In this study, we developed an all-around 3D plant modeling system that operates using images and is capable of measuring plants non-destructively without any contact. During the fabrication of this device, we selected a method capable of performing 3D model reconstruction from multiple images. We then developed an improved SfM-MVS (Structure from Motion / Multi-View-Stereo) method that enables 3D reconstruction by simply capturing images with a camera. The resulting image-based method offers a high degree of freedom because the hardware and software can comprise commercially available products, and it permits the use of one or more cameras according to the shape and size of the plant. The advantages of the image-based method are that 3D reconstruction can be conducted at any time as long as the images are already taken, and that the desired locations can be observed, measured, and analyzed from 2D images and a 3D point cloud. The device we developed is capable of 3D measurements and modeling of plants from a few millimeters to 2.4 m of height using this method. This article explains this device, the principles of its composition, and the accuracy of the models obtained from it.
ObjectivesThe number of patients receiving antiplatelet therapy (APT) who have undergone laparoscopic radical nephrectomy is increasing. However, it is unclear whether APT affects the outcomes of patients undergoing radical nephrectomy. We investigated the perioperative outcomes of radical nephrectomy in patients with and without APT.MethodsWe retrospectively collected data from 89 Japanese patients who underwent laparoscopic radical nephrectomy for clinically diagnosed renal cell carcinoma (RCC) at Kokura Memorial Hospital between March 2013 and March 2022. We analyzed information related to APT. We divided the patients into two groups: the APT group (patients receiving APT) and the N‐APT group (patients not receiving APT). Moreover, the APT group was further divided into the C‐APT group (patients with continuous APT) and the I‐APT group (patients with interrupted APT). We compared the surgical outcomes of these groups.ResultsAmong 89 patients eligible for the study, 25 received APT and 10 continued APT. Even though the patients who received APT had a high American Society of Anesthesiologists physical status and many complications, including smoking, diabetes, hypertension, and chronic heart failure, no significant difference in the intra‐ or postoperative outcomes, including bleeding complications, was observed regardless of whether the patients received APT or continued APT.ConclusionsWe concluded that in laparoscopic radical nephrectomy, continuation of APT is an acceptable strategy for patients with thromboembolic risk caused by interruption of APT.
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