Dr. Jeffrey B. Hodgin Profile

Dr. Jeffrey B. Hodgin

at Univ of Michigan

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Author

Publications (2)

SPIE Journal Paper | 10 October 2024 Open Access

Characterization of arteriosclerosis based on computer-aided measurements of intra-arterial thickness

Jin Zhou, Xiang Li, Dawit Demeke, Timothy A. Dinh, Yingbao Yang, Andrew Janowczyk, Jarcy Zee, Lawrence Holzman, Laura Mariani, Krishnendu Chakrabarty, Laura Barisoni, Jeffrey Hodgin, Kyle J. Lafata

JMI, Vol. 11, Issue 05, 057501, (October 2024) https://doi.org/10.1117/12.10.1117/1.JMI.11.5.057501

KEYWORDS: Arteries, Image segmentation, Tissues, Pathology, Kidney, Feature extraction, Deformation, Biopsy, Tunable filters, Distortion

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PurposeOur purpose is to develop a computer vision approach to quantify intra-arterial thickness on digital pathology images of kidney biopsies as a computational biomarker of arteriosclerosis.ApproachThe severity of the arteriosclerosis was scored (0 to 3) in 753 arteries from 33 trichrome-stained whole slide images (WSIs) of kidney biopsies, and the outer contours of the media, intima, and lumen were manually delineated by a renal pathologist. We then developed a multi-class deep learning (DL) framework for segmenting the different intra-arterial compartments (training dataset: 648 arteries from 24 WSIs; testing dataset: 105 arteries from 9 WSIs). Subsequently, we employed radial sampling and made measurements of media and intima thickness as a function of spatially encoded polar coordinates throughout the artery. Pathomic features were extracted from the measurements to collectively describe the arterial wall characteristics. The technique was first validated through numerical analysis of simulated arteries, with systematic deformations applied to study their effect on arterial thickness measurements. We then compared these computationally derived measurements with the pathologists’ grading of arteriosclerosis.ResultsNumerical validation shows that our measurement technique adeptly captured the decreasing smoothness in the intima and media thickness as the deformation increases in the simulated arteries. Intra-arterial DL segmentations of media, intima, and lumen achieved Dice scores of 0.84, 0.78, and 0.86, respectively. Several significant associations were identified between arteriosclerosis grade and pathomic features using our technique (e.g., intima-media ratio average [τ=0.52, p<0.0001]) through Kendall’s tau analysis.ConclusionsWe developed a computer vision approach to computationally characterize intra-arterial morphology on digital pathology images and demonstrate its feasibility as a potential computational biomarker of arteriosclerosis.

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Proceedings Article | 3 April 2024 Presentation + Paper

ComPRePS: an automated cloud-based image analysis tool to democratize AI in digital pathology

Sayat Mimar, Anindya Paul, Nicholas Lucarelli, Samuel Border, Ahmed Naglah, Laura Barisoni, Jeffrey Hodgin, Avi Rosenberg, William Clapp, Pinaki Sarder

Proceedings Volume 12933, 129330Z (2024) https://doi.org/10.1117/12.3008469

KEYWORDS: Artificial intelligence, Image segmentation, Pathology, Education and training, Image analysis, Data modeling, Visualization, Feature extraction, Medicine, Process modeling

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