Digital Commons Network^™

Gate Monte Carlo Simulations In A Cloud Computing Environment, Blake Austin Rowedder

UNLV Theses, Dissertations, Professional Papers, and Capstones

The GEANT4-based GATE is a unique and powerful Monte Carlo (MC) platform, which provides a single code library allowing the simulation of specific medical physics applications, e.g. PET, SPECT, CT, radiotherapy, and hadron therapy. However, this rigorous yet flexible platform is used only sparingly in the clinic due to its lengthy calculation time. By accessing the powerful computational resources of a cloud computing environment, GATE's runtime can be significantly reduced to clinically feasible levels without the sizable investment of a local high performance cluster. This study investigated a reliable and efficient execution of GATE MC simulations using a commercial cloud …

Validation Of A Novel Methodology For Evaluating Surgical Tissue Plane Identification, Syed T. Ali

Electronic Thesis and Dissertation Repository

Introduction: The ability to identify tissues planes is a fundamental surgical skill. This study attempts to validate a previously developed test for assessing this ability.

Methods: 48 video captured images from laparoscopic right hemicolectomies were presented on an iPad to 18 surgeons who were grouped based on experience (Consultants (C), Senior trainees (S), and the Junior trainees (J)). Subjects were asked to draw a line indicating the tissue plane of dissection. Lines were compared by a modified Hausdorff measure. Within group variability represented group precision and trainee accuracy was determined from comparison to Consultants.

Results: Within group comparisons demonstrated Consultants …

A Retrospective Analysis Of Paramedic Student Performance Under Simulated Stress, Nicholas Franklin Miller

Online Theses and Dissertations

The paramedic profession is an inherently difficult, dangerous and stressful profession. The paramedic is constantly barraged with acute stressors during the performance of his duties. These stressors have predictable, documented, negative effects on performance. The acute and chronic exposure to stress can negatively impact the safety and the well being of the paramedic. These stressors, if not successfully managed, can also result in negative effects to patients. Despite the overwhelming presence of stress in the paramedic environment, most paramedics receive little or no training to successfully perform under stress. One exception was a program called Trauma Lanes that was held …