Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep Learning-based Four-region Lung Segmentation in Chest Radiography
  for COVID-19 Diagnosis   Purpose. Imaging plays an important role in assessing severity of COVID 19
pneumonia. However, semantic interpretation of chest radiography (CXR) findings
does not include quantitative description of radiographic opacities. Most
current AI assisted CXR image analysis framework do not quantify for regional
variations of disease. To address these, we proposed a four region lung
segmentation method to assist accurate quantification of COVID 19 pneumonia.
Methods. A segmentation model to separate left and right lung is firstly
applied, and then a carina and left hilum detection network is used, which are
the clinical landmarks to separate the upper and lower lungs. To improve the
segmentation performance of COVID 19 images, ensemble strategy incorporating
five models is exploited. Using each region, we evaluated the clinical
relevance of the proposed method with the Radiographic Assessment of the
Quality of Lung Edema (RALE). Results. The proposed ensemble strategy showed
dice score of 0.900, which is significantly higher than conventional methods
(0.854 0.889). Mean intensities of segmented four regions indicate positive
correlation to the extent and density scores of pulmonary opacities under the
RALE framework. Conclusion. A deep learning based model in CXR can accurately
segment and quantify regional distribution of pulmonary opacities in patients
with COVID 19 pneumonia.

26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol