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

Mintz, Gary S.; Griffin, Jennifer; Chuang, Ya Chien; Pichard, Augusto D.; Kent, Kenneth M.; Satler, Lowell F.; Popma, Jeffrey J.; Leon, Martin B.

doi:10.1016/s0002-9149(99)80776-0

Cited by 38 publications

(11 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Good agreement has also been reported in stent-related measurements. Mintz et al assessed the minimal stent area in saphenous vein grafts immediately after stent implantation and reported that the range of the ICC for intraobserver and interobserver variability was 0.98-0.99, 20 which was similar to the present results (ICC, 0.992-0.995). The accuracy and reproducibility of 3-D IVUS have also been validated.…”

supporting

confidence: 89%

See 1 more Smart Citation

Validity and Reliability of New Intravascular Ultrasound Analysis Software for Morphological Measurement of Coronary Artery Disease

Nakayama

Hibi

Endo

et al. 2013

Circ J

View full text Add to dashboard Cite

supporting

confidence: 89%

“…10, 20 The intersoftware variability was assessed via distinct measurements for 2 IVUS software packages by the same observer, which encompasses intraobserver variability. The SD of intersoftware variability, however, was similar to that of intraobserver comparisons.…”

Section: Study Limitationsmentioning

confidence: 99%

Validity and Reliability of New Intravascular Ultrasound Analysis Software for Morphological Measurement of Coronary Artery Disease

Nakayama

Hibi

Endo

et al. 2013

Circ J

View full text Add to dashboard Cite

“…This number was kept constant in all IVUS evaluation runs. Reproducibility of this type of IVUS measurements has been reported [19]. Automated transducer pullback length measurements have been validated [20].…”

Section: Planar Ivus Analysismentioning

confidence: 84%

Mechanism of cutting balloon angioplasty for in‐stent restenosis: An intravascular ultrasound study

Montorsi

Galli

Fabbiocchi

et al. 2002

Cathet Cardio Intervent

View full text Add to dashboard Cite

We investigated by intravascular ultrasound (IVUS) the mechanism of action of cutting balloon (CB) angioplasty in patients with in-stent restenosis. Seventy-one consecutive restenotic lesions of 66 patients were studied by quantitative coronary angiography (QCA) and IVUS before, immediately after, and, in 20 cases, at 24-hr time interval after CB. CB was selected according to 1:1 CB-to-stent ratio and inflated at 8 atm for 60-90 sec. Both IVUS planar and volumetric (Simpson's rule, 25 patients) analysis were carried out. IVUS measurements included external elastic membrane area (EEMA), stent area (SA), minimal lumen area (MLA), and restenosis area (RA). Following CB, QCA analysis showed increase of minimal lumen diameter (1.17 +/- 0.46 vs. 2.45 +/- 0.51 mm; P < 0.0001) and decrease of diameter stenosis (64% +/- 13% vs. 21% +/- 9%; P < 0.0001). IVUS measurements showed a significant increase of MLA (2.18 +/- 0.80 vs. 7.31 +/- 1.8 mm(2); P < 0.0001), SA (9.62 +/- 2.6 vs. 10.7 +/- 2.75 mm(2); P < 0.0001), and EEMA (17.27 +/- 5 vs. 18.1 +/- 5 mm(2); P < 0.0001) and a decrease of RA (7.43 +/- 2.63 vs. 3.45 +/- 1.39 mm(2); P < 0.0001). No significant change was observed in the original plaque + media area (7.65 +/- 3 vs. 7.38 +/- 2.9 mm(2); P = NS). Thus, of the total lumen enlargement (5.13 +/- 1.85 mm(2)), 23% was the result of increase in mean SA, whereas 77% was the result of a decrease in mean RA. These changes were associated with a 5% increase in EEMA. IVUS volumetric changes paralleled planar variations. Angiographic and IVUS changes were well maintained at 24 hr. CB enlarges coronary lumen mainly by in-stent tissue reduction associated with a moderate degree of additional stent expansion. Favorable QCA and IVUS acute results are maintained at 24 hr.

show abstract

“…[1][2][3] Extensive experience in our and other centres has shown that IVUS is a safe, accurate and reproducible alternative method for assessing the severity and morphology of lesions. 4,5 The types of plaques detectable by IVUS are summarized in Box 1.…”

Section: Intravascular Ultrasonographymentioning

confidence: 99%

New imaging techniques for diagnosing coronary artery disease

Escolar

Weigold

Fuisz

et al. 2006

CMAJ

View full text Add to dashboard Cite

I nvasive coronary angiography is the standard clinical means for depicting the coronary arteries and is the "gold standard" for diagnosing coronary artery disease (CAD). Since its implementation over 30 years ago, more than 2 million coronary angiograms have been made yearly in North America. Coronary angiography requires high-level technical expertise and technology, which makes it relatively expensive and limits it to a select population. Angiography also has its limitations, since only the lumen is displayed ("luminology") and the information it provides about the coronary plaque is not extensive. However, new tomographic methods for cardiovascular imaging such as intravascular ultrasonography (IVUS), coronary CT angiography and MRI can assess the atherosclerotic plaques responsible for early, "silent" CAD. In this article, we review the current and potential future clinical applications of these 3 tools for the visual detection of atherosclerotic CAD. Intravascular ultrasonographyIVUS has become a powerful complementary tool to measure and characterize coronary vessels and atherosclerotic plaques. An invasive procedure, IVUS produces images with a small ultrasound transducer mounted on a catheter similar to the standard catheters employed in coronary angioplasty. The catheter is advanced over the wire inside the coronary artery until it reaches a position distal to the segment to be studied. A series of tomographic images of the coronary artery are obtained as the catheter is slowly pulled back. Each IVUS image displays a 360°cross-sectional view of the layers of the coronary artery (intima, media and adventitia) as well as the lumen (Fig. 1A,B). Modern devices can perform 3-dimensional reconstructions online that provide information about the length, volume and reference landmarks of a plaque.Standard radiographic coronary angiography provides a single-plane "shadow" of the vascular lumen; its ability to accurately and reproducibly measure the degree of stenosis and to characterize plaque morphology is limited.1-3 Extensive experience in our and other centres has shown that IVUS is a safe, accurate and reproducible alternative method for assessing the severity and morphology of lesions.4,5 The types of plaques detectable by IVUS are summarized in Box 1. Clinical useThe best-studied clinical application of IVUS is in the placement of stents into coronary vessels (Fig. 1C,D, Fig. 2, Fig. 3). Stenting has revolutionized the treatment of atherosclerotic CAD. Restenosis inside the stent, which occurs in 5%-20% of cases (depending on the complexity of the lesion and underlying risk factors), nevertheless remains a major shortcoming. IVUS has played an important role in the understanding of stent failures.In-stent restenosis is typically caused by neointimal hyperplasia: new fibrotic tissue that grows inside the stent and obstructs the lumen. Serial IVUS studies performed in cases of bare-metal stent failure have shown that underexpansion of the stent is an important cause of early failure.6 If the stent is poorl...

show abstract

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

Cited by 38 publications

References 9 publications

Validity and Reliability of New Intravascular Ultrasound Analysis Software for Morphological Measurement of Coronary Artery Disease

Validity and Reliability of New Intravascular Ultrasound Analysis Software for Morphological Measurement of Coronary Artery Disease

Mechanism of cutting balloon angioplasty for in‐stent restenosis: An intravascular ultrasound study

New imaging techniques for diagnosing coronary artery disease

Contact Info

Product

Resources

About