Evidence map›Paper›PMID 35203605›Full record

ArticleBiomedicines2022

Hyperspectral Imaging during Normothermic Machine Perfusion-A Functional Classification of Ex Vivo Kidneys Based on Convolutional Neural Networks.

Florian Sommer, Bingrui Sun, Julian Fischer, Miriam Goldammer, Christine Thiele, Hagen Malberg, Wenke Markgraf

Abstract read
In one paragraph

Article in Biomedicines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Label-free viability assessment ofBiomedical optics express · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Florian SommerInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.
Bingrui SunInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.
Julian FischerInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.ORCID 0000-0003-2050-8568
Miriam GoldammerInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.
Christine ThieleInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.
Hagen MalbergInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.
Wenke MarkgrafInstitute of Biomedical Engineering, Technische Universität Dresden, 01307 Dresden, Germany.ORCID 0000-0003-0090-8265

Funding

This research is funded by the European Social Fund and co-financed by tax funds based on the budget approved by the members of the Saxon State Parliament. 100380876_AP02
6 · The paper itself

Abstract

Facing an ongoing organ shortage in transplant medicine, strategies to increase the use of organs from marginal donors by objective organ assessment are being fostered. In this context, normothermic machine perfusion provides a platform for ex vivo organ evaluation during preservation. Consequently, analytical tools are emerging to determine organ quality. In this study, hyperspectral imaging (HSI) in the wavelength range of 550-995 nm was applied. Classification of 26 kidneys based on HSI was established using KidneyResNet, a convolutional neural network (CNN) based on the ResNet-18 architecture, to predict inulin clearance behavior. HSI preprocessing steps were implemented, including automated region of interest (ROI) selection, before executing the KidneyResNet algorithm. Training parameters and augmentation methods were investigated concerning their influence on the prediction. When classifying individual ROIs, the optimized KidneyResNet model achieved 84% and 62% accuracy in the validation and test set, respectively. With a majority decision on all ROIs of a kidney, the accuracy increased to 96% (validation set) and 100% (test set). These results demonstrate the feasibility of HSI in combination with KidneyResNet for non-invasive prediction of ex vivo kidney function. This knowledge of preoperative renal quality may support the organ acceptance decision.

Indexed as

biomedical optical imagingclassificationconvolutional neural networkfunction assessmenthyperspectral imagingkidneymachine learningnormothermic machine perfusionorgan preservationresidual neural network

Identifiers

PMID35203605
PMCPMC8962340

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.