Intravascular ultrasound assessment of the effect of laser energy on the arterial wall during the treatment of femoro-popliteal lesions: a CliRpath excimer laser system to enlarge lumen openings (CELLO) registry study

AbstractThis study aims to test the hypothesis that the effect of excimer laser coronary angioplasty (ELCA) not only vaporizes thrombi and their underlying coronary plaque, it also changes their quality. We performed a series of cross-sectional analyses in 52 lesions in 51 patients before and after ELCA with integrated backscatter-intravascular ultrasound (IB-IVUS). The constituent parts of the plaque can be assessed by IB-IVUS (i.e., calcified, fibrous, lipid) according to integrated backscatter values. Minimum lumen diameter, lumen volume and vessel volume expanded after ELCA, while plaque volume did not significantly decrease. There was also a decrease of ‘lipid’ component (35.4–30.3%, P < 0.001) and an increase of IB-IVUS-derived ‘fibrous’ part (34.5–38.3%, P < 0.001). These results may help in understanding plaque change after ELCA. Excimer laser coronary angioplasty seems to contribute to the modification of coronary plaque composition in addition to debulking it.

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Reproducibility of the intravascular ultrasound assessment of stent implantation in saphenous vein grafts

The American Journal of Cardiology ◽

10.1016/s0002-9149(99)80776-0 ◽

1995 ◽

Vol 75 (17) ◽

pp. 1267-1270 ◽

Cited By ~ 31

Author(s):

Gary S. Mintz ◽

Jennifer Griffin ◽

Ya Chien Chuang ◽

Augusto D. Pichard ◽

Kenneth M. Kent ◽

...

Keyword(s):

Intravascular Ultrasound ◽

Saphenous Vein ◽

Stent Implantation ◽

Vein Grafts ◽

Saphenous Vein Grafts ◽

Ultrasound Assessment

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Excimer Laser System, Chair Component

Biomedical Safety & Standards ◽

10.1097/01.bmsas.0000334991.23821.04 ◽

2008 ◽

Vol 38 (15) ◽

pp. 116

Keyword(s):

Excimer Laser ◽

Laser System

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Preliminary results on the development of a nanosecond high-energy oscillator: regenerative-amplifier excimer laser system

10.1117/12.334459 ◽

1998 ◽

Author(s):

Olivier P. Uteza ◽

Philippe C. Delaporte ◽

Bernard L. Fontaine ◽

Marc L. Sentis ◽

Stephane Branly ◽

...

Keyword(s):

Excimer Laser ◽

Laser System ◽

High Energy ◽

Regenerative Amplifier ◽

Preliminary Results

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Quantification of plaque volume, shear stress on the endothelium, and mechanical properties of the arterial wall with intravascular ultrasound imaging

Zeitschrift für Kardiologie ◽

10.1007/s003920070108 ◽

2000 ◽

Vol 89 (14) ◽

pp. S105-S111 ◽

Cited By ~ 9

Author(s):

N. Bom ◽

C.L. de Korte ◽

J.J. Wentzel ◽

R. Krams ◽

S.G. Carlier ◽

...

Keyword(s):

Mechanical Properties ◽

Shear Stress ◽

Intravascular Ultrasound ◽

Ultrasound Imaging ◽

Arterial Wall ◽

Plaque Volume ◽

Intravascular Ultrasound Imaging

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Preparation and Properties of Superconducting thin Films by Excimer Laser Ablation

MRS Proceedings ◽

10.1557/proc-191-147 ◽

1990 ◽

Vol 191 ◽

Author(s):

Michael E. Geusic ◽

Alan F. Stewart ◽

Larry R. Pederson ◽

William J. Weber ◽

Kenneth R. Marken ◽

...

Keyword(s):

Thin Films ◽

Laser Ablation ◽

Excimer Laser ◽

Laser Energy ◽

Substrate Surface ◽

Xrd Analysis ◽

Zero Field ◽

Superconducting Transition ◽

X Ray Diffraction ◽

Excimer Laser Ablation

ABSTRACTExcimer laser ablation with an in situ heat treatment was used to prepare high quality superconducting YBa2Cu3O7−x thin films on (100)-SrTiO3 and (100)-LaAlO3 substrates. A pulsed excimer laser (XeCl; 308 nm) was used to ablate a rotating, bulk YBa2Cu3O7−x target at a laser energy density of 2–3 J/cm2. Based on four-probe dc resistance measurements, the films exhibited superconducting transition temperatures (Tc, midpoint) of 88 and 87K with 2K (90–10%) transition widths for SrTiO3 and LaAlO3, respectively. Transport critical current densities (Jc) measured at 77K were 2 × 106 and 1 × 106 A/cm2 in zero field for SrTiO3 and LaAlO3, respectively. X-ray diffraction (XRD) analysis showed the films to be highly oriented, with the c-axis perpendicular to the substrate surface.

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