Automated Lesion Segmentation in Whole-Body PET/CT in a multitracer setting
- URL: http://arxiv.org/abs/2409.09766v1
- Date: Sun, 15 Sep 2024 15:32:29 GMT
- Title: Automated Lesion Segmentation in Whole-Body PET/CT in a multitracer setting
- Abstract summary: The study focuses on evaluating the performance of automated segmentation workflow for multitracer PET images.
The findings are expected to provide critical insights for enhancing diagnostic and patient-specific treatment plans.
- Score: 2.4549652987344546
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: This study explores a workflow for automated segmentation of lesions in FDG and PSMA PET/CT images. Due to the substantial differences in image characteristics between FDG and PSMA, specialized preprocessing steps are required. Utilizing YOLOv8 for data classification, the FDG and PSMA images are preprocessed separately before feeding them into the segmentation models, aiming to improve lesion segmentation accuracy. The study focuses on evaluating the performance of automated segmentation workflow for multitracer PET images. The findings are expected to provide critical insights for enhancing diagnostic workflows and patient-specific treatment plans. Our code will be open-sourced and available at https://github.com/jiayiliu-pku/AP2024.
Related papers
- Pretrained, Curriculum-Tuned, and Ensembled: A Tracer-Aware Interactive Segmentation Pipeline for AutoPET V [14.33657441650138]
We present TRIAGE, Tracer-aware Refinement via Interactive Anatomy-Guided sEgmentation.<n>We present TRIAGE, Tracer-aware Refinement via Interactive Anatomy-Guided sEgmentation.
arXiv Detail & Related papers (2026-08-31T14:13:09Z) - The Efficacy of Semantics-Preserving Transformations in Self-Supervised Learning for Medical Ultrasound [60.80780313225093]
This study systematically investigated the impact of data augmentation and preprocessing strategies in self-supervised learning for lung ultrasound.
Three data augmentation pipelines were assessed: a baseline pipeline commonly used across imaging domains, a novel semantic-preserving pipeline designed for ultrasound, and a distilled set of the most effective transformations from both pipelines.
arXiv Detail & Related papers (2025-04-10T16:26:47Z) - PathSegDiff: Pathology Segmentation using Diffusion model representations [63.20694440934692]
We propose PathSegDiff, a novel approach for histopathology image segmentation that leverages Latent Diffusion Models (LDMs) as pre-trained featured extractors.
Our method utilizes a pathology-specific LDM, guided by a self-supervised encoder, to extract rich semantic information from H&E stained histopathology images.
Our experiments demonstrate significant improvements over traditional methods on the BCSS and GlaS datasets.
arXiv Detail & Related papers (2025-04-09T14:58:21Z) - SegAnyPET: Universal Promptable Segmentation from Positron Emission Tomography Images [21.883098685700666]
We develop SegAnyPET, a modality-specific 3D foundation model for universal promptable segmentation from PET images.<n> Experimental results demonstrate that SegAnyPET can segment seen and unseen target organs using only one or a few prompt points.
arXiv Detail & Related papers (2025-02-20T08:17:13Z) - Semantic Segmentation Based Quality Control of Histopathology Whole Slide Images [2.953447779233234]
We developed a software pipeline for quality control (QC) of histopathology whole slide images (WSIs)
It segments various regions, such as blurs of different levels, tissue regions, tissue folds, and pen marks.
It was evaluated in all TCGAs, which is the largest publicly available WSI dataset containing more than 11,000 histopathology images from 28 organs.
arXiv Detail & Related papers (2024-10-04T10:03:04Z) - Autopet III challenge: Incorporating anatomical knowledge into nnUNet for lesion segmentation in PET/CT [4.376648893167674]
The autoPET III Challenge focuses on advancing automated segmentation of tumor lesions in PET/CT images.
We developed a classifier that identifies the tracer of the given PET/CT based on the Maximum Intensity Projection of the PET scan.
Our final submission achieves cross-validation Dice scores of 76.90% and 61.33% for the publicly available FDG and PSMA datasets.
arXiv Detail & Related papers (2024-09-18T17:16:57Z) - From FDG to PSMA: A Hitchhiker's Guide to Multitracer, Multicenter Lesion Segmentation in PET/CT Imaging [0.9384264274298444]
We present our solution for the autoPET III challenge, targeting multitracer, multicenter generalization using the nnU-Net framework with the ResEncL architecture.
Key techniques include misalignment data augmentation and multi-modal pretraining across CT, MR, and PET datasets.
