Evidence map›Paper›PMID 40660895›Full record

ArticleMedical physics2025

Explainable AI for raising confidence in deep learning-based tumor tracking models.

Dragos Grama, Max Dahele, Ben Slotman, Wilko F A R Verbakel

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Article in Medical physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

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3citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Dragos GramaDepartment of Radiation Oncology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Max DaheleDepartment of Radiation Oncology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Ben SlotmanDepartment of Radiation Oncology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
Wilko F A R VerbakelDepartment of Radiation Oncology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecently, tumor position monitoring using fluoroscopic images acquired during volumetric modulated arc therapy (VMAT) delivery has become available in a research setting. Accurate tracking during stereotactic body radiotherapy (SBRT), using VMAT, for lung tumors can help to ensure that the tumor is only irradiated when it is inside the planning target volume. PURPOSE: Traditionally, template matching is used to determine the tumor position, but with low tracking rates. A deep learning-based approach has the potential to improve this, but as deep learning is considered a "black box," it would be desirable to know when to trust the predictions made by the model.

methodsWe investigate the reliability and effectiveness of four explainable AI (XAI) methods (Guided Backpropagation (GBP), Layer-wise Relevance Propagation (LRP), DeepLIFT and PatternAttribtuion) to highlight the most relevant features for a deep learning-based 2D markerless lung tumor tracking model. The experiments are conducted on two phantoms and six clinical patients with small lung tumors (0.23-2.93

resultsOur findings suggest that out of the four selected XAI methods, only GBP and DeepLIFT demonstrate a reliable and consistent behavior across all patients and phantoms; LRP shows good performance in the phantom setting but has lower qualitative results on the clinical data.

conclusionsBased on our results, we argue that GBP and DeepLIFT can be used out-of-the-box to explain deep learning-based tracking models for SBRT using VMAT. Further investigation is needed to develop a robust measure of the model's reliability in clinical practice during treatment delivery.

Indexed as

Deep LearningLung NeoplasmsHumansImage Processing, Computer-AssistedPhantoms, ImagingRadiosurgeryRadiotherapy, Intensity-Modulatedexplainable AIradiotherapytumor tracking

Identifiers

PMID40660895
PMCPMC12260770

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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.