Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semi-Automatic Algorithm for Breast MRI Lesion Segmentation Using
  Marker-Controlled Watershed Transformation   Magnetic resonance imaging (MRI) is an effective imaging modality for
identifying and localizing breast lesions in women. Accurate and precise lesion
segmentation using a computer-aided-diagnosis (CAD) system, is a crucial step
in evaluating tumor volume and in the quantification of tumor characteristics.
However, this is a challenging task, since breast lesions have sophisticated
shape, topological structure, and high variance in their intensity distribution
across patients. In this paper, we propose a novel marker-controlled watershed
transformation-based approach, which uses the brightest pixels in a region of
interest (determined by experts) as markers to overcome this challenge, and
accurately segment lesions in breast MRI. The proposed approach was evaluated
on 106 lesions, which includes 64 malignant and 42 benign cases. Segmentation
results were quantified by comparison with ground truth labels, using the Dice
similarity coefficient (DSC) and Jaccard index (JI) metrics. The proposed
method achieved an average Dice coefficient of 0.7808$\pm$0.1729 and Jaccard
index of 0.6704$\pm$0.2167. These results illustrate that the proposed method
shows promise for future work related to the segmentation and classification of
benign and malignant breast lesions.

21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc