This paper proposes to use the analogy between a scanning laser beam and a camera. Thereby, a degenerate stereoscopic system can be defined by such a virtual camera and a real camera observing the laser spot on the tissues. Using the associated epipolar geometry, a control law is derived without any matrix inversion nor estimation of the 3D scene. This control law shows exponential convergence ...

The growing demand for complex and minimally invasive surgical interventions is driving the search for ways to use computer-based information technology as a link between the pre-operative plan and the tools utilized by the surgeon. Computers, used in conjunction with advanced surgical assist devices, will fundamentally alter the way that are procedures are carried out in 21st Century operating...

Background Over the last three decades, surgical practice has undergone a significant change with a move towards minimally invasive surgery (MIS) as the standard of care [1]. Although this has brought with it significant benefits, problems have also been associated with the advent of MIS. Perhaps the most substantial limitation associated with MIS is the loss of haptic feedback; this deficit is...

While clinical neurosurgery has benefited from the advent of frameless image guidance for over three decades, the translation of image guided technologies to abdominal surgery, and more specifically liver resection, has been far more limited. Fundamentally, the workflow, complexity, and presentation have confounded development. With the first real efforts in translation beginning at the turn of...

Pre-operative imaging techniques are essential for tumor detection and diagnosis, but offer limited help during surgery. Recently, the applicability of imaging during oncologic surgery has been recognized, using near-infrared fluorescent dyes conjugated to targeting antibodies, peptides, or other vehicles. Image-guided oncologic surgery (IGOS) assists the surgeFon to distinguish tumor from norm...

PURPOSE OF REVIEW Use of image-guided surgery (IGS) systems in otolaryngology, particularly rhinology, has grown exponentially in recent years. Central to their use is the understanding of the accuracy of each system. The purpose of this review is to discuss the error inherent in all IGS systems. A standardized technique (currently used in the engineering literature) for understanding and repor...

The ever-mounting pressure on surgeons to improve efficacy, safety and financial outcomes of their work, has driven them, and the industry, to seek ways for enhancing operative precision. We certainly need to delineate, beyond doubt, lesions that are supposed to be completely removed, as well as structures that ought to be preserved. One way to achieve this goal is to augment visualization at s...

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...

In this era of COVID-19, suspected breast cancer patients experience delay in diagnosis due to the fear contracting virus and reduction non-COVID-19 health services. Furthermore, it may lead potential increase incidence advanced cancers future. Ultrasound-guided (US-guided) percutaneous core needle biopsy (CNB) is a great option for but poorly utilized. This study aimed prove that US-guided CNB...