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Related Experiment Video

Updated: Oct 4, 2025

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Preoperative Simulation of Thoracoscopic Segmentectomy.

Hitoshi Igai¹, Natsumi Matsuura¹, Mitsuhiro Kamiyoshihara¹

¹Department of General Thoracic Surgery, Japanese Red Cross Maebashi Hospital, Maebashi, Japan.

The Annals of Thoracic Surgery

|February 5, 2022

Summary

Preoperative simulation using Ziostation2 helps surgeons accurately determine surgical margins for nonpalpable lung tumors during thoracoscopic pulmonary segmentectomy, ensuring adequate resection.

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Area of Science:

Thoracic Surgery
Surgical Oncology
Medical Imaging

Background:

Thoracoscopic pulmonary segmentectomy is challenging for nonpalpable tumors near planned resection planes.
Achieving sufficient surgical margins can be difficult in these cases.

Purpose of the Study:

To evaluate the efficacy of preoperative simulation using Ziostation2 for margin assessment in thoracoscopic pulmonary segmentectomy.
To improve the accuracy of surgical margins for difficult-to-resect lung tumors.

Main Methods:

Preoperative simulation was performed using Ziostation2 software to calculate virtual surgical margins.
The virtual margins were compared to actual surgical margins achieved during thoracoscopic pulmonary segmentectomy.

Main Results:

Preoperative simulation accurately predicted surgical margins.
Margins of at least 20 mm were consistently achieved.
The discrepancy between virtual and actual margins was less than 5 mm.

Conclusions:

Preoperative simulation with Ziostation2 is a valuable tool for ensuring adequate surgical margins in thoracoscopic pulmonary segmentectomy.
This technique enhances surgical precision for nonpalpable malignant lung tumors near intersegmental planes.