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

29. juli 2026 oppdatert av: 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.

Studieoversikt

Status

Fullført

Forhold

Studietype

Observasjonsmessig

Registrering (Faktiske)

153

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

Voksen
Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

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

Beskrivelse

Inclusion Criteria:

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

Exclusion Criteria:

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Antall grupper / kohorter

Kohorter og intervensjoner

Gruppe / Kohort
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.

Hva måler studien?

Primære resultatmål

Resultatmål	Tiltaksbeskrivelse	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	Tiltaksbeskrivelse	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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Jianle Chen

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

24. juni 2025

Primær fullføring (Faktiske)

28. mars 2026

Studiet fullført (Faktiske)

28. mars 2026

Datoer for studieregistrering

Først innsendt

19. juli 2026

Først innsendt som oppfylte QC-kriteriene

29. juli 2026

Først lagt ut (Faktiske)

4. august 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)