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In the endovascular surgery, the master and slave catheter operation system benefits surgeons for it prevents them from X-ray exposure. However, the separated positions prevent the surgeons feel the catheter insertion force as if he or she threads the catheter directly into the patients. Thus, it's important to measure the proximal force on the slave side in order to feedback to master side's haptic...
Sub-surface information during a laparoscopic surgery is captured with a near infrared imaging where the tissue is highlighted with the help of an indocyanine dye injected to the patient before the surgery. The surgeons can use such system during the surgery, however, they need to swap the light source between infra-red and the white light to complete the surgery. Swapping the light source causes...
The current study describes a technique for reconstructing a three dimensional surface from multiple images of the (single camera) endoscopic video. A 3D shape of the scene in each image frame of the endoscopic video was reconstructed using shape from shading technique. The characteristic feature points on the 2D images were detected using SURF algorithm and the features were matched using BRIEF and...
We study a surgical cases assignment problem (SSA) of determining whether patients can be operated in the planning period and, if so, to determine the surgery date and location with the objective of maximizing the revenue of surgical suite. A major difficulty stems from the fact that the service time for each surgery is an uncertain parameter, and even small deviations occur between the actual and...
In this paper, we investigated the efficient management of operating room in hospitals. We present a stochastic model with the objective of minimizing the operating costs of hospital. The patient preference and stochastic surgery demand are considered in the model, and then a column generation (CG)-based preference algorithm is proposed to solve the issue of surgery block-scheduling problem. By means...
Given the poor prognosis of esophageal cancer and the invasiveness of combined modality treatment, improved prognostic scoring systems are needed. We developed a fuzzy logic-based system to improve the predictive performance of a risk score based on the serum concentrations of C-reactive protein (CRP) and albumin in a cohort of 271 patients with esophageal cancer before radiotherapy. Univariate and...
Deformable objects raise a complex combination of issues ranging from estimating mechanical parameters, solving large systems of differential equations, detecting collisions, modeling responses to collisions. Some issues in surgical simulation such as collision detection and feedback force computation still lack adequate solutions. To resolve these problems, we researched on the haptic rendering system...
For developing a surgical simulation platform that not only accords with software design standards but also conforms with clinical professional requirements; proposed designing and developing surgical simulation platform using COM (Component Object Model) component technology. Surgical simulation platform based on COM designed three core module: model management; surgical planning; surgical evaluating;...
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