New approach to quantitative angiographic assessment after stent implantation

Bernhard Reimers, Carlo Di Mario, Lucia Di Francesco, Issam Moussa, Simonetta Blengino, Giovanni Martini, J. H C Reiber, Antonio Colombo

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The new generation quantitative angiographic systems apply the interpolated technique to calculate the reference diameter at the site of the stenosis by integrating measurements of the segments proximal and distal to the stenosis. After stent implantation these measurements can be misleading as the treated segment, which is frequently larger than the adjacent not stented segments, is included in the measurements. The consequence is an overestimation of the reference diameter and the residual diameter stenosis. The present study was performed to compare this conventional technique of measurement with a new method which excludes the stented segment for the calculation of the reference diameter. Fifty-two lesions treated with poorly radiopaque stents (56% Palmaz-Schatz, 28% NIR, 10% Gianturco-Roubin, 6% Wallstent) expanded at high pressure (≤16 arm) were analyzed according to the conventional and stent excluded method. After stent implantation the reference diameter was 3.39 ± 0.48 mm with conventional measurements and 3.02 ± 0.45 mm with the stent excluded method (P <0.05). The corresponding % diameter stenosis was 13 ± 9 for the conventional technique and 1 ± 13 for the stent excluded analysis (P <0.05). The new approach to quantitative coronary analysis after stenting provides higher accuracy in reference diameter calculations and allows a more appropriate matching of stented segments with adjacent normal segments.

Original languageEnglish
Pages (from-to)343-347
Number of pages5
JournalCatheterization and Cardiovascular Diagnosis
Volume40
Issue number4
DOIs
Publication statusPublished - Apr 1997

Fingerprint

Stents
Pathologic Constriction
Pressure

Keywords

  • coronary stent
  • quantitative coronary angiography
  • stent implantation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

New approach to quantitative angiographic assessment after stent implantation. / Reimers, Bernhard; Di Mario, Carlo; Di Francesco, Lucia; Moussa, Issam; Blengino, Simonetta; Martini, Giovanni; Reiber, J. H C; Colombo, Antonio.

In: Catheterization and Cardiovascular Diagnosis, Vol. 40, No. 4, 04.1997, p. 343-347.

Research output: Contribution to journalArticle

Reimers, B, Di Mario, C, Di Francesco, L, Moussa, I, Blengino, S, Martini, G, Reiber, JHC & Colombo, A 1997, 'New approach to quantitative angiographic assessment after stent implantation', Catheterization and Cardiovascular Diagnosis, vol. 40, no. 4, pp. 343-347. https://doi.org/10.1002/(SICI)1097-0304(199704)40:4<343::AID-CCD3>3.0.CO;2-9
Reimers, Bernhard ; Di Mario, Carlo ; Di Francesco, Lucia ; Moussa, Issam ; Blengino, Simonetta ; Martini, Giovanni ; Reiber, J. H C ; Colombo, Antonio. / New approach to quantitative angiographic assessment after stent implantation. In: Catheterization and Cardiovascular Diagnosis. 1997 ; Vol. 40, No. 4. pp. 343-347.
@article{18443de7b57b4a03b199e16be51c73ce,
title = "New approach to quantitative angiographic assessment after stent implantation",
abstract = "The new generation quantitative angiographic systems apply the interpolated technique to calculate the reference diameter at the site of the stenosis by integrating measurements of the segments proximal and distal to the stenosis. After stent implantation these measurements can be misleading as the treated segment, which is frequently larger than the adjacent not stented segments, is included in the measurements. The consequence is an overestimation of the reference diameter and the residual diameter stenosis. The present study was performed to compare this conventional technique of measurement with a new method which excludes the stented segment for the calculation of the reference diameter. Fifty-two lesions treated with poorly radiopaque stents (56{\%} Palmaz-Schatz, 28{\%} NIR, 10{\%} Gianturco-Roubin, 6{\%} Wallstent) expanded at high pressure (≤16 arm) were analyzed according to the conventional and stent excluded method. After stent implantation the reference diameter was 3.39 ± 0.48 mm with conventional measurements and 3.02 ± 0.45 mm with the stent excluded method (P <0.05). The corresponding {\%} diameter stenosis was 13 ± 9 for the conventional technique and 1 ± 13 for the stent excluded analysis (P <0.05). The new approach to quantitative coronary analysis after stenting provides higher accuracy in reference diameter calculations and allows a more appropriate matching of stented segments with adjacent normal segments.",
keywords = "coronary stent, quantitative coronary angiography, stent implantation",
author = "Bernhard Reimers and {Di Mario}, Carlo and {Di Francesco}, Lucia and Issam Moussa and Simonetta Blengino and Giovanni Martini and Reiber, {J. H C} and Antonio Colombo",
year = "1997",
month = "4",
doi = "10.1002/(SICI)1097-0304(199704)40:4<343::AID-CCD3>3.0.CO;2-9",
language = "English",
volume = "40",
pages = "343--347",
journal = "Catheterization and Cardiovascular Diagnosis",
issn = "0098-6569",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

