Background: Postoperative pancreatic fistula (POPF) is a critical complication of laparoscopic gastrectomy (LG). However, there are no widely recognized anatomical landmarks to prevent POPF during LG. This study aimed to identify anatomical landmarks related to POPF occurrence during LG for gastric cancer and to develop an artificial intelligence (AI) navigation system for indicating these landmarks.
Methods: Dimpling lines (DLs)-depressions formed between the pancreas and surrounding organs-were defined as anatomical landmarks related to POPF. The DLs for the mesogastrium, intestine, and transverse mesocolon were named DMP, DIP, and DTP, respectively. We included 50 LG cases to develop the AI system (45/50 were used for training and 5/50 for adjusting the hyperparameters of the employed system). Regarding the validation of the AI system, DLs were assessed by an external evaluation committee using a Likert scale, and the pancreas was assessed using the Dice coefficient, with 10 prospectively registered cases.
Results: Six expert surgeons confirmed the efficacy of DLs as anatomical landmarks related to POPF in LG. An AI system was developed using a semantic segmentation model that indicated DLs in real-time when this system was synchronized during surgery. Additionally, the distribution of scores for DMP was significantly higher than that of the other DLs (p < 0.001), indicating the relatively high accuracy of this landmark. In addition, the Dice coefficient of the pancreas was 0.70.
Conclusions: The DLs may be used as anatomical landmarks related to POPF occurrence. The developed AI navigation system can help visualize the DLs in real-time during LG.
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http://dx.doi.org/10.1007/s00464-024-11117-x | DOI Listing |
Acta Med Acad
December 2024
Department of Anatomy, Medical Faculty, University in Sarajevo, Čekaluša 90, 71 000 Sarajevo, Bosnia and Herzegovina.
Objective: The goal of this research was to examine the morphological characteristics and exact anatomical positioning of the greater palatine foramen (GPF), with reference to nearby anatomical landmarks.
Material And Method: The research was performed on dry human skulls belonging to the Bosnian and Herzegovina population, using digital vernier calipers. The study began by noting the GPF's position relative to the maxillary molars, then measuring its distance from the median palatine suture (MPS), the incisive fossa (IF), the posterior border of the hard palate (PBHP), and the posterior nasal spine (PNS).
Am J Otolaryngol
December 2024
School of Medicine Medical Sciences Campus, Otolaryngology-Head and Neck Surgery Section, University of Puerto Rico, Puerto Rico.
Objectives: Airway compromise in neck cancer patients with distorted anatomy has been a challenge for head and neck surgeons. To the best of our knowledge, the use of ultrasound has not been reported as an adjunct prior to an awake urgent tracheostomy in these types of patients. Our main objective is to provide an additional tool for identification of vital neck structures in preparation for an awake tracheostomy.
View Article and Find Full Text PDFBackground: Understanding the conduction axis location aids in avoiding iatrogenic damage and guiding targeted heart rhythm therapy.
Objective: Cardiac structures visible with clinical imaging have been demonstrated to correlate with variability in the conduction system course. We aimed to standardize and assess the reproducibility of predicting the location of the atrioventricular conduction axis by cardiac computed tomographic.
J Biomech
December 2024
Centre for Orthopaedic Trauma and Research, Adelaide Medical School, University of Adelaide, Australia.
Biomechanical analysis is increasingly being undertaken in field-based settings, often using inertial sensors or video-based pose estimation. These advancements necessitate more practical and accessible scaling methods as alternatives to traditional laboratory-based techniques like optical marker-based scaling. LiDAR scanning is a technique that could provide a reliable and efficient means of scaling biomechanical models.
View Article and Find Full Text PDFSICOT J
December 2024
The Hazeley Academy, Emperor Drive, Hazeley, Milton Keynes, MK8 0PT, United Kingdom.
Introduction: Robot-assisted instrumentation during total hip arthroplasty (THA) has the potential to improve acetabular cup positioning. This study aimed to evaluate the precision of robotic-arm-assisted THA (rTHA) and assess whether the system can provide accurate cup positioning comparable to conventional THA (cTHA).
Methods: A single-center prospective cohort study consisting of 151 patients who underwent THA (108 rTHA and 43 cTHA).
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