Spatial correlation of 2D hard-tissue histology with 3D microCT scans through 3D printed phantoms. 2023

Philipp Nolte, and Marcel Brettmacher, and Chris Johann Gröger, and Tim Gellhaus, and Angelika Svetlove, and Arndt F Schilling, and Frauke Alves, and Christoph Rußmann, and Christian Dullin
Faculty of Engineering and Health, University of Applied Sciences and Arts, Göttingen, Germany.

Hard-tissue histology-the analysis of thin two-dimensional (2D) sections-is hampered by the opaque nature of most biological specimens, especially bone. Therefore, the cutting process cannot be assigned to regions of interest. In addition, the applied cutting-grinding method is characterized by significant material loss. As a result, relevant structures might be missed or destroyed, and 3D features can hardly be evaluated. Here, we present a novel workflow, based on conventual microCT scans of the specimen prior to the cutting process, to be used for the analysis of 3D structural features and for directing the sectioning process to the regions of interest. 3D printed fiducial markers, embedded together with the specimen in resin, are utilized to retrospectively register the obtained 2D histological images into the 3D anatomical context. This not only allows to identify the cutting position, but also enables the co-registration of the cell and extracellular matrix morphological analysis to local 3D information obtained from the microCT data. We have successfully applied our new approach to assess hard-tissue specimens of different species. After matching the predicted microCT cut plane with the histology image, we validated a high accuracy of the registration process by computing quality measures namely Jaccard and Dice similarity coefficients achieving an average score of 0.90 ± 0.04 and 0.95 ± 0.02, respectively. Thus, we believe that the novel, easy to implement correlative imaging approach holds great potential for improving the reliability and diagnostic power of classical hard-tissue histology.

UI MeSH Term Description Entries
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D055114 X-Ray Microtomography X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range. MicroCT,Microcomputed Tomography,X-Ray Micro-CAT Scans,X-Ray Micro-CT,X-Ray Micro-CT Scans,X-Ray Micro-Computed Tomography,X-Ray Microcomputed Tomography,X-ray MicroCT,Xray Micro-CT,Xray MicroCT,Micro-CAT Scan, X-Ray,Micro-CAT Scans, X-Ray,Micro-CT Scan, X-Ray,Micro-CT Scans, X-Ray,Micro-CT, X-Ray,Micro-CT, Xray,Micro-CTs, X-Ray,Micro-CTs, Xray,Micro-Computed Tomography, X-Ray,MicroCT, X-ray,MicroCT, Xray,MicroCTs,MicroCTs, X-ray,MicroCTs, Xray,Microcomputed Tomography, X-Ray,Microtomography, X-Ray,Scan, X-Ray Micro-CAT,Scan, X-Ray Micro-CT,Scans, X-Ray Micro-CAT,Scans, X-Ray Micro-CT,Tomography, Microcomputed,Tomography, X-Ray Micro-Computed,Tomography, X-Ray Microcomputed,X Ray Micro CAT Scans,X Ray Micro CT,X Ray Micro CT Scans,X Ray Micro Computed Tomography,X Ray Microcomputed Tomography,X Ray Microtomography,X ray MicroCT,X-Ray Micro-CAT Scan,X-Ray Micro-CT Scan,X-Ray Micro-CTs,X-ray MicroCTs,Xray Micro CT,Xray Micro-CTs,Xray MicroCTs
D021621 Imaging, Three-Dimensional The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object. Computer-Assisted Three-Dimensional Imaging,Imaging, Three-Dimensional, Computer Assisted,3-D Image,3-D Imaging,Computer-Generated 3D Imaging,Three-Dimensional Image,Three-Dimensional Imaging, Computer Generated,3 D Image,3 D Imaging,3-D Images,3-D Imagings,3D Imaging, Computer-Generated,3D Imagings, Computer-Generated,Computer Assisted Three Dimensional Imaging,Computer Generated 3D Imaging,Computer-Assisted Three-Dimensional Imagings,Computer-Generated 3D Imagings,Image, 3-D,Image, Three-Dimensional,Images, 3-D,Images, Three-Dimensional,Imaging, 3-D,Imaging, Computer-Assisted Three-Dimensional,Imaging, Computer-Generated 3D,Imaging, Three Dimensional,Imagings, 3-D,Imagings, Computer-Assisted Three-Dimensional,Imagings, Computer-Generated 3D,Imagings, Three-Dimensional,Three Dimensional Image,Three Dimensional Imaging, Computer Generated,Three-Dimensional Images,Three-Dimensional Imaging,Three-Dimensional Imaging, Computer-Assisted,Three-Dimensional Imagings,Three-Dimensional Imagings, Computer-Assisted
D066330 Printing, Three-Dimensional Process for making, building or constructing a physical object from a three-dimensional digital model by laying down many successive thin layers of building material. 3-D Printing,3-Dimensional Printing,3D Printing,Three-Dimensional Printing,3 D Printing,3 Dimensional Printing,3-D Printings,3-Dimensional Printings,3D Printings,Printing, 3-D,Printing, 3-Dimensional,Printing, 3D,Printing, Three Dimensional,Printings, 3-D,Printings, 3-Dimensional,Printings, 3D,Printings, Three-Dimensional,Three Dimensional Printing,Three-Dimensional Printings

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