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Filtering by: Creator Hitchcock, Robert W. Keyword spectral imaging

Spectral and image data for: Towards Cardiac Tissue Characterization Using Machine Learning and Light-Scattering Spectroscopy

Description:

Significance: Current medical imaging systems have many limitations for applications in cardiovascular diseases. New technologies may overcome these limitations. Particularly interesting are technologies for diagnosis of cardiac diseases, e.g. fibrosis, myocarditis, and transplant rejection. Aim: To introduce and assess a new optical system capable of assessing cardiac muscle tissue using light-scattering spectroscopy (LSS) in conjunction with machine learning. Approach: We applied an ovine model to investigate if the new LSS system is capable of estimating densities of cell nuclei in cardiac tissue. We measured the nuclear density using fluorescent labeling, confocal microscopy, and image processing. Spectra acquired from the same cardiac tissues were analyzed with spectral clustering and convolutional neural networks to assess feasibility and reliability of density quantification. Results: Spectral clustering revealed distinct groups of spectra correlated to ranges of nuclear density. Convolutional neural networks correctly classified 3 groups of spectra with low, medium, or high nuclear density with 95.00±11.77% (mean and standard deviation) accuracy. The analysis revealed sensitivity of the accuracy to wavelength range and subsampling of spectra. Conclusions: LSS and machine learning are capable of assessing nuclear density in cardiac tissues. The approach could be useful for diagnosis of cardiac diseases associated with an increase of nuclei.

Keyword:

machine learning, diagnosis, neural networks, medical imaging, nuclear density, spectroscopy, spectral imaging, and cardiac

Subject:

Cardiology

Creator:

Sachse, Frank B., Tiwari, Sarthak, Kaza, Aditya K., Cottle, Brian K., Knighton, Nathan, and Hitchcock, Robert W.

Owner:

Brian Cottle

Based Near Label Tesim:

Salt Lake City, UT, Utah, United States

Language:

English

Date Uploaded:

05/11/2021

Date Modified:

12/08/2023

Date Created:

2019-01-01 to 2019-02-08 and 2020-07-21 to 2020-08-07

License:

CC BY NC - Allows others to use and share your data non-commercially and with attribution.

Resource Type:

Dataset

Identifier:

https://doi.org/10.7278/S50D-FV1Q-BYNS

Spectral and image data for: Towards Cardiac Tissue Characterization Using Machine Learning and Light-Scattering Spectroscopy

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