J.A. Johnson

TL;DR: The first pulse-echo phased array B-scan sector images using a 128-element, one-dimensional (1-D) linear CMUT array is presented and preliminary investigations on the effects of crosstalk among array elements on the image quality are performed.

TL;DR: In this paper, the authors measured the precision of one component of the navigation system, namely the optical tracking system (OTS), by measuring jitter, and found that the system inaccuracies depend on the position of the dynamic reference frame with respect to the camera.

TL;DR: This paper presents a new method for image-guided surgery called image-enhanced endoscopy, which provides surgeons with the ability to see beyond visible surfaces and, thus, provides additional exposure during surgery.

TL;DR: This study experimentally demonstrates that 2-D CMUT arrays can be fabricated with high yield using silicon IC-fabrication processes, individual electrical connections can be provided using through-wafer vias, and flip-chip bonding can be used to integrate these dense 1-D arrays with electronic circuits for practical 3-D imaging applications.

TL;DR: In this paper, the pericardial space is used to perform diagnostic or therapeutic procedures in the heart treatment devices and methods for performing diagnostic and therapeutic procecdures in the region between a bodily organ and a covering of the bodily organ.