DenoMamba:用于低剂量CT无声化的一种融合状态空间模型
IEEE journal of biomedical and health informatics
|November 5, 2025
概括
使用状态空间建模的新方法DenoMamba通过有效捕获上下文来提高低剂量计算机断层扫描 (LDCT) 图像质量. 这种先进的无色化技术提高了医学成像诊断的准确性.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 信号处理 信号处理
背景情况:
- 低剂量计算机断层扫描 (LDCT) 减少了辐射暴露,但需要先进的无色化来提高诊断质量.
- 当前的深度学习模型难以有效地捕捉远程依赖.
- 现有的卷积和变压器模型在灵敏度或效率方面存在局限性.
研究的目的:
- 介绍DenoMamba,这是一种用于高准确度的LDCT图像重建的新型无线化方法.
- 利用状态空间建模 (SSM) 来有效捕捉短距离和长距离的环境.
- 为了提高低剂量CT图像的诊断质量.
主要方法:
- 开发了DenoMamba,一种使用空间和道SSM模块的级联架构.
- 在道SSM模块中使用封闭卷积网络,用于内容意识功能.
- 集成了一个卷积融合模块 (CFM),以巩固上下文和空间特征.
主要成果:
- 德诺曼巴在LDCT中表现出优异的性能,在25%和10%的剂量降低后消除.
- 与最先进的方法相比,实现了1.6dB的PSNR和1.7%的SSIM平均改进.
- 性能优于现有的卷积式,变压器和基于SSM的消毒器.
结论:
- 德诺曼巴有效地捕捉了高保真性LDCT报销的基本短期和长期背景.
- 拟议的方法为减少辐射协议的医疗图像质量提供了显著的进步.
- 丹诺曼巴为提高LDCT成像诊断精度提供了一个有希望的解决方案.
更多相关视频
07:53Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
Published on: October 13, 2023
2.0K
10:24Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
2.7K
相关概念视频
Computed Tomography
8.0K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.0K
State Space Representation
515
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
515
Imaging Studies III: Computed Tomography
275
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
275
Positron Emission Tomography
6.9K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
6.9K
Electron Microscope Tomography and Single-particle Reconstruction
2.8K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.8K
State Space to Transfer Function
550
The conversion of state-space representation to a transfer function is a fundamental process in system analysis. It provides a method for transitioning from a time-domain description to a frequency-domain representation, which is crucial for simplifying the analysis and design of control systems.
The transformation process begins with the state-space representation, characterized by the state equation and the output equation. These equations are typically represented as:
The transformation process begins with the state-space representation, characterized by the state equation and the output equation. These equations are typically represented as:
550
