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CT-Free Electromagnetic Navigation Percutaneous Localization for Pulmonary Nodules Undergoing Sublobar Resection

29. juli 2026 opdateret af: Jianle Chen

Clinical Evaluation of CT-Free Electromagnetic Navigation Percutaneous Localization System for Pulmonary Nodules Undergoing Sublobar Resection: A Multicenter Observational Cohort Study

Pulmonary nodules, particularly small and non-palpable nodules, present challenges for accurate localization during sublobar lung resection. This multicenter observational cohort study evaluated the feasibility, accuracy, and safety of CT-Free electromagnetic navigation percutaneous localization for pulmonary nodules requiring sublobar resection.

Patients who underwent CT-Free electromagnetic navigation localization were compared with patients who received conventional CT-guided localization. The primary outcome was localization success rate, defined as the distance between the localization marker and the pulmonary nodule center being within 10 mm.

Secondary outcomes included localization procedure time, conversion rate to other localization methods, surgical success rate, perioperative complications, postoperative hospitalization duration, and medical resource utilization.

Studieoversigt

Status

Afsluttet

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

153

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Jiangsu
      • Nantong, Jiangsu, Kina
        • Nantong First People's Hospital
      • Nantong, Jiangsu, Kina
        • Nantong Sixth People's Hospital
      • Nantong, Jiangsu, Kina
        • Nantong University Affiliated Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients with pulmonary nodules requiring preoperative localization before sublobar lung resection at multiple participating centers.

Beskrivelse

Inclusion Criteria:

  1. Adults aged 18 years or older.
  2. Patients with pulmonary nodules requiring sublobar resection.
  3. Non-palpable pulmonary nodules requiring preoperative localization.
  4. Patients undergoing CT-Free electromagnetic navigation localization or CT-guided localization.

Exclusion Criteria:

  1. Central pulmonary nodules unsuitable for localization.
  2. Patients unable to undergo sublobar resection.
  3. Patients with severe cardiopulmonary dysfunction or major organ dysfunction.
  4. Pregnancy or breastfeeding.
  5. Patients participating in other clinical trials.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
CT-Free Electromagnetic Navigation Localization
Patients receiving CT-Free electromagnetic navigation percutaneous localization before sublobar resection for pulmonary nodules.
CT-Guided Localization
Patients receiving conventional CT-guided localization before sublobar resection for pulmonary nodules.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of Participants With Successful Localization Based on Marker-to-Nodule Distance ≤10 mm
Tidsramme: Immediately after surgical resection
The proportion of participants with successful pulmonary nodule localization, defined as a distance between the localization marker and the pulmonary nodule center of ≤10 mm, measured by postoperative pathological specimen evaluation.
Immediately after surgical resection

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of Participants Requiring Additional Localization Procedures
Tidsramme: During surgery
The proportion of participants requiring additional localization methods because of unsuccessful or inaccurate initial localization.
During surgery
Number of Participants With Procedure-Related Complications
Tidsramme: Within 30 days after surgery
Procedure-related complications including pneumothorax, pulmonary hemorrhage, and infection occurring after localization and surgery.
Within 30 days after surgery
Duration of Pulmonary Nodule Localization Procedure
Tidsramme: From initiation to completion of the localization procedure
The duration from initiation of localization preparation to completion of marker placement.
From initiation to completion of the localization procedure
Mean Distance Between Localization Marker and Pulmonary Nodule Center (mm)
Tidsramme: Immediately after surgical specimen resection
The mean distance between the localization marker and the pulmonary nodule center measured immediately after surgical specimen resection.
Immediately after surgical specimen resection
Mean Duration of Postoperative Hospital Stay
Tidsramme: Up to 30 days after surgical resection
The mean duration of hospitalization after surgical resection, calculated from the date of surgery to the date of hospital discharge.
Up to 30 days after surgical resection

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

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Studer store datoer

Studiestart (Faktiske)

24. juni 2025

Primær færdiggørelse (Faktiske)

28. marts 2026

Studieafslutning (Faktiske)

28. marts 2026

Datoer for studieregistrering

Først indsendt

19. juli 2026

Først indsendt, der opfyldte QC-kriterier

29. juli 2026

Først opslået (Faktiske)

4. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2025-K079

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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