Compared to the default nnU-Net, which achieved a Dice score of 57.61, our model significantly improved performance with a Dice score of 68.40, alongside a reduction in false positive (FPvol: 7.82) and false negative (FNvol: 10.35) volumes.
arXiv Detail & Related papers (2024-09-14T16:39:17Z) - PMT: Progressive Mean Teacher via Exploring Temporal Consistency for Semi-Supervised Medical Image Segmentation [51.509573838103854]
We propose a semi-supervised learning framework, termed Progressive Mean Teachers (PMT), for medical image segmentation.
Our PMT generates high-fidelity pseudo labels by learning robust and diverse features in the training process.
Experimental results on two datasets with different modalities, i.e., CT and MRI, demonstrate that our method outperforms the state-of-the-art medical image segmentation approaches.
arXiv Detail & Related papers (2024-09-08T15:02:25Z) - Explanations of Classifiers Enhance Medical Image Segmentation via
End-to-end Pre-training [37.11542605885003]
Medical image segmentation aims to identify and locate abnormal structures in medical images, such as chest radiographs, using deep neural networks.
Our work collects explanations from well-trained classifiers to generate pseudo labels of segmentation tasks.
We then use Integrated Gradients (IG) method to distill and boost the explanations obtained from the classifiers, generating massive diagnosis-oriented localization labels (DoLL)
These DoLL-annotated images are used for pre-training the model before fine-tuning it for downstream segmentation tasks, including COVID-19 infectious areas, lungs, heart, and clavicles.
arXiv Detail & Related papers (2024-01-16T16:18:42Z) - ArSDM: Colonoscopy Images Synthesis with Adaptive Refinement Semantic
Diffusion Models [69.9178140563928]
Colonoscopy analysis is essential for assisting clinical diagnosis and treatment.
The scarcity of annotated data limits the effectiveness and generalization of existing methods.
We propose an Adaptive Refinement Semantic Diffusion Model (ArSDM) to generate colonoscopy images that benefit the downstream tasks.
arXiv Detail & Related papers (2023-09-03T07:55:46Z) - Self-Supervised Correction Learning for Semi-Supervised Biomedical Image
Segmentation [84.58210297703714]
We propose a self-supervised correction learning paradigm for semi-supervised biomedical image segmentation.
We design a dual-task network, including a shared encoder and two independent decoders for segmentation and lesion region inpainting.
Experiments on three medical image segmentation datasets for different tasks demonstrate the outstanding performance of our method.
arXiv Detail & Related papers (2023-01-12T08:19:46Z) - Whole-Body Lesion Segmentation in 18F-FDG PET/CT [11.662584140924725]
The proposed model is designed on the basis of the joint 2D and 3D nnUNET architecture to predict lesions across the whole body.
We evaluate the proposed method in the context of AutoPet Challenge, which measures the lesion segmentation performance in the metrics of dice score, false-positive volume and false-negative volume.
arXiv Detail & Related papers (2022-09-16T10:49:53Z) - Prior Knowledge-Guided Attention in Self-Supervised Vision Transformers [79.60022233109397]
We present spatial prior attention (SPAN), a framework that takes advantage of consistent spatial and semantic structure in unlabeled image datasets.
SPAN operates by regularizing attention masks from separate transformer heads to follow various priors over semantic regions.
We find that the resulting attention masks are more interpretable than those derived from domain-agnostic pretraining.
arXiv Detail & Related papers (2022-09-07T02:30:36Z) - PCA: Semi-supervised Segmentation with Patch Confidence Adversarial
Training [52.895952593202054]
We propose a new semi-supervised adversarial method called Patch Confidence Adrial Training (PCA) for medical image segmentation.
PCA learns the pixel structure and context information in each patch to get enough gradient feedback, which aids the discriminator in convergent to an optimal state.
Our method outperforms the state-of-the-art semi-supervised methods, which demonstrates its effectiveness for medical image segmentation.
arXiv Detail & Related papers (2022-07-24T07:45:47Z) - Pathological Retinal Region Segmentation From OCT Images Using Geometric
Relation Based Augmentation [84.7571086566595]
We propose improvements over previous GAN-based medical image synthesis methods by jointly encoding the intrinsic relationship of geometry and shape.
The proposed method outperforms state-of-the-art segmentation methods on the public RETOUCH dataset having images captured from different acquisition procedures.
arXiv Detail & Related papers (2020-03-31T11:50:43Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.