Tomography, Год журнала: 2025, Номер 11(6), С. 60 - 60

Опубликована: Май 23, 2025

Background: CT image guidance and navigation, although routinely used in complex endovascular procedures, is an unexplored territory evolving vascular robotic procedures. In surgery, it promises the better localization of vasculature, optimization port placement, less inadvertent tissue damage, increased patient safety during dissection retroperitoneal structures. However, unknown displacement resulting from induced pneumoperitoneum positional changes compared to preoperative scan can pose significant limitations reliability guidance. We aimed study organs vasculature due factors such as intra-abdominal pressure (IAP) CO2 insufflation positioning (PP) using intraoperative imaging a cadaveric model. Methods: A thawed, fresh-frozen human model was positioned according simulated procedural workflows. Intra-arterial, contrast-enhanced scans were performed after insertion four laparoscopic ports abdomen. with 0–5–15–25 mmHg IAPs supine, left lateral decubitus, right Trendelenburg, reverse Trendelenburg positions. Euclidean distances between fixed anatomical bony landmarks measured across different scans. Results: Comparing effects various baseline (zero IAP) same PP, average for ranged 0.6 3.0 mm (SD 1.0–2.8 mm). When changing PPs while maintaining IAP, 2.0 15.0 1.7–7.2 Conclusions: Our preliminary findings single suggest minimal (~3 maximum) target retroperitoneum elevated IAP supine position higher positioning. Similar studies are needed quantify workflow-specific anatomy-specific deformation, which would be invaluable developing validating advanced deformation models, facilitating routine applicability usefulness delineation

Язык: Английский