Brain MRI Tumour Localization and Segmentation Through Deep Learning
Bibliographic record
Abstract
The segmentation of magnetic resonance imaging (MRI) is an important task in medical imaging, particularly for brain MRIs, where accurate segmentation of anatomical structures, often challenged by uneven shapes and fuzzy boundaries of tumours, is difficult to achieve. Thus, automating reliable segmentation of the region of interest (ROI) is essential in medical imaging. This work introduces an automated approach for brain tumour segmentation, leveraging a Deep Convolutional Neural Network (CNN) with a focus on effectively segmenting brain tumours within T1-weighted contrast-enhanced MRI (CE-MRI) images. The proposed method is first performed on the classified images to localize the tumour regions of interest(ROIs). In the next stage, the algorithm contours the concentrated tumour boundary for the segmentation process, which contains the network and attention module, both spatial and channel. To evaluate the overall system's performance, precision, recall, Jaccard index, and dice similarity coefficient (DSC) were calculated, where we achieved 0.8757, 0.8804, 0.8624, and 0.8995, respectively. Our approach demonstrates promising results compared to previous methods using the same database.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".