- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne 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.
Przegląd badań
Status
Interwencja / Leczenie
Typ studiów
Zapisy (Szacowany)
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Zhongbo Chen
- Numer telefonu: 86+13777125910
- E-mail: leonczb@163.com
Lokalizacje studiów
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Hefei
-
Hefei, Hefei, Chiny, 230022
- Anhui Chest Hospital
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Kontakt:
- Fei Tang
- Numer telefonu: +86-13505696936
- E-mail: tangfei1205@163.com
-
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Huzhou
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Zhejiang, Huzhou, Chiny, 313000
- Huzhou Central Hospital
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Kontakt:
- Jiayou Luo
- Numer telefonu: +86-13757071890
- E-mail: zhewenfu0647@163.com
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Jiaxing
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Zhejiang, Jiaxing, Chiny, 314000
- The Second Hospital of Jiaxing
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Kontakt:
- Na Li
- Numer telefonu: +86-18858334316
- E-mail: doctorlina@126.com
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Jinhua
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Zhejiang, Jinhua, Chiny, 321100
- Lanxi Hospital of Traditional Chinese Medicine
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Kontakt:
- Xin Shi
- Numer telefonu: +86-15356893371
- E-mail: 121354634@qq.com
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Ningbo
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Zhejiang, Ningbo, Chiny, 315000
- The first affiliated Hospital of Ningbo University
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Kontakt:
- Zhongbo Chen
- Numer telefonu: +86-13777125910
- E-mail: leonczb@163.com
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Shanghai Municipality
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Shanghai, Shanghai Municipality, Chiny, 200030
- Shanghai Chest hospital
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Kontakt:
- Ying Li
- Numer telefonu: +86-15821959854
- E-mail: myliying@123.com
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Zhoushan
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Zhejiang, Zhoushan, Chiny, 316000
- Zhoushan Hospital
-
Kontakt:
- Haifeng Li
- Numer telefonu: +86-13666589830
- E-mail: 1770182534@qq.com
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Metoda próbkowania
Badana populacja
Opis
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.
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Proportion of post-biopsy bronchoscopic fields judged suitable for direct procedural continuation
Ramy czasowe: Periprocedural
|
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.
|
Periprocedural
|
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Visual distinguishability score between the bleeding area and surrounding blood-covered background
Ramy czasowe: Periprocedural
|
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.
|
Periprocedural
|
|
Objective color difference between the bleeding area and surrounding blood-covered background
Ramy czasowe: Periprocedural
|
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.
|
Periprocedural
|
Inne miary wyników
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Proportion of bronchoscopic fields judged suitable for procedural continuation after one field-clearing intervention
Ramy czasowe: Periprocedural
|
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.
|
Periprocedural
|
Współpracownicy i badacze
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- 2026-R2021-01
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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