Enhancement of needle visibility in ultrasound-guided percutaneous procedures

S Cheung, R Rohling - Ultrasound in medicine & biology, 2004 - Elsevier
The visibility of a needle in ultrasound (US)-guided percutaneous procedures is often limited
by dispersion of the needle's reflections away from the probe. A needle enhancement …

Two-dimensional spatial compounding with warping

AR Groves, RN Rohling - Ultrasound in medicine & biology, 2004 - Elsevier
Spatial compounding aims to improve image quality through signal averaging, but speed-of-
sound (SoS) and refraction errors can misalign the component frames and blur the …

PUPIL: Programmable ultrasound platform and interface library

R Rohling, W Fung, P Lajevardi - … , November 15-18, 2003. Proceedings 6, 2003 - Springer
A new programmable ultrasound machine and software interface is described. The software
interface takes advantage of the open architecture of the new machine to provide real-time …

Statistical methods for out-of-plane ultrasound transducer motion estimation

C Laporte - 2010 - escholarship.mcgill.ca
Freehand 3D ultrasound imaging usually involves moving a conventional tracked 2D
ultrasound probe over a subject and combining the images into a volume to be interpreted …

Relationship of 2D ultrasonic spectral parameters to the physical properties of soft tissue scatterers

T Liu, FL Lizzi, JA Ketterling, P Lee… - … Imaging and Signal …, 2004 - spiedigitallibrary.org
We have conducted a general study that relates calibrated 2-D ultrasonic spectral
parameters to the physical properties of sub-resolution tissue scatterers. Our 2-D spectra are …

Real-time spatial compounding with warping

AR Groves, RN Rohling - Medical Imaging 2004: Ultrasonic …, 2004 - spiedigitallibrary.org
Spatial compound imaging via beam-steering aims to improve image quality through signal
averaging. However, compounding techniques are vulnerable to speed-of-sound and …