TY - JOUR

T1 - New approach to quantitative angiographic assessment after stent implantation

AU - Reimers, Bernhard

AU - Di Mario, Carlo

AU - Di Francesco, Lucia

AU - Moussa, Issam

AU - Blengino, Simonetta

AU - Martini, Giovanni

AU - Reiber, J. H C

AU - Colombo, Antonio

PY - 1997/4

Y1 - 1997/4

N2 - The new generation quantitative angiographic systems apply the interpolated technique to calculate the reference diameter at the site of the stenosis by integrating measurements of the segments proximal and distal to the stenosis. After stent implantation these measurements can be misleading as the treated segment, which is frequently larger than the adjacent not stented segments, is included in the measurements. The consequence is an overestimation of the reference diameter and the residual diameter stenosis. The present study was performed to compare this conventional technique of measurement with a new method which excludes the stented segment for the calculation of the reference diameter. Fifty-two lesions treated with poorly radiopaque stents (56% Palmaz-Schatz, 28% NIR, 10% Gianturco-Roubin, 6% Wallstent) expanded at high pressure (≤16 arm) were analyzed according to the conventional and stent excluded method. After stent implantation the reference diameter was 3.39 ± 0.48 mm with conventional measurements and 3.02 ± 0.45 mm with the stent excluded method (P <0.05). The corresponding % diameter stenosis was 13 ± 9 for the conventional technique and 1 ± 13 for the stent excluded analysis (P <0.05). The new approach to quantitative coronary analysis after stenting provides higher accuracy in reference diameter calculations and allows a more appropriate matching of stented segments with adjacent normal segments.

AB - The new generation quantitative angiographic systems apply the interpolated technique to calculate the reference diameter at the site of the stenosis by integrating measurements of the segments proximal and distal to the stenosis. After stent implantation these measurements can be misleading as the treated segment, which is frequently larger than the adjacent not stented segments, is included in the measurements. The consequence is an overestimation of the reference diameter and the residual diameter stenosis. The present study was performed to compare this conventional technique of measurement with a new method which excludes the stented segment for the calculation of the reference diameter. Fifty-two lesions treated with poorly radiopaque stents (56% Palmaz-Schatz, 28% NIR, 10% Gianturco-Roubin, 6% Wallstent) expanded at high pressure (≤16 arm) were analyzed according to the conventional and stent excluded method. After stent implantation the reference diameter was 3.39 ± 0.48 mm with conventional measurements and 3.02 ± 0.45 mm with the stent excluded method (P <0.05). The corresponding % diameter stenosis was 13 ± 9 for the conventional technique and 1 ± 13 for the stent excluded analysis (P <0.05). The new approach to quantitative coronary analysis after stenting provides higher accuracy in reference diameter calculations and allows a more appropriate matching of stented segments with adjacent normal segments.

KW - coronary stent

KW - quantitative coronary angiography

KW - stent implantation

UR - http://www.scopus.com/inward/record.url?scp=0030983106&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030983106&partnerID=8YFLogxK

U2 - 10.1002/(SICI)1097-0304(199704)40:4<343::AID-CCD3>3.0.CO;2-9

DO - 10.1002/(SICI)1097-0304(199704)40:4<343::AID-CCD3>3.0.CO;2-9

M3 - Article

C2 - 9096930

AN - SCOPUS:0030983106

VL - 40

SP - 343

EP - 347

JO - Catheterization and Cardiovascular Diagnosis

JF - Catheterization and Cardiovascular Diagnosis

SN - 0098-6569

IS - 4

ER -