ChiCTR2500114898 版本V1.0 版本创建时间2025/12/18 16:35:12 中国临床试验注册中心

审核状态:

Project audit state:

通过审核

Successful

注册号:

Registration number:

ChiCTR2500114898 

最近更新日期:

Date of Last Refreshed on:

2025-12-18 16:35:04 

注册时间:

Date of Registration:

2025-12-18 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

基于深度学习的曲面断层片下颌第三磨牙与下牙槽神经接触状态及位置关系分类研究

Public title:

Classification of Contact Status and Positional Relationship Between Mandibular Third Molar and Inferior Alveolar Nerve on Panoramic Radiographs Based on Deep Learning

注册题目简写:

深度学习辅助判断智齿与下牙槽神经的接触状态位置关系

English Acronym:

Deep learning for assessing the contact status and spatial relationship between wisdom teeth and the inferior alveolar nerve

研究课题的正式科学名称:

基于深度学习的曲面断层片下颌第三磨牙与下牙槽神经接触状态及位置关系分类研究

Scientific title:

Classification of Contact Status and Positional Relationship Between Mandibular Third Molar and Inferior Alveolar Nerve on Panoramic Radiographs Based on Deep Learning

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

杨洋 

研究负责人:

王兴 

Applicant:

Xing Wang 

Study leader:

Xing Wang 

申请注册联系人电话:

Applicant telephone:

+86 152 0297 2951

研究负责人电话:

Study leader's telephone:

+86 351 469 0868

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

Yangyang19990508@163.com

研究负责人电子邮件:

Study leader's E-mail:

13934224604@163.com

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

山西省太原市迎泽区新建南路63号

研究负责人通讯地址:

山西省太原市迎泽区新建南路63号山西医科大学口腔医院

Applicant address:

No. 63, Xinjian South Road, Yingze District, Taiyuan City, Shanxi Province

Study leader's address:

No. 63 Xinjian South Road, Yingze District, Taiyuan City, Shanxi Province

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

山西医科大学口腔医院

Applicant's institution:

Stomatological Hospital of Shanxi Medical University

研究负责人所在单位:

山西医科大学口腔医院(山西省口腔医院)

Affiliation of the Leader:

Stomatological Hospital of Shanxi Medical University

是否获伦理委员会批准:

是/Yes

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

2025SLL024

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

山西医科大学口腔医院医学伦理委员会

Name of the ethic committee:

Medical Ethics Committee of Shanxi Medical University Stomatology Hospital

伦理委员会批准日期:

Date of approved by ethic committee:

2025-12-01 00:00:00

伦理委员会联系人:

荆璇

Contact Name of the ethic committee:

Jing Xuan

伦理委员会联系地址:

山西省太原市迎泽区新建南路63号山西医科大学口腔医院

Contact Address of the ethic committee:

No. 63 Xinjian South Road, Yingze District, Taiyuan City, Shanxi Province

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 351 469 0109

伦理委员会联系人邮箱:

Contact email of the ethic committee:

jingx0818@163.com

研究实施负责(组长)单位:

山西医科大学口腔医院(山西省口腔医院)

Primary sponsor:

Stomatological Hospital of Shanxi Medical University

研究实施负责(组长)单位地址:

山西省太原市迎泽区新建南路63号山西医科大学口腔医院

Primary sponsor's address:

No. 63 Xinjian South Road, Yingze District, Taiyuan City, Shanxi Province

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

山西省

市(区县):

Country:

China

Province:

Shanxi

City:

单位(医院):

山西医科大学口腔医院(山西省口腔医院)

具体地址:

山西省太原市迎泽区新建南路63号山西医科大学口腔医院

Institution
hospital:

Stomatological Hospital of Shanxi Medical University

Address:

No. 63 Xinjian South Road, Yingze District, Taiyuan City, Shanxi Province

经费或物资来源:

自选课题(自筹)

Source(s) of funding:

Self-selected topic

Target disease:

Mandibular third molar impaction

Target disease code:

研究类型:

诊断试验

Study type:

Diagnostic test

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

诊断试验诊断准确性 

Study design:

Diagnostic test for accuracy 

研究目的:

1. 对比ResNet-50、ConvNeXt、ViT及Swin Transformer模型在曲面断层片下颌第三磨牙(MTM)与下牙槽神经(IAN)接触状态识别及位置关系分类任务中的性能差异;2. 优化样本不平衡处理策略,提升稀有类别的识别效果;3. 对比模型与不同年资医师的诊断结果,验证模型临床可信度;4. 构建两阶段智能评估系统,辅助MTM拔除术的术前风险评估。  

Objectives of Study:

1. Compare the performance of ResNet-50, ConvNeXt, ViT, and Swin Transformer models in identifying the contact status and classifying the positional relationship between the mandibular third molar (MTM) and inferior alveolar nerve (IAN) on panoramic radiographs; 2. Optimize sample imbalance handling strategies to improve the recognition effect of rare categories; 3. Compare the diagnostic results of the models with clinicians of different seniority to verify the clinical credibility of the models; 4. Construct a two-stage intelligent evaluation system to assist in the preoperative risk assessment of MTM extraction.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

1.年龄≥18 岁,就诊于山西医科大学口腔医院并同时接受曲面断层片(PAN)和 CBCT 检查的下颌第三磨牙(MTM)患者;
2.至少有一颗 MTM 牙根发育完全;
3.PAN 显示 MTM 与下牙槽神经(IAN)重叠;
4.同时拍摄PAN 和 CBCT 拍摄;

Inclusion criteria

1.Aged >= 18 years, patients with mandibular third molar (MTM) who underwent both panoramic radiography (PAN) and CBCT examination at Shanxi Medical University Stomatological Hospital; 2.At least one MTM with fully developed root; 3.PAN shows overlap between MTM and inferior alveolar nerve (IAN); 4.Interval between PAN and CBCT imaging at the same time;

排除标准:

1.MTM 过度颊舌向倾斜; 2.MTM 区域存在金属伪影; 3.MTM 区域存在病变。

Exclusion criteria:

1.Excessive buccolingual inclination of MTM; 2.Metal artifacts in the MTM area; 3.Lesions are present in the MTM area.

研究实施时间:

Study execute time:

From 2025-12-22 00:00:00 To 2026-12-22 00:00:00  

征募观察对象时间:

Recruiting time:

From 2025-12-22 00:00:00 To 2026-12-22 00:00:00  

诊断试验:

Diagnostic Tests:

金标准或参考标准(即可准确诊断某疾病的单项方法或多项联合方法,在本研究中用于诊断是否有该病的临床参考标准):

以CBCT诊断结果为金标准

Gold Standard or Reference Standard (The clinical reference standards required to establish the presence or absence of the target condition in the tested population in present study):

Using CBCT results as the gold standard

指标试验(即本研究的待评估诊断试验,无论为方法、生物标志物或设备,均请列出名称):

对比ResNet-50、ConvNeXt、ViT及Swin Transformer模型在曲面断层片下颌第三磨牙(MTM)与下牙槽神经(IAN)接触状态识别及位置关系分类任务中的性能差异

Index test:

Compare the performance of ResNet-50, ConvNeXt, ViT, and Swin Transformer models in identifying the contact status and classifying the positional relationship between the mandibular third molar (MTM) and inferior alveolar nerve (IAN) on panoramic radiographs

目标人群(可以是某种疾病患者或正常人群,详细描述其疾病特征,注意应纳入符合分布特点的全序列病例,具有良好的代表性)

下颌第三磨牙阻生患者

例数:

Sample size:

500

Target condition (The target condition is a particular disease or disease stage that the index test will be intended to identify. Please specify the characteristics in detail; the population should has a complete spectrum and good representative):

Patients with mandibular third molar impaction

容易混淆的疾病人群(即与目标疾病不易区分的一种或多种不同疾病,应避免采用正常人群对照的病例-对照设计):

例数:

Sample size:

0

Population with condition difficult to distinguish from the target condition, the normal population in a case-control study design should be avoid:

None

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

山西省 

市(区县):

 

Country:

China 

Province:

Shanxi 

City:

 

单位(医院):

山西医科大学口腔医院(山西省口腔医院) 

单位级别:

三级甲等 

Institution
hospital:

Stomatological Hospital of Shanxi Medical University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

MTM与IAN接触状态识别准确率

指标类型:

主要指标

Outcome:

Accuracy of MTM-IAN contact status recognition

Type:

Primary indicator

测量时间点:

模型训练完成后(测试集即时评估)

测量方法:

以CBCT诊断结果为金标准,计算模型预测结果与金标准的一致率

Measure time point of outcome:

Post-model training (immediate evaluation on test set)

Measure method:

Using CBCT results as the gold standard, calculate the consistency rate between model predictions and the gold standard

指标中文名:

灵敏度

指标类型:

次要指标

Outcome:

Sensitivity

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

特异度

指标类型:

次要指标

Outcome:

Specificity

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

组织:

Sample Name:

NA

Tissue:

人体标本去向

其它  

说明

Fate of sample:

0thers  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age years
最大 Max age years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

Randomization Procedure (please state who generates the random number sequence and by what method):

None

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

Blinding:

None

是否共享原始数据:

IPD sharing

No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

本研究不共享原始数据

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

No sharing of raw data in this study

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

通过回顾性提取山西医科大学口腔医院已存储的曲面断层片(.bmp格式)与CBCT影像(.dicom格式)完成数据采集;采用医院加密服务器存储数据,仅授权项目团队成员访问,确保数据安全

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

Data were collected by retrospectively extracting stored panoramic radiographs (.bmp) and CBCT images (.dicom) from Shanxi Medical University Stomatological Hospital; data were stored on the hospital's encrypted server, with access restricted to authorized project team members to ensure data security.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

有/Yes

注册人:

Name of Registration:

 2025-12-18 16:35:04