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2016 ; 64
(9
): 519-29
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English Wikipedia
Comparison of Picrosirius Red Staining With Second Harmonic Generation Imaging
for the Quantification of Clinically Relevant Collagen Fiber Features in
Histopathology Samples
#MMPMID27449741
Drifka CR
; Loeffler AG
; Mathewson K
; Mehta G
; Keikhosravi A
; Liu Y
; Lemancik S
; Ricke WA
; Weber SM
; Kao WJ
; Eliceiri KW
J Histochem Cytochem
2016[Sep]; 64
(9
): 519-29
PMID27449741
show ga
Stromal collagen alignment has been shown to have clinical significance in a
variety of cancers and in other diseases accompanied by fibrosis. While much of
the biological and clinical importance of collagen changes has been demonstrated
using second harmonic generation (SHG) imaging in experimental settings,
implementation into routine clinical pathology practice is currently prohibitive.
To translate the assessment of collagen organization into routine pathology
workflow, a surrogate visualization method needs to be examined. The objective of
the present study was to quantitatively compare collagen metrics generated from
SHG microscopy and commonly available picrosirius red stain with standard
polarization microscopy (PSR-POL). Each technique was quantitatively compared
with established image segmentation and fiber tracking algorithms using human
pancreatic cancer as a model, which is characterized by a pronounced stroma with
reorganized collagen fibers. Importantly, PSR-POL produced similar quantitative
trends for most collagen metrics in benign and cancerous tissues as measured by
SHG. We found it notable that PSR-POL detects higher fiber counts, alignment,
length, straightness, and width compared with SHG imaging but still correlates
well with SHG results. PSR-POL may provide sufficient and additional information
in a conventional clinical pathology laboratory for certain types of collagen
quantification.