[Accuracy of the 64 multislice computed tomography in the diagnosis of coronary stent restenosis].

Autor:	Mendoza-Rodríguez V; Departamento de Tomografía Multicorte. Instituto Nacional de Cardiología y Cirugía Cardiovascular. Ciudad de La Habana, Cuba., Llerena LR, Olivares-Olivares EW, Llerena LD, López-Cabrera G, Cabrera-Rego JO, Rodríguez-Nande L, Linares-Machado R, Rodríguez-Díaz Y, Cerutti-Ortega LF
Jazyk:	Spanish; Castilian
Zdroj:	Archivos de cardiologia de Mexico [Arch Cardiol Mex] 2011 Jan-Mar; Vol. 81 (1), pp. 3-10.
Abstrakt:	Objective: To determine the accuracy of coronary angiography through 64-slice computed tomography in detecting in-stent restenosis. Method: Fifty-two patients with 76 coronary stents and suspicion of restenosis were examined. Initially, they underwent coronary angiography through 64-slice computed tomography, and subsequently invasive coronary angiography as gold standard. Diagnostic efficiency indexes were calculated. Results: In the stents of 3 mm or more of diameter, tomography sensitivity, specificity, positive and negative predictive value were 95, 98, 95 and 98% respectively, with positive likelihood ratio of 42 (CI95%, 6 to 290) and negative of 0.05 (CI95%, .01 to .35), validity of 97% and Kappa of 0.93 (CI95%, .83 to 1), (p ? 0.00001). In the stents smaller than 3 mm, the indexes of diagnostic efficiency and Kappa considerably decreased, loosing the statistical significance (p >0.05). Conclusions: Coronary angiography through 64-slice computed tomography is an accurate, non-invasive clinical technique for the detection of in-stent restenosis, especially with stents of 3 mm or more of diameter, and reliable allows identification of patients who need to undergo or not control invasive coronary angiography.
Databáze:	MEDLINE
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