Application of Electromagnetic Navigation System in Pulmonary Nodule Localization
16 maj 2026 uppdaterad av: Haifeng Wang, Shanghai Pulmonary Hospital, Shanghai, China
Electromagnetic Navigation-Guided Versus CT-Guided Localization of Pulmonary Nodules: A Multicenter, Prospective, Randomized Controlled Trial
This study aims to design and conduct a multicenter, prospective, randomized controlled post-market clinical trial to validate the clinical efficacy of high-precision electromagnetic navigation technology.
Studieöversikt
Status
Har inte rekryterat ännu
Betingelser
Studietyp
Interventionell
Inskrivning (Beräknad)
400
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studiekontakt
- Namn: Shenghao Huang
- Telefonnummer: +86 153 5656 1656
- E-post: huangshplus5@163.com
Studieorter
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Shanghai, Kina
- Shanghai Pulmonary Hospital
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Kontakt:
- Haifeng Wang
- Telefonnummer: +8602156561656
- E-post: huangshplus5@163.com
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Nej
Beskrivning
Inclusion Criteria:
- Age 18-80 years, regardless of gender;
- Solitary single nodule, scheduled for lung nodule puncture and localization;
- Chest CT (lung window mode) showing a maximum nodule diameter ≤ 2 cm;
- Eastern Cooperative Oncology Group (ECOG) performance status score 0-2;
- Voluntary participation, with signed informed consent.
Exclusion Criteria:
- Not suitable for video-assisted thoracoscopic surgery;
- The distance between the center of the lesion and the dome of the diaphragm is < 3 cm;
- History of thoracic adhesion due to previous thoracotomy or pleural infection;
- Patients judged by the investigator to be unsuitable for preoperative transthoracic or transbronchial localization;
- Inability to complete follow-up or poor compliance.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
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Experimentell: Electromagnetic Navigation Localization Group
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Performed by an experienced thoracic surgeon or interventional radiologist under general or local anesthesia, the procedure is guided by an electromagnetic navigation system.
The procedural steps include: 1) preoperative import of the patient's CT data into the navigation system for path planning; 2) intraoperative coupling of the positioning sensor with the puncture instrument; 3) under real-time three-dimensional imaging guidance of the electromagnetic navigation system, performing percutaneous puncture to accurately place a positioning guidewire / microcoil / dye near the target pulmonary nodule; 4) postoperative CT scan to confirm the localization.
This is a single-session procedure.
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Aktiv komparator: CT-Guided Localization Group
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Performed by an experienced thoracic surgeon or interventional radiologist under local anesthesia, the procedure is guided using a CT scanner.
The steps include: 1) positioning the patient appropriately and performing a CT scan to determine the puncture site and path; 2) employing CT fluoroscopy or intermittent CT scanning for real-time guidance; 3) under CT image guidance, performing a percutaneous puncture to place a localization guidewire / microcoil / dye near the target pulmonary nodule; 4) performing a repeat CT scan post-procedure to confirm the localization position.
This is a single-session procedure.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Success rate of intraoperative localization of lung nodules
Tidsram: Day 0 (Intraoperative)
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Thoracoscopic exploration enables accurate identification and localization of markers (e.g., contrast dye, microcoils, etc.), with the distance between the center of the marker or the main imaging area and the center of the target nodule being ≤20 mm, and ultimately successfully guides the resection of the target lesion.
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Day 0 (Intraoperative)
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Localization Accuracy
Tidsram: Day 0 (Intraoperative)
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The shortest physical distance (unit: mm) between the actual localization marker point (e.g., the center of the dye) and the outer edge of the nodular lesion in the resected specimen.
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Day 0 (Intraoperative)
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Location Procedure Time
Tidsram: Day 0 (Intraoperative)
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CT-guided group: Time from the start of the initial localization planning CT scan to the completion of marker/needle deployment and withdrawal of instruments from the body surface. Electromagnetic navigation group: Time from when the bronchoscope passes the vocal cords to the completion of marker deployment and withdrawal of the guiding instrument (unit: min). |
Day 0 (Intraoperative)
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Conversion Rate
Tidsram: Day 0 (Intraoperative)
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The proportion of subjects in whom conversion from complete thoracoscopy to thoracotomy, or from the planned sublobar resection (wedge/segment) to an extended resection (e.g., lobectomy), was necessitated due to failure to locate the lesion, insufficient surgical margin resulting from excessive localization error, or severe complications related to localization (such as major hemorrhage).
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Day 0 (Intraoperative)
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Complication Rate
Tidsram: Day 0 through hospital discharge or Day 7 postoperatively, whichever comes first
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Record the incidence of all complications related to the localization procedure.
In addition to complications common to percutaneous approaches, such as pneumothorax and intrathoracic hemorrhage, airway-related complications, including airway mucosal injury/bleeding, bronchospasm, and severe hypoxemia, should be systematically documented.
Assessment should be performed based on the adverse event grading criteria.
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Day 0 through hospital discharge or Day 7 postoperatively, whichever comes first
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Radiation Exposure
Tidsram: Day 0 (Intraoperative)
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Dose-length product (DLP) value of radiation received by the patient, as recorded by the CT scanner (unit: mGy·cm).
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Day 0 (Intraoperative)
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Operative Time
Tidsram: Day 0 (Intraoperative)
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Time from the initiation of the skin incision for thoracoscopy to the completion of wound closure (unit: min).
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Day 0 (Intraoperative)
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Early Postoperative Pain Score
Tidsram: Day 0 (immediately after localization); 24 hours postoperatively
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Visual Analog Scale (VAS) or Numeric Rating Scale (NRS), scored from 0 to 10 points (with 0 representing no pain and 10 representing the most severe pain).
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Day 0 (immediately after localization); 24 hours postoperatively
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Utredare
- Huvudutredare: Haifeng Wang, Shanghai Pulmonary Hospital, Shanghai, China
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Beräknad)
1 maj 2026
Primärt slutförande (Beräknad)
1 januari 2027
Avslutad studie (Beräknad)
1 april 2027
Studieregistreringsdatum
Först inskickad
5 maj 2026
Först inskickad som uppfyllde QC-kriterierna
16 maj 2026
Första postat (Faktisk)
19 maj 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
19 maj 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
16 maj 2026
Senast verifierad
1 maj 2026
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- IRB-K26-427
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