Navigated Ultrasound in Laparoscopic Surgery

Lang, Thomas; Mrvik, Toril N. Hernesand Ronald

doi:10.5772/29554

Cited by 3 publications

(4 citation statements)

References 16 publications

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“…During image-guided surgery, diagnostic imaging is used in conjunction with images from the operative field to improve the localization and targeting of pathologies, as well as to monitor and control treatments. The combination of tracking technologies for recording the position of the patient and the surgical instruments with preoperative and intraoperative images provides a comprehensive assistance tool for guiding any MIS intervention [27,[89][90][91]. Image-guided technology allows for more precise and accurate procedures, allowing surgeons to decide the best approach to address a specific disease before the intervention [92].…”

Section: Image-guided Techniques For Pancreatic Surgerymentioning

confidence: 99%

“…Surgical navigation systems (SNS) combine preoperative and intraoperative image information with position and orientation tracking of surgical instruments during the surgical intervention as a surgical decision-making tool helping to improve the safety, accuracy, and efficiency of surgeries [27,91,92]. In MIS, due to surgeon having less visual and tactile perception compared to open surgery, image assistance becomes extensively helpful for 3D understanding of the surgical scenario and localization of lesion and essential anatomic structures.…”

Section: Surgical Navigationmentioning

confidence: 99%

“…The basic setup of a SNS consists of a preoperative image data (typically MR and CT), a tracking system (mainly electromagnetic or optical), a computer platform with screen, and the respective navigation software [89]. The combination of image-guided surgery with navigation technology consists of several steps, which are critical to ensure safety and accuracy of a procedure [27]: (1) acquisition of preoperative images and visualization for optimal diagnosis and planning, (2) accurate registration of preoperative data to the patient coordinate space and visualization in the OR, (3) intraoperative image acquisition and visualization/fusion with the preoperative images to update for anatomical shifts, and (4) postoperative imaging and visualization for evaluation of the surgical treatment.…”

Section: Surgical Navigationmentioning

confidence: 99%

“…Imageguided techniques can provide intraoperative margin assessment and visualization methods, which may be advantageous in guiding the surgeon to achieve curative resections. Some of these emerging modalities are intraoperative near-infrared fluorescence imaging and surgical navigation systems [26,27]. However, despite the high rate of positive resections in pancreatic surgery, there is limited medical literature regarding the use of navigation systems as a support during pancreatic interventions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Laparoscopic Pancreas Surgery: Image Guidance Solutions

Sánchez‐Margallo¹,

Langø²,

Hofstad³

et al. 2017

Laparoscopic Surgery

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Pancreatic ductal adenocarcinoma (PDA) is the fourth leading cause of cancer-related deaths. Surgery is the only viable treatment, but irradical resection rates are still high. Laparoscopic pancreatic surgery has some technical limitations for surgeons and tumor identification may be challenging. Image-guided techniques provide intraoperative margin assessment and visualization methods, which may be advantageous in guiding the surgeon to achieve curative resections and therefore improve the surgical outcomes. In this chapter, current available laparoscopic surgical approaches and image-guided techniques for pancreatic surgery are reviewed. Surgical outcomes of pancreaticoduodenectomy and distal pancreatectomy performed by laparoscopy, laparoendoscopic single-site surgery (LESS), and robotic surgery are included and analyzed. Besides, image-guided techniques such as intraoperative near-infrared fluorescence imaging and surgical navigation are presented as emerging techniques. Results show that minimally invasive procedures reported a reduction of blood loss, reduced length of hospital stay, and positive resection margins, as well as an improvement in spleenpreserving rates, when compared to open surgery. Studies reported that fluorescenceguided pancreatic surgery might be beneficial in cases where the pancreatic anatomy is difficult to identify. The first approach of a surgical navigation system for guidance during pancreatic resection procedures is presented, combining preoperative images (CT and MRI) with intraoperative laparoscopic ultrasound imaging.

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Section: Image-guided Techniques For Pancreatic Surgerymentioning

confidence: 99%

Section: Surgical Navigationmentioning

confidence: 99%

Section: Surgical Navigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Laparoscopic Pancreas Surgery: Image Guidance Solutions

Sánchez‐Margallo¹,

Langø²,

Hofstad³

et al. 2017

Laparoscopic Surgery

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Image-guided simulation of tissue deformation using a mechanical model on a surgical application

Nguyen

Huang

Fikfak

et al. 2016

Computer Methods in Biomechanics and Biomedical Engineering

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This paper presents a method for localizing the position of a liver and a tumor within the tissue during a minimally invasive liver operation. From pre-operative CT scans, the liver volume and its internal structures are segmented using image-processing techniques. Based on these segmentations, a three-dimensional mechanical model is built to compute the liver volume and internal structure displacement under boundary conditions such as external forces from the surgical instrument. This can help the surgeon understand the motion of internal structures when manipulating the liver. To validate our method, an experiment on a porcine liver explant was performed to assess the difference between actual tissue motion and the mechanical model.

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