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Titolo:
A novel quantitative method for evaluating diffuse in-stent narrowing at follow-up angiography
Autore:
Ishii, Y; van Weert, AWM; Hekking, E; de Marie, K; ter Horst, J; Oemrawsingh, PV; Reiber, JHC;
Indirizzi:
Leiden Univ, Med Ctr, Dept Radiol, NL-2300 RC Leiden, Netherlands Leiden Univ Leiden Netherlands NL-2300 RC NL-2300 RC Leiden, Netherlands Heart Core BV, Leiden, Netherlands Heart Core BV Leiden NetherlandsHeart Core BV, Leiden, Netherlands Leiden Univ, Med Ctr, Dept Cardiol, Leiden, Netherlands Leiden Univ Leiden Netherlands d Ctr, Dept Cardiol, Leiden, Netherlands
Titolo Testata:
CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS
fascicolo: 3, volume: 54, anno: 2001,
pagine: 309 - 317
SICI:
1522-1946(200111)54:3<309:ANQMFE>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
REPEAT PERCUTANEOUS INTERVENTION; BALLOON ANGIOPLASTY; INTRAVASCULAR ULTRASOUND; ROTATIONAL ATHERECTOMY; RECURRENT RESTENOSIS; CORONARY STENTS; IMMEDIATE; DEPLOYMENT; MECHANISMS;
Keywords:
stents; restenosis; angiography; lesion; QCA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Reiber, JHC Leiden Univ, Med Ctr, Dept Radiol, C2-S,Albinusdreef 2,POB 9600, NL-2300 RC Leiden, Netherlands Leiden Univ C2-S,Albinusdreef 2,POB 9600 Leiden Netherlands NL-2300 RC
Citazione:
Y. Ishii et al., "A novel quantitative method for evaluating diffuse in-stent narrowing at follow-up angiography", CATHET C IN, 54(3), 2001, pp. 309-317

Abstract

A new quantitative parameter, diffuse index (DI), was proposed to evaluateobjectively whether in-stent restenosis is diffuse or focal in nature. A total of 343 patients (346 lesions) with Wiktor-GX, AVE MS-II, or JOMED stents were evaluated at follow-up angiography. According to the OCA-CMS definition, lesion length is derived from the 100% reference diameter function (RDF). By moving the RDF downward, the lesion length, LL(x), at each percentage x of the RDF can be calculated. We have defined the DI by the ratio of this calculated length LL(x) and the total stent length, SL, in other words,DI = [LL(x)/SL]. The percentage plaque area (% PA) was calculated by dividing the plaque area by the sum of the plaque area and luminal area within the stent. An excellent correlation was found between the DI at 88% RDF and the % PA in all three stents (r > 0.88). The individual correlation curves were nearly identical, independent of the type of stent. Furthermore, basedon the overall data, the combination of a DI > 0.8 and % PA > 30% correlated with a high incidence of subsequent major adverse cardiac events (13/25 = 52%). From these data, it can be concluded that the diffuse index is a new objective quantitative parameter to describe whether in-stent restenosis is of focal or diffuse nature. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:55:40