Adenosine-free assessment of stenosis severity

Basal stenosis resistance: another adenosine-free contender for the lesion assessment crown?

Assessment of site and severity in congenital aortic stenosis.

It has frequently been stated that congenital aortic valve stenosis cannot be distinguished with any confidence from discrete subvalvar aortic stenosis on clinical grounds, and that their separation rests on the results of hmmodynamic investigation and angiocardiography (Nadas, 1957; Ongley et al., 1958; Dotter et al., 1961; Braunwald et al., 1963; Engle and Ehlers, 1964). Our experience has le...

Assessment of Aortic Stenosis Severity by Cardiovascular Magnetic Resonance

Cardiovascular magnetic resonance (CMR) has become a valuable tool to corroborate aortic stenosis (AS) severity when echocardiography assessment is discordant. Moreover, CMR can provide useful complementary information about AS severity and hemodynamic markers. In particular, the use of advanced 4D flow CMR allows a comprehensive assessment of complex flow alterations produced by AS. This revie...

Assessment of aortic valve stenosis severity using intelligent phonocardiography.

Assessment of renal artery stenosis severity by pressure gradient measurements.

OBJECTIVES The purpose of this study was to define "significant" renal artery stenosis (i.e., a stenosis able to induce arterial hypertension). BACKGROUND The degree of renal artery stenosis that justifies an attempt at revascularization is unknown. METHODS In 15 patients, transstenotic pressure measurements were obtained before and after unilateral stenting. After stenting, graded stenoses...