Lipiodol lOcalization for Ground-glass opacity mInimal Surgery: Rationale and design of the LOGIS trial

Park, Chul Hwan; Hur, Jin; Lee, Sang Min; Lee, Ji Won; Hwang, Sung Ho; Seo, Jae Seung; Lee, Kye Ho; Kwon, Woo Cheol; Kim, Tae Hoon; Choi, Byoung Wook

doi:10.1016/j.cct.2015.06.009

Cited by 11 publications

(10 citation statements)

References 37 publications

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“…The ongoing LOGIS trial is a prospective multicenter, controlled, comparative phase III trial designed to demonstrate the comparative usefulness and safety of lipiodol and hook-wire localization for GGO lung lesions [15] . Although the LOGIS trial is expected to provide valuable information, its non-randomized controlled study design renders it prone to selection and assessment bias.…”

Section: Discussionmentioning

confidence: 99%

“…The requirements for participating sites to contribute to the LOGIS registry are same as those stipulated for the LOGIS trial [15] .…”

Section: Methodsmentioning

confidence: 99%

“…However, an optimal pulmonary lesion localization method that is effective and safe for VATS has not yet been established. Currently, CT-guided hook-wire localization is the most widely used method for pre-VATS localization [15] . However, a previous meta-analysis reported that CT-guided hook-wire localization exhibited a lower success rate and higher complication rate than microcoil and lipiodol localization [16] .…”

Section: Introductionmentioning

confidence: 99%

“…Pulmonary lesion localization using lipiodol has been consistently reported as exhibiting a success rate of over 90% [16] . The ongoing LOcalization of Ground-glass-opacity for mInimal Surgery (LOGIS) trial involves comparison of effectiveness and post-procedural complications between the hook-wire and lipiodol localization methods for VATS resection of ground-glass opacity (GGO) lesions [15] . However, depending on nodule characteristics and operator experience, there could be variations in results.…”

Section: Introductionmentioning

confidence: 99%

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LOGIS (LOcalization of Ground-glass-opacity and pulmonary lesions for mInimal Surgery) registry: Design and Rationale

Park

Lee

et al. 2018

Contemporary Clinical Trials Communications

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Background and purposeAn optimal pulmonary localization technique for video-assisted thoracic surgery (VATS) of small lung nodules has not yet been established. The LOcalization of Ground-glass-opacity and pulmonary lesions for mInimal Surgery (LOGIS) registry aims to establish a multicenter database and investigate the usefulness and safety of localization techniques for small pulmonary lesions in individuals undergoing VATS.Methods/DesignThe LOGIS registry is a large-scale, multicenter cohort study, aiming to enroll 825 patients at 10 institutions. Based on the inclusion and exclusion criteria, all study participants with pulmonary lesions indicated for VATS will be screened and enrolled at each site. All study participants will undergo preoperative lesion localization by the hook-wire or lipiodol localization methods according to site-specific methods. Within a few hours of marking, thoracoscopic surgery will be done under general anesthesia by experienced thoracoscopic surgeons. The primary endpoints are the success and complication rates of the two localization techniques. Secondary endpoints include procedure duration, recurrence rate, and all-cause mortality. Study participant enrollment will be completed within 2 years. Procedure success rates and incidence of complications will be analyzed based on computed tomography findings. Procedure duration, recurrence rate, and all-cause mortality will be compared between the two techniques. The study will require 5 years for completion, including 6 months of preparation, 3.5 years for recruitment, and 1 year of follow-up endpoint assessment.DiscussionThe LOGIS registry, once complete, will provide objective comparative results regarding the usefulness and safety of the lipiodol and hook-wire localization techniques.

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Section: Discussionmentioning

confidence: 99%

“…The requirements for participating sites to contribute to the LOGIS registry are same as those stipulated for the LOGIS trial [15] .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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LOGIS (LOcalization of Ground-glass-opacity and pulmonary lesions for mInimal Surgery) registry: Design and Rationale

Park

Lee

et al. 2018

Contemporary Clinical Trials Communications

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“…3 Multiple preoperative localization methods have been used to localize the small lung nodule, such as CT-guided percutaneous puncture or hookwire, CT-guided (CT-G) injection of lipiodol or methylene blue dye, electromagnetic navigation bronchoscopic-guided dye marking, and virtual assisted lung mapping. [3][4][5][6] CT-G percutaneous needle puncture localization is currently the most commonly used approach for localization. Although this technique has a success rate of over 95%, the limitations are well documented too.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional printed navigational template for localizing small pulmonary nodules: A case‐controlled study

Chai

Zhang

et al. 2020

Thoracic Cancer

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Background Localization of small pulmonary nodules is an inevitable challenge for the thoracic surgeon. This study aimed to investigate the accuracy of three‐dimensional (3D) printing technology for localizing small pulmonary nodules, especially ground‐glass nodules (GGNs). Methods This study enrolled patients with peripheral small pulmonary nodules (≤ 2 cm) who required preoperative localization. In the comparison period, patients underwent both computed tomography‐guided (CT‐G) and 3D‐printing template guided (3D‐G) localization to compare the accuracies of the two methods. In the testing period, the 3D‐printing technique was implemented alone. The 3D‐printing physical navigational template was designed based on data from perioperative CT images. Clinical data, imaging data, surgical data, and evaluation index were collected for further analysis. The learning curve of the 3D‐printing localization technique was assessed using cumulative sum (CUSUM) analysis and multiple linear regression analysis. Results In the comparison period (n = 14), the success rates of CT‐G and 3D‐G were 100% and 92.9% (P = 0.31), respectively; in the testing period (n = 23), the success rate of 3D‐G was 95.6%. The localization times of CT‐G, 3D‐G (comparison), and 3D‐G (testing) were 23.6 ± 5.3, 19.3 ± 6.8, and 9.8 ± 4.6 minutes, respectively. The CUSUM learning curve was modeled using the equation: Y = 0.48X2 − 0.013X − 0.454 (R2 = 0.89). The learning curve was composed of two phases, phase 1 (the initial 20 patients) and phase 2 (the remaining 17 patients). Conclusions 3D printing localization has adequate accuracy and is a feasible and accessible strategy for use in localizing small pulmonary nodules, especially in right upper lobe. The use of this technique could facilitate lung nodule localization prior to surgery.

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The characteristics of the dipole espar antenna using the cross‐coplanar waveguide feed

Park

Lee

Choi

2015

Micro & Optical Tech Letters

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This article suggests a dipole electrically steerable parasitic array radiator (ESPAR) antenna that uses a crossed coplanar waveguide (CPW) transmission line that can be applied to beamspace multi‐input‐multioutput communication. The dipole antenna, which uses a vertically standing cylindrical structure, requires a feeding method that uses coaxial cable as the cable is connected inside the cylinder. As a result, it has the shortcoming of having to use cable with a limited diameter due to the cylindrical diameter as well as weak structure because of the flexible characteristic of coaxial cable. The antenna suggested in this article is rigid because it has a crossed PCB structure and it also has easier impedance matching than the cable feeding method because has a CPW transmission line. Moreover, the crossed CPW dipole ESPAR antenna turned out to have a radiation pattern similar to a dipole ESPAR antenna composed of a cylindrical structure. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2238–2242, 2015

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Lipiodol lOcalization for Ground-glass opacity mInimal Surgery: Rationale and design of the LOGIS trial

Cited by 11 publications

References 37 publications

LOGIS (LOcalization of Ground-glass-opacity and pulmonary lesions for mInimal Surgery) registry: Design and Rationale

LOGIS (LOcalization of Ground-glass-opacity and pulmonary lesions for mInimal Surgery) registry: Design and Rationale

Three‐dimensional printed navigational template for localizing small pulmonary nodules: A case‐controlled study

The characteristics of the dipole espar antenna using the cross‐coplanar waveguide feed

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