The Guidance of Thin Cross- Section of CT in Anatomic Segmentectomy

The Second Hospital of Shandong University200 enrolled

Overview

Three-dimensional (3D) simulation of pulmonary vessels and the space between the lesion and adjacent tissues is regarded improving the safety and accuracy of video-assisted thoracoscopic surgery (VATS) for segmentectomy for ground glass opacity (GGO) in lung. However, not every thoracic surgeon can handle the technique, in addition, the 3D reconstruction originate from the thin CT scan. Actually, the investigators found that, the reading and comprehension of the thin cross- section of CT can guide the accurate anatomic segmentectomy in most situations. The investigators designed a retrospective study to compare the reading of thin cross- section of CT with 3D reconstruction or without 3D reconstruction during the guidance of anatomic segmentectomy.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

OTHER

Masking

DOUBLE

Enrollment

200

Conditions

Segmentectomy Video- Assisted Thoracoscopic Surgery Three-dimensional-computed Tomography (3D-CT)

Eligibility

Sex: ALLMin age: 25 YearsMax age: 85 Years

Medical Language ↔ Plain English

Inclusion Criteria: Selection criteria for VATS segmentectomy in the present study were as follows: (I) patients with single peripheral GGO lesion considered suspicious for malignancy; (II) the lesion \<2 cm in diameter and with at least one of the followings: (i) pure adenocarcinoma in situ (AIS) histology; (ii) nodule has ≥50% ground-glass appearance on high resolution CT; (iii) radiologic surveillance conforms a long doubling time (≥400 days). Exclusion Criteria: (I) patients with insufficient cardiopulmonary function; (II) other contraindication for segmentectomy.

Outcomes

Primary Outcomes

planning time (minutes)

the planning time for anatomic segmentectomy before surgery, including the time- cost of the decision making and the planning time for surgery

Time frame: from the first time of thin cross- section of CT is presented to the end of surgery, within 7 days

time before surgery (days)

days before surgery after being hospitalized

Time frame: from the day of being hospitalized to the day of surgery, within 5 days

operation time (minutes)

the duration of the operation time

Time frame: from beginning to the end of surgery, up to 180 minutes

confirmation time during surgery （number）

review time of the 3D reconstruction or the thin cross- section of CT during surgery

Time frame: Intraoperative

air leakage after surgery (days)

the days of air leakage after surgery