scholarly journals Peripheral pure ground-glass opacity: segmentectomy versus wedge resection

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Taobo Luo ◽  
Qixun Chen ◽  
Jian Zeng ◽  
Lei Cai ◽  
Xiancong Huang
Keyword(s):  
Pulmonary Function ◽  
Surface Area ◽  
Wedge Resection ◽  
Three Dimensional ◽  
Ground Glass Opacity ◽  
Good Prognosis ◽  
Ground Glass ◽  
Success Rates ◽  
Target Segment ◽  
Cut Surface

Abstract Introduction Sublobar resection has been widely accepted for treating pure ground-glass opacities (GGOs). As GGOs have good prognosis, preserving postoperative pulmonary function is the major concern in surgery. No studies have yet compared the success rates of pulmonary function reservation between segmentectomy and wedge resection. Method The three-dimensional rebuild of computed tomography (CT) images was performed, the segmentectomy and wedge resection of the GGO in the target segment were simulated, and the area of cut surface was measured, which was important data for successful postoperative pulmonary recruitment maneuvers. Result With equal volumes of tissue removed, segmentectomy and wedge resection showed similar surface area loss for RS4 and RS5, followed by LS7 + 8, LS6 and LS1 + 2 segments. Compared with other segments, wedge resection performed in RS10, LS3, LS10, RS9 and RS7 may lead to a loss of lot more surface area than segmentectomy. Conclusion Wedge resection is suggested for segments RS4, RS5, LS1 + 2 and LS7 + 8, whereas segmentectomy is advised for segments RS1, LS4 + 5 and RS2. Meanwhile, deep wedge resection should be avoided for segments RS8, RS7, RS10, LS3, LS10. RS9 and LS9, in order to preserve a larger lung surface area.

scholarly journals Preoperative Prediction of Ki-67 Labeling Index By Three-dimensional CT Image Parameters for Differential Diagnosis Of Ground-Glass Opacity (GGO)

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0129206 ◽  
Author(s):  
Mingzheng Peng ◽  
Fei Peng ◽  
Chengzhong Zhang ◽  
Qingguo Wang ◽  
Zhao Li ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Three Dimensional ◽  
Ground Glass Opacity ◽  
Labeling Index ◽  
Ground Glass ◽  
Ct Image ◽  
Ki 67 ◽  
Preoperative Prediction

Delayed cut-end recurrence after wedge resection for pulmonary ground-glass opacity adenocarcinoma despite negative surgical margin

2019 ◽  
Vol 68 (6) ◽  
pp. 644-648
Author(s):  
Keigo Sekihara ◽  
Junji Yoshida ◽  
Makoto Oda ◽  
Tomonari Oki ◽  
Takuya Ueda ◽  
...  
Keyword(s):  
Wedge Resection ◽  
Surgical Margin ◽  
Ground Glass Opacity ◽  
Ground Glass

Lung Adenocarcinoma Invasiveness Risk in Pure Ground-Glass Opacity Lung Nodules Smaller than 2 cm

2018 ◽  
Vol 67 (04) ◽  
pp. 321-328 ◽  
Author(s):  
Geun Dong Lee ◽  
Chul Hwan Park ◽  
Heae Surng Park ◽  
Min Kwang Byun ◽  
Ik Jae Lee ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Lung Adenocarcinoma ◽  
Wedge Resection ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Maximum Diameter ◽  
Lung Nodules ◽  
Adenocarcinoma In Situ ◽  
Invasive Adenocarcinoma ◽  
Maximal Diameter

