基于推的骨瘤分类与X射线图-与过去的联系
Florian Hinterwimmer1,2, Ricardo Smits Serena3,4, Nikolas Wilhelm3
1Department of Orthopaedics and Sports Orthopaedics, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany. florian.hinterwimmer@tum.de.
European radiology
|March 15, 2024
概括
这项研究开发了一种人工智能算法,用于从放射图片中对骨瘤进行分类,将患者与类似的过去病例联系起来. 这种新方法显著优于现有模型,有助于早期和具体的诊断.
科学领域:
- 整形外科手术 整形外科手术
- 放射学 放射学是一门学科.
- 人工智能的人工智能
- 医学成像分析 医学成像分析
背景情况:
- 准确的骨瘤分类对于早期诊断和治疗计划至关重要.
- 将未被诊断的患者与类似的历史病例联系起来,可以提高诊断的准确性.
- 目前用于从放射图片进行骨瘤分类的方法存在局限性.
研究的目的:
- 开发和评估一种算法,将未被诊断的骨瘤患者与以前的放射性病史联系起来.
- 使用深度学习实现多个骨瘤实体的同时分类.
- 通过自动化系统,使骨瘤的早期和具体诊断成为可能.
主要方法:
- 一项回顾性研究策划了2000-2021年的数据,包括809名患者和1792张X射线图.
- 实现了ResNet和变压器模型,通过深度学习提取图像特征.
- 基于哈希的近邻推方法将类似的图像聚集在一起,以通过多数投票进行分类.
主要成果:
- 该模型实现了高性能指标:92.86%的准确性,92.86%的精度和34.08%的回忆 (k=3).
- 这显著超过了最先进的模型,这些模型的得分较低.
- 数据集包括十种常见的原发性骨瘤实体,其中骨质状瘤是最常见的.
结论:
- 这种新的算法有效地根据X光照对骨瘤进行分类,并与先前的患者数据进行链接.
- 这种方法在诊断准确性和效率方面超过了当前的模型.
- 该工具可以支持临床医生,特别是那些经验有限的临床医生,在骨瘤诊断中.
相关概念视频
Bone Remodeling
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Osteoclasts in Bone Remodeling
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Classification of Bones
The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
Long and Short Bones
The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Radiological Investigation I: X-ray and CT
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 the...
Radiological Investigation III: Pulmonary Angiogram and PET Scan
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...


