基于放射性特征,对COVID-19患者CT肺部发现的自动分类
Mahbubunnabi Tamal1, Murad Althobaiti1, Maryam Alhashim2,3
1Department of Biomedical Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
Biomedical physics & engineering express
|November 12, 2024
概括
手动选择的放射性特征可以准确地区分COVID-19肺部病理,如地面玻璃透明度 (GGO) 和整合. 这种方法提高了个性化治疗和监测疾病进展的严重性评分.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 人工智能在医学中的应用
背景情况:
- COVID-19肺部CT扫描显示了地面玻璃不透明 (GGO),整合和膜溢出.
- 总经营组织往往在合并之前,并表现出异质的外观.
- 目前的严重性评分方法忽略了肺组织的外观,只关注卷入的区域.
研究的目的:
- 在COVID-19肺部CT图像中识别异质性/放射性特征,以区分GGO,巩固和肺部溢液.
- 在COVID-19肺部成像分析中建立特征选择的基准.
- 为了提高COVID-19严重程度评分的准确性.
主要方法:
- 从44个特征中评估了四种特征选择方法.
- 这些方法包括手动选择,基因算法-K-近邻 (GA-KNN),基因算法-二元决策树 (GA-BDT) 和基因算法-人工神经网络 (GA-ANN).
- 一个人工神经网络 (ANN) 在独立的数据集上使用选定的功能进行了训练和验证.
主要成果:
- 通过手动选择9个放射性特征,获得了最高的精度 (85.7%) 和AUC (0.90).
- 自动方法 (GA-BDT,GA-KNN,GA-ANN) 的准确性较低 (78%,77.5%,76.8%).
- 手动选择的特征显示出更高的灵敏度和特异性.
结论:
- 九个手动选择的放射性特征使得准确的COVID-19严重程度得分.
- 这种方法有助于临床医生规划个性化治疗和监测治疗反应.
- 这些功能对于跟踪COVID-19在临床试验中的进展和疗效非常有价值.
相关概念视频
01:30Radiological Investigation I: X-ray and CT
214
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
214
01:20Imaging Studies for Cardiovascular System III: X-Ray
145
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
145
01:28Imaging Studies for Cardiovascular System V: CT
3
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
3
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
100
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
100
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
86
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
86
01:10Computed Tomography
4.3K
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...
4.3K