Background We aimed to identify clinicopathologic characteristics and risk of invasiveness of lung adenocarcinoma in surgically resected pure ground-glass opacity lung nodules (GGNs) smaller than 2 cm. Methods Among 755 operations for lung cancer or tumors suspicious for lung cancer performed from 2012 to 2016, we retrospectively analyzed 44 surgically resected pure GGNs smaller than 2 cm in diameter on computed tomography (CT). Results The study group was composed of 36 patients including 11 men and 25 women with a median age of 59.5 years (range, 34–77). Median follow-up duration of pure GGNs was 6 months (range, 0–63). Median maximum diameter of pure GGNs was 8.5 mm (range, 4–19). Pure GGNs were resected by wedge resection, segmentectomy, or lobectomy in 27 (61.4%), 10 (22.7%), and 7 (15.9%) cases, respectively. Pathologic diagnosis was atypical adenomatous hyperplasia, adenocarcinoma in situ, minimally invasive adenocarcinoma (MIA), or invasive adenocarcinoma (IA) in 1 (2.3%), 18 (40.9%), 15 (34.1%), and 10 (22.7%) cases, respectively. The optimal cutoff value for CT-maximal diameter to predict MIA or IA was 9.1 mm. In multivariate analyses, maximal CT-maximal diameter of GGNs ≥10 mm (odds ratio, 24.050; 95% confidence interval, 2.6–221.908; p = 0.005) emerged as significant independent predictor for either MIA or IA. Estimated risks of MIA or IA were 37.2, 59.3, 78.2, and 89.8% at maximal GGN diameters of 5, 10, 15, and 20 mm, respectively. Conclusion Pure GGNs were highly associated with lung adenocarcinoma in surgically resected cases, while estimated risk of GGNs invasiveness gradually increased as maximal diameter increased.

Lung cancer patients showing pure ground-glass opacity on computed tomography are good candidates for wedge resection

Lung Cancer ◽  
2004 ◽  
Vol 44 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Haruhiko Nakamura ◽  
Hisashi Saji ◽  
Akihiko Ogata ◽  
Takamoto Saijo ◽  
Shinya Okada ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Cancer Patients ◽  
Wedge Resection ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Lung Cancer Patients

scholarly journals Three-Dimensional Ground Glass Opacity Ratio in CT Images Can Predict Tumor Invasiveness of Stage IA Lung Cancer

2016 ◽  
Vol 57 (5) ◽  
pp. 1131 ◽  
Author(s):  
Woo Sik Yu ◽  
Sae Rom Hong ◽  
Jin Gu Lee ◽  
Jae Seok Lee ◽  
Hee Suk Jung ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Three Dimensional ◽  
Ground Glass Opacity ◽  
Ct Images ◽  
Ground Glass ◽  
Tumor Invasiveness ◽  
Stage Ia

Lateralizing Calcaneal Osteotomies and Their Effect on Calcaneal Alignment: A Three-Dimensional Digital Model Analysis

2018 ◽  
Vol 39 (8) ◽  
pp. 970-977 ◽  
Author(s):  
Elizabeth A. Cody ◽  
Andrew P. Kraszewski ◽  
Matthew S. Conti ◽  
Scott J. Ellis
Keyword(s):  
Surface Area ◽  
Contact Surface ◽  
Wedge Resection ◽  
Three Dimensional ◽  
Deformity Correction ◽  
Digital Model ◽  
Foot Deformities ◽  
Contact Surface Area ◽  
Lateral Translation ◽  
Inferior Aspect

Background: Few authors have directly compared multiple types of lateralizing calcaneal osteotomies (LCOs) in terms of their ability to achieve deformity correction. The aim of this research was to use a digital model of a varus hindfoot to compare 4 different LCOs in terms of deformity correction and amount of tuberosity lateralization required. The authors hypothesis was that osteotomies involving a wedge resection would achieve greater correction with less lateralization. Methods: A weightbearing computed tomographic scan of a patient with a varus hindfoot deformity was used to construct a 3-dimensional digital model of the hindfoot, preserving weightbearing alignment. Four different LCOs were modeled: a standard oblique osteotomy, a Dwyer osteotomy, a modified Dwyer osteotomy involving lateralization in addition to wedge resection, and a Malerba Z-type osteotomy with wedge resection and lateralization. Incremental corrections were performed with each osteotomy type, and amount of correction was assessed with a vertical hindfoot angle and measurement of the lateral translation of the most inferior aspect of the calcaneus. Calcaneal length and osteotomy contact surface area were also measured. Results: The modified Dwyer osteotomy led to the greatest improvements in the vertical hindfoot angle and lateral translation, followed by the Malerba osteotomy. The standard and Malerba osteotomies allowed the most preservation of calcaneal length; the Malerba and Dwyer osteotomies had the greatest contact surface area. Conclusion: LCOs that involve wedge resection as well as lateralization were able to achieve the greatest correction of hindfoot varus. Clinical Relevance: For the surgical treatment of cavovarus foot deformities, osteotomies with wedge resection in addition to lateralization enable more powerful correction.

Sign in / Sign up

Export Citation Format

Share Document