CBS 2019
CBSMD教育中心
中 文

IVUS Guidance

Abstract

Recommended Article

Intravascular Ultrasound Guidance Is Associated With Better Outcome in Patients Undergoing Unprotected Left Main Coronary Artery Stenting Compared With Angiography Guidance Alone Impact of Intravascular Ultrasound-Guided Percutaneous Coronary Intervention on Long-Term Clinical Outcomes in Patients Undergoing Complex Procedures Long-term survival in patients undergoing percutaneous interventions with or without intracoronary pressure wire guidance or intracoronary ultrasonographic imaging: a large cohort study Novel predictor of target vessel revascularization after coronary stent implantation: Intraluminal intensity of blood speckle on intravascular ultrasound Use of IVUS guided coronary stenting with drug eluting stent: a systematic review and meta-analysis of randomized controlled clinical trials and high quality observational studies Comparison of inhospital mortality, length of hospitalization, costs, and vascular complications of percutaneous coronary interventions guided by ultrasound versus angiography Long-term outcomes with use of intravascular ultrasound for the treatment of coronary bifurcation lesions Correlations between fractional flow reserve and intravascular ultrasound in patients with an ambiguous left main coronary artery stenosis
|<<... 11 12 13 14 15 16 17 18 >>|

Original Research2018 Sep;34(9):1365-1371.

JOURNAL：Int J Cardiovasc Imaging. Article Link

Intravascular ultrasound assessment of the effects of rotational atherectomy in calcified coronary artery lesions

Kim SS, Yamamoto MH, Maehara A et al. Keywords: Calcified lesions; Intravascular ultrasound; Rotational atherectomy

ABSTRACT

We sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1 mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and highest (n = 12) Calcium Index tertiles. Reverberations (multiple reflections from calcium) with a concave-shaped lumen in the post-RA IVUS were considered to represent RA-related calcium modification. Newly visible perivascular tissue through a previously solid arc of calcium in the post-stent IVUS was also evaluated. Comparing the pre and post-RA IVUS, maximum reverberation angle, and length increased significantly after RA (angle, from 45° [31, 67] to 96° [50, 148], p = 0.003; length, from 4.0 mm [2.0, 6.0] to 8.0 mm [4.0, 14.0], p = 0.005). In the post-RA IVUS, reverberations had a larger angle in the middle and highest Calcium Index tertiles (lowest, 91° [64, 133]; middle, 135° [107, 201]; highest, 150° [93, 208], p = 0.03). Post-stent newly visible perivascular tissue was more frequent in the middle and highest Calcium Index tertiles (lowest, 30.8%; middle, 69.2%; highest, 75.0%, p = 0.049). Minimum stent area was similar after calcium modification by RA irrespective of the severity of the Calcium Index (lowest, 6.7 mm2 [5.7, 8.9]; middle, 5.6 mm2 [4.9, 6.8]; highest, 6.7 mm2 [5.9, 8.2], p = 0.2). Greater calcium modification by RA occurs in severely calcified lesions with smaller lumen diameters to mitigate against stent underexpansion.

>CBS CBS 2019

> CBS 2019 REGISTRATION

> CBS 2019 PROGRAM

> CBS 2019 CALL FOR SCIENCE

> CBS 2019 SPOTLIGHTS

 CBSMD

> CBSMD WEBSITE REGISTRATION

> EDUCATION CENTER

> RECOMMANDED PAPER

> TOP 10 RESEARCH PAPER

> PRE-READING

CBS 2019 CBS 2019 FACULTY Education Resource CBSMD Scientific Library
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top