Comparison between four-slice computed tomography and coronary angiography for the assessment of coronary stents.

Autor:	Mazzarotto P; U O Cardiologia invasiva e interventistica endovascolare, Ospedale S Carlo-I D I, Rome, Italy. p.mazzarotto@idi.it, Di Renzi P, Paluello GM, Carunchio A, Ricci R, Molisso A, Ceci V, Indolfi C
Jazyk:	angličtina
Zdroj:	Journal of cardiovascular medicine (Hagerstown, Md.) [J Cardiovasc Med (Hagerstown)] 2006 May; Vol. 7 (5), pp. 328-34.
DOI:	10.2459/01.JCM.0000223254.24309.b3
Abstrakt:	Background: The present study aimed to evaluate the diagnostic accuracy of four-slice computed tomography for the detection, localization and patency assessment of metal coronary stents in a general population referred for coronary angiography late after coronary angioplasty. Methods: Twenty-four consecutive patients with 34 coronary stents underwent multislice computed tomography within 24 h before a clinically driven coronary angiography performed 245 +/- 92 days after coronary stent implantation. For each patient, two independent operators were asked to evaluate the overall number of stents, the treated coronary vessels and segments, the presence of side-branches in the stented segment, the vessel patency, and the presence of binary in-stent restenosis. Results: Four-slice computed tomography was feasible in 23 out of 24 patients (96%). Diagnostic accuracy was 94% for stent detection, 96% for the recognition of the stented coronary vessel and 97% for the identification of the stented segment. Accuracy in detection of side-branches in the stented segment, vessel patency and in-stent restenosis was 86%, 88% and 50%, respectively. Conclusions: Four-slice computed tomography is accurate in the identification of the stented coronary vessel and segment. By contrast, accuracy is low in the detection of vessel patency and in-stent restenosis. Such a technique does not appear to be useful as a screening tool before invasive diagnostic procedures.
Databáze:	MEDLINE
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