Establishment and Application of a New Imaging System for Otology Based on Ultra-high Resolution CT

Recruiting

• Conditions: Hearing Loss; Vertigo; Tinnitus
• Interventions: Diagnostic Test: ultra-high-resolution computed tomography exams

• Registration Number: NCT05533840
• Lead Sponsor: Beijing Friendship Hospital

Brief Summary

Tinnitus, hearing loss and vertigo are the three major diseases of otology, affecting hundreds of millions of people in our country, and are major health problems. Ear structures and lesions are deeply embedded in the bone, and CT is the preferred examination technique. The key structures of the ear are small and the lesions are hidden. Spiral CT is "not visible" and "undiagnosed" due to insufficient spatial resolution. The ultra-high-resolution CT independently developed by our team has a spatial resolution of 50 μm, which is 6 times higher than that of high-end spiral CT, and solves the problem of "not showing" ear diseases. However, with the transformation of imaging modes and the improvement of display capabilities, the imaging system of helical CT is no longer applicable. It is urgent to carry out systematic research to create matching imaging plans, imaging anatomy standards and disease assessment standards to solve the problem of "undiagnosed". problem. This project plans to build an adult and pediatric imaging solution based on ultra-high-resolution CT to optimize image quality and radiation dose; comprehensively evaluate conduction, sensory, and surgical-related fine structures of the ear, and establish a new 0.1mm-scale image anatomy atlas; A prospective study conducted by the center analyzes the hidden pathological changes of tinnitus, deafness and vertigo, evaluates the diagnostic efficacy of ultra-high-resolution CT for the above diseases, and establishes new diagnostic criteria for lesion detection, symptom correlation, and efficacy evaluation. This project will bring new changes to the practice of otology clinical diagnosis and treatment

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2022-08-30
• Status Verified: 2022-09
• Study Start: 2022-09
• Study First Submitted QC: 2022-09-05
• Last Update Submitted: 2022-09-05
• Study First Posted: 2022-09-09
• Last Update Posted: 2022-09-09
• Primary Completion: 2024-12
• Study Completion: 2024-12

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 1500

Inclusion Criteria

• Meet the ethical requirements of U-HRCT examination
  • Can cooperate to complete U-HRCT examination
  • There is no relevant medical history in the side ear scanned

Exclusion Criteria

• Clinical symptoms related to middle and inner ear lesions, such as conduction deafness, sensorineural hearing loss, mixed deafness, vertigo, etc.
  • Congenital inner ear malformation
  • Diseases causing bone changes around the middle and inner ear, such as otitis media, tumors , otosclerosis, fibrous dysplasia, etc.
  • history of previous ear surgery and trauma
  • CT image artifacts or incomplete scan coverage
  • incomplete clinical data

2. For patients with otological diseases

Inclusion Criteria:

• Due to tinnitus/deafness/peripheral vertigo/peripheral facial paralysis in the ENT department of our hospital
• Meet the ethical requirements of U-HRCT examination
• Can cooperate with the completion of U-HRCT examination
• Surgery in the ENT department of our hospital
• At least one follow-up or re-examination after discharge

Exclusion Criteria:

• History of previous ear surgery and trauma
• CT image artifacts or incomplete scanning coverage
• Incomplete clinical data

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Age ≥61	ultra-high-resolution computed tomography exams	Participants aged ≥61
Age under 18	ultra-high-resolution computed tomography exams	Participants under the age of 18
Age 51-60	ultra-high-resolution computed tomography exams	Participants aged 51-60
Age 18-30	ultra-high-resolution computed tomography exams	Participants aged 18-30
Age 31-40	ultra-high-resolution computed tomography exams	Participants aged 31-40
Age 41-50	ultra-high-resolution computed tomography exams	Participants aged 41-50

Primary Outcome Measures

Name	Time	Method
Quantitative diagnostic standard for ear diseases based on U-HRCT image	2022.1-2024.12	size in milimeter of conductive and senserineural hearing pathways
Subjective and objective evaluation methods for CT image quality	2022.1-2024.12	Image quality (Likert score) and image noise will be combined to report the optimal image quality-noise combination
Radiological anatomy of normal ears based on ultra-high resolution CT	2022.1-2024.12	angle in degree

Trial Locations

Locations (1)

Beijing Friendship Hospital, Capital Medical University; 🇨🇳 Beijing, Beijing, China