 country |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 24858570) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Total | 51 / 100 | — |
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Read the original
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Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record names 7 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.
APA 7th
Tong, T., Wolz, R., Gao, Q., Guerrero, R., Hajnal, J. V., Rueckert, D., et al. (2014). Multiple instance learning for classification of dementia in brain MRI. Medical image analysis. https://doi.org/10.1016/j.media.2014.04.006
Vancouver
Tong T, Wolz R, Gao Q, Guerrero R, Hajnal JV, Rueckert D, et al. Multiple instance learning for classification of dementia in brain MRI. Medical image analysis. 2014. doi:10.1016/j.media.2014.04.006. PMID: 24858570.
BibTeX
@article{tong2014-24858570,
author = {Tong, T. and Wolz, R. and Gao, Q. and Guerrero, R. and Hajnal, J. V. and Rueckert, D. and {Alzheimer’s Disease Neuroimaging Initiative}},
title = {{Multiple instance learning for classification of dementia in brain MRI}},
journal = {Medical image analysis},
year = {2014},
doi = {10.1016/j.media.2014.04.006},
pmid = {24858570},
url = {https://doi.org/10.1016/j.media.2014.04.006}
}
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