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A web-based tool for real-time adequacy assessment of kidney biopsies

Ahangaran, M.; Sun, E.; Le, K.; Sun, J.; Wang, W.; Tan, T. H.; Burdine, L.; Dvanajscak, Z.; Cassol, C.; Sharma, S.; Kolachalama, V. B.

2024-02-03 nephrology
10.1101/2024.02.01.24302147 medRxiv
Show abstract

The escalating incidence of kidney biopsies providing insufficient tissue for diagnosis poses a dual challenge, straining the healthcare system and jeopardizing patients who may require re-biopsy or face the prospect of an inaccurate diagnosis due to an unsampled disease. Here, we introduce a web-based tool that can provide real-time, quantitative assessment of kidney biopsy adequacy directly from photographs taken with a smartphone camera. The software tool was developed using a deep learning-driven automated segmentation technique, trained on a dataset comprising nephropathologist-confirmed annotations of the kidney cortex on digital biopsy images. Our framework demonstrated favorable performance in segmenting the cortex via 5-fold cross-validation (Dice coefficient: 0.788{+/-}0.130) (n=100). Offering a bedside tool for kidney biopsy adequacy assessment has the potential to provide real-time guidance to the physicians performing medical kidney biopsies, reducing the necessity for re-biopsies. Our tool can be accessed through our web-based platform: http://www.biopsyadequacy.org.

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