Validating the accuracy of image-guided surgical systems is a challenging and important problem which has received little attention in the literature. Potential sources of inaccuracy include: CT imaging noise, model generation errors, errors introduced by fixturing, intra-operative data noise, registration errors, and inaccuracies in surgical tools and actions. In this paper, we discuss our exp...

The process of 3D freehand ultrasound acquisition consists of two steps: scanning and reconstruction. Prior to scanning, a position sensor is attached to the probe for tagging each image with its position and orientation in space. A crucial step prior to reconstruction and visualization is calibration of the ultrasound probe with the attached position sensor, i.e. determining the position and o...

OBJECTIVE To determine if image-guided spine surgery is cost effective. METHODS A prospective case series of the first 100 patients undergoing thoracolumbar pedicle screw instrumentation under image-guidance was compared to a retrospective control group of the last 100 patients who underwent screw placement prior to the use of image-guidance. The image-guidance system was NaviVision (Vector V...

This paper presents the development and evaluation of video augmentation on the stereoscopic da Vinci S system with intraoperative image guidance for base of tongue tumor resection in transoral robotic surgery (TORS). Proposed workflow for image-guided TORS begins by identifying and segmenting critical oropharyngeal structures (e.g., the tumor and adjacent arteries and nerves) from preoperative...

Image-guided surgery potentially enhances intraoperative safety and outcomes in a variety of craniomaxillofacial procedures. We explore the efficiency of one intraoperative navigation system in a single complex craniofacial case, review the initial and recurring costs, and estimate the added cost (e.g., additional setup time, registration). We discuss the potential challenges and benefits of ut...

In recent years, breast cancer incidence has increased year by year, which makes research on treatment methods critical. Intervention surgery is a new development in treatment. However, the operation complicated and lasts for long time. The doctor’s can no longer meet clinical needs. intervention robot characteristics of minimal invasiveness, operability, high flexibility so that it compensate ...

Fluorescence image-guided surgery (FIGS) is an emerging technique in oncology, neurology, and cardiology. To adapt intraoperative imaging for various surgical applications, increasingly flexible and compact FIGS instruments are necessary. We present a compact, portable FIGS system and demonstrate its use in cardiovascular mapping in a preclinical model of myocardial ischemia. Our system uses fi...

PURPOSE Navigation for current robotic assisted surgical techniques is primarily accomplished through a stereo pair of laparoscopic camera images. These images provide standard optical visualization of the surface but provide no subsurface information. Image guidance methods allow the visualization of subsurface information to determine the current position in relationship to that of tracked to...

Within the next few years it is envisaged that a number of computer assisted surgery products will become available. For many surgical procedures, outcome of surgery will rely on the accuracy and repeatability with which a computer assisted surgical tool performs its task. This paper presents a Computer Assisted Orthopaedic System (CAOS) which takes an image guided approach to planning and impl...