- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07653945
Red Dichromatic Imaging for Improving Post-Biopsy Bronchoscopic Field Visibility
The goal of this observational study is to learn whether red dichromatic imaging (RDI) can help doctors see the bronchoscopic field more clearly after a biopsy. The study will include adults who need a bronchoscopic biopsy because doctors can see an abnormal area inside the airway.During a bronchoscopic biopsy, bleeding can happen after tissue is taken. Blood may cover the biopsy area and make it harder for doctors to see where to continue the procedure.
RDI is an imaging mode that uses special colors of light to help show blood-covered areas more clearly.The main question this study aims to answer is:Does RDI improve visibility of the bronchoscopic field after bleeding caused by bronchoscopic biopsy? Researchers will compare images taken with standard white light imaging and RDI during the same bronchoscopy procedure. Both types of images will be taken after the first biopsy and before any field-clearing treatment is done.
Participants will have bronchoscopic biopsy as part of their regular medical care, have images taken using standard white light imaging and RDI during the same procedure, have routine follow-up for possible medical problems after bronchoscopy. Taking part in this study will not add extra biopsies or change the participant's regular medical care.
연구 개요
상태
연구 유형
등록 (추정된)
연락처 및 위치
연구 연락처
- 이름: Zhongbo Chen
- 전화번호: 86+13777125910
- 이메일: leonczb@163.com
연구 장소
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Hefei
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Hefei, Hefei, 중국, 230022
- Anhui Chest Hospital
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연락하다:
- Fei Tang
- 전화번호: +86-13505696936
- 이메일: tangfei1205@163.com
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Huzhou
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Zhejiang, Huzhou, 중국, 313000
- Huzhou Central Hospital
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연락하다:
- Jiayou Luo
- 전화번호: +86-13757071890
- 이메일: zhewenfu0647@163.com
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Jiaxing
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Zhejiang, Jiaxing, 중국, 314000
- The Second Hospital of Jiaxing
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연락하다:
- Na Li
- 전화번호: +86-18858334316
- 이메일: doctorlina@126.com
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Jinhua
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Zhejiang, Jinhua, 중국, 321100
- Lanxi Hospital of Traditional Chinese Medicine
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연락하다:
- Xin Shi
- 전화번호: +86-15356893371
- 이메일: 121354634@qq.com
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Ningbo
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Zhejiang, Ningbo, 중국, 315000
- The first affiliated Hospital of Ningbo University
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연락하다:
- Zhongbo Chen
- 전화번호: +86-13777125910
- 이메일: leonczb@163.com
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Shanghai Municipality
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Shanghai, Shanghai Municipality, 중국, 200030
- Shanghai Chest hospital
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연락하다:
- Ying Li
- 전화번호: +86-15821959854
- 이메일: myliying@123.com
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Zhoushan
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Zhejiang, Zhoushan, 중국, 316000
- Zhoushan Hospital
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연락하다:
- Haifeng Li
- 전화번호: +86-13666589830
- 이메일: 1770182534@qq.com
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Age ≥18 years.
- Visible abnormal endobronchial lesion under bronchoscopy, including endobronchial neoplasm, mucosal abnormality, airway stenosis, or other lesion requiring biopsy to determine its nature.
- Provision of informed consent to participate in this clinical study and signing of the informed consent form.
Exclusion Criteria:
- Presence of contraindications to bronchoscopy, such as severe cardiopulmonary disease, coagulation dysfunction (including patients receiving anticoagulant therapy and/or anticoagulant drugs who have not discontinued these drugs for more than 5 days before the examination), poor tolerance of anesthesia, psychiatric disease, or severe neurosis.
- Intra-procedural decrease in SpO₂ or inability to tolerate bronchoscopy.
- Obvious airway bleeding observed during bronchoscopy that may increase the risk of worsening the patient's condition.
- Images that are obviously blurred or out of focus, or that contain severe reflection, bubbles, or instrument obstruction, making subsequent image analysis impossible.
- Inability to cooperate with the study for any reason, or any other condition that the investigator considers unsuitable for study participation.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Proportion of post-biopsy bronchoscopic fields judged suitable for direct procedural continuation
기간: Periprocedural
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Paired white light imaging and red dichromatic imaging images will be assessed by independent evaluators.
A bronchoscopic field will be judged suitable for direct procedural continuation if the biopsy site, lesion surface, or lesion boundary remains identifiable and biopsy or subsequent bronchoscopic procedures can continue without additional field-clearing intervention.
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Periprocedural
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Visual distinguishability score between the bleeding area and surrounding blood-covered background
기간: Periprocedural
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Paired white light imaging and red dichromatic imaging images will be assessed by independent evaluators.
The visual distinguishability between the biopsy-related bleeding area and the surrounding blood-covered background will be scored on a 4-point scale.
A score of 1 indicates that the two areas are almost indistinguishable, and a score of 4 indicates that the two areas are clearly distinguishable and easy to identify.
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Periprocedural
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Objective color difference between the bleeding area and surrounding blood-covered background
기간: Periprocedural
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Objective color difference will be measured using paired white light imaging and red dichromatic imaging images.
Regions of interest will be selected from the biopsy-related bleeding area and the surrounding blood-covered background.
Color parameters will be measured in the CIE 1976 L*a*b* color space, and the overall color difference will be calculated as ΔE.
Differences in the L*, a*, and b* channels may also be analyzed.
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Periprocedural
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기타 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Proportion of bronchoscopic fields judged suitable for procedural continuation after one field-clearing intervention
기간: Periprocedural
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Among cases in which both white light imaging and red dichromatic imaging are initially judged unsuitable for direct procedural continuation, one field-clearing intervention may be performed according to clinical need.
This may include suction, irrigation, cold saline, topical epinephrine, or other necessary measures.
After this intervention, paired white light imaging and red dichromatic imaging images will be assessed to determine whether the bronchoscopic field is suitable for continuation of biopsy or subsequent bronchoscopic procedures.
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Periprocedural
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .