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Related Experiment Video

Updated: Jul 14, 2026

Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules

Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules

Published on: May 23, 2015

CT-Guided Anchored Needle Versus Hook-Wire Localization for Pulmonary Nodules: A Meta-Analysis.

Gang Wang¹, Chong-Jin Ren², Yi-Bing Shi¹

¹Department of Radiology, Xuzhou Central Hospital, Xuzhou.

Journal of Computer Assisted Tomography

|November 17, 2025

Summary

The anchored needle (AN) technique for computed tomography (CT)-guided pulmonary nodule localization offers higher success rates and fewer complications than the hook-wire (HW) method. This approach is safer and more effective for patients undergoing video-assisted thoracoscopic surgery (VATS).

Keywords:

anchored needle computed tomography hook-wire localization pulmonary nodule

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Area of Science:

Thoracic Surgery
Medical Imaging
Pulmonary Medicine

Background:

Preoperative computed tomography (CT)-guided localization is crucial for video-assisted thoracoscopic surgery (VATS) of pulmonary nodules (PNs).
Two common localization methods are the anchored needle (AN) and hook-wire (HW) techniques.
A comparative analysis is needed to evaluate their clinical performance and safety.

Purpose of the Study:

To compare the clinical performance and safety of CT-guided AN versus HW localization for PNs.
To assess key outcomes including localization success, complication rates, and patient pain.

Main Methods:

A meta-analysis of seven retrospective comparative studies involving 1557 patients was conducted.
Studies were identified through systematic searches of PubMed, Wanfang, and Cochrane Library databases.
Data on localization success, complications (pneumothorax, hemorrhage), pain scores, and procedure times were extracted and analyzed.

Main Results:

The AN technique showed a significantly higher successful localization rate compared to HW (P < 0.001).
AN localization resulted in significantly lower overall complication rates (P=0.01), including pneumothorax (P=0.003) and pulmonary hemorrhage (P=0.004).
Patients undergoing AN localization reported significantly lower pain scores (P < 0.001), with similar localization and VATS times between groups.

Conclusions:

CT-guided AN localization is superior to the HW method for PNs, offering improved success rates and a better safety profile.
The AN technique is associated with reduced complications and lower patient-reported pain.
AN localization is a recommended approach for facilitating VATS resection of pulmonary nodules.