Objectives As computing technology and image analysis techniques have advanced, the practice of histology has grown from a purely qualitative method to one that is highly quantified. Current image analysis software is imprecise and prone to wide variation due to common artifacts and histological limitations. In order to minimize the impact of these artifacts, a more robust method for quantitative image analysis is required. Methods and Results Here we present a novel image analysis software, based on the hue saturation value color space, to be applied to a wide variety of histological stains and tissue types. By using hue, saturation, and value variables instead of the more common red, green, and blue variables, our software offers some distinct advantages over other commercially available programs. We tested the program by analyzing several common histological stains, performed on tissue sections that ranged from 4 μm to 10 μm in thickness, using both a red green blue color space and a hue saturation value color space. Conclusion We demonstrated that our new software is a simple method for quantitative analysis of histological sections, which is highly robust to variations in section thickness, sectioning artifacts, and stain quality, eliminating sample-to-sample variation.
References
[1]
Csordas A, Pankotai E, Snipes JA, Cselenyak A, Sarszegi Z, et al. (2007) Human heart mitochondria do not produce physiologically relevant quantities of nitric oxide. Life Sci 80: 633–637. doi: 10.1016/j.lfs.2006.10.009
[2]
New SE, Goettsch C, Aikawa M, Marchini JF, Shibasaki M, et al. (2013) Macrophage-derived matrix vesicles: An alternative novel mechanism for microcalcification in atherosclerotic plaques. Circ Res 113: 72–77. doi: 10.1161/circresaha.113.301036
[3]
Rabkin E, Aikawa M, Stone JR, Fukumoto Y, Libby P, et al. (2001) Activated interstitial myofibroblasts express catabolic enzymes and mediate matrix remodeling in myxomatous heart valves. Circulation 104: 2525–2532. doi: 10.1161/hc4601.099489
[4]
Taylor CR, Levenson RM (2006) Quantification of immunohistochemistry–issues concerning methods, utility and semiquantitative assessment ii. Histopathology 49: 411–424. doi: 10.1111/j.1365-2559.2006.02513.x
[5]
Anthony A, Colurso GJ, Bocan TM, Doebler JA (1984) Interferometric analysis of intrasection and intersection thickness variability associated with cryostat microtomy. Histochem J 16: 61–70. doi: 10.1007/bf01003436
[6]
De Witt Hamer PC, Bleeker FE, Zwinderman AH, Van Noorden CJ (2006) Can you trust your cryostat? Reproducibility of cryostat section thickness. Microsc Res Tech 69: 835–838. doi: 10.1002/jemt.20354
[7]
Poynton C (2003) Digital video and hdtv: Algorithms and interfaces. San Francisco: Morgan Kaufmann Series in Computer Graphics. 692 p.