Results 181 to 190 of about 13,446 (212)

Quantitative IVUS Flow Estimation

2003
Coronary flow assessment can be useful for determining the heamodynamic severity of a stenosis and evaluate the outcome of interventional therapy. We developed a method for measuring the transverse flow through the imaging plane of an intravascular ultrasound catheter.
van der Steen, Ton, Lupotti, FA, Mastik, Frits, Céspedes, EI, Carlier, SG (Stephan), Li, W (Wenguang), Serruys, PWJC (Patrick), Bom, Klaas   +7 more
openaire   +2 more sources

Intravascular ultrasound: Virtual histology IVUS, integrated backscatter IVUS, and palpography

Current Cardiovascular Imaging Reports, 2009
The concept of the vulnerable plaque is the focus of much research, although our knowledge of the histology, pathobiology, natural history, and therapy of vulnerable plaque remains incomplete. The evolving intravascular ultrasound technologies of virtual histology, integrated backscatter, and palpography have yielded complementary information to ...
Michael A. Gaglia, Daniel H. Steinberg, Neil J. Weissman   +2 more
openaire   +1 more source

Quantitative measurements in IVUS images

The International Journal of Cardiac Imaging, 1999
IntraVascular UltraSound (IVUS) is a catheter-based technique which provides real-time high resolution tomographic images of both the lumen and arterial wall of a coronary segment, this in contrast to X-ray arteriography that provides a shadow image (luminogram) of the entire lumen.
J, Dijkstra, G, Koning, J H, Reiber
openaire   +2 more sources

X-IVUS: integrated x-ray and IVUS system for the Cathlab

SPIE Proceedings, 2005
Percutaneous Transluminal Coronary Angioplasty is currently the preferred method for coronary artery disease treatment. Angiograms depict residual lumen, but lack information about plaque characteristics and exact geometry. During instrument positioning, intracoronary characterization at the current instrument location is desirable.
Barbara Martin-Leung, Kai Eck, Joerg Bredno, Til Aach   +3 more
openaire   +1 more source

Vascular tissue characterisation with IVUS elastography

Ultrasonics, 2000
Knowledge about the mechanical properties of the vessel wall and plaque is important for guiding intravascular interventional procedures and detection of plaque vulnerability. Rupture of atherosclerotic plaques is associated with acute myocardial infarction and unstable angina pectoris.
de Korte, C.L., Woutman, H.A., van der Steen, A.F.W., Pasterkamp, G., Céspedes, E.I.   +4 more
openaire   +4 more sources

CT urography: The end of IVU?

La radiologia medica, 2008
A review of the literature on the diagnostic accuracy of multidetector computed tomography urography (MDCTU) and intravenous urography (IVU) reveals a lack of comparative studies. However, the available data indicate that MDCTU has a high diagnostic accuracy. MDCTU is also preferred by patients, as it does not require bowel preparation. Full acceptance
Stacul F, ROSSI, ALEXIA, COVA, MARIA ASSUNTA   +2 more
openaire   +3 more sources

NIRS-IVUS

JACC: Cardiovascular Imaging, 2021
Ron Waksman, Rebecca Torguson
openaire   +1 more source

Approaching Artery Rigid Dynamics in IVUS

IEEE Transactions on Medical Imaging, 2009
Tissue biomechanical properties (like strain and stress) are playing an increasing role in diagnosis and long-term treatment of intravascular coronary diseases. Their assessment strongly relies on estimation of vessel wall deformation. Since intravascular ultrasound (IVUS) sequences allow visualizing vessel morphology and reflect its dynamics, this ...
Hernandez-Sabate, A, Gil, D, Fernandez-Nofrerias, E, Radeva, P, Marti, E   +4 more
openaire   +3 more sources

High Frequency IVUS

2003
A description of Intra Vascular UltraSound (IVUS) imaging is provided in this chapter. Section 1 describes and compares the solid state versus the mechanical implementation of IVUS. Section 2 describes the current performance capability attainable in the mechanical implementation.
openaire   +1 more source