Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Imaging of non tumorous and tumorous human brain tissue with full-field
  optical coherence tomography   A prospective study was performed on neurosurgical samples from 18 patients
to evaluate the use of Full-Field Optical Coherence Tomography (FF-OCT) in
brain tumor diagnosis. FF-OCT captures en face slices of tissue samples at
1\mum resolution in 3D with a typical 200\mum imaging depth. A 1cm2 specimen is
scanned at a single depth and processed in about 5 minutes. This rapid imaging
process is non-invasive and 30 requires neither contrast agent injection nor
tissue preparation, which makes it particularly well suited to medical imaging
applications. Temporal chronic epileptic parenchyma and brain tumors such as
meningiomas, low- grade and high-grade gliomas, and choroid plexus papilloma
were imaged. A subpopulation of neurons, myelin fibers and CNS vasculature were
clearly identified. Cortex could be discriminated from white matter, but
individual glial cells as astrocytes (normal or reactive) or oligodendrocytes
were not observable. This study reports for the first time on the feasibility
of using FF-OCT in a real-time manner as a label-free non-invasive imaging
technique in an intra-operative neurosurgical clinical setting to assess
tumorous glial and epileptic margins.

21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg