Quantitative detection of myocardial ischaemia by stress echocardiography; a comparison with SPECT.

Aims: Real-time perfusion (RTP) adenosine stress echocardiography (ASE) can be used to visually evaluate myocardial ischaemia. The RTP power modulation technique angio-mode (AM), provides images for off-line perfusion quantification using Qontrast software, generating values of peak signal intensity (A), myocardial blood flow velocity (beta) and myocardial blood flow (Axbeta). By comparing rest and stress values, their respective reserve values (A-r, beta-r, Axbeta-r) are generated.

Head to head comparisons of two modalities of perfusion adenosine stress echocardiography with simultaneous SPECT.

Background: Real-time perfusion (RTP) contrast echocardiography can be used during adenosine stress echocardiography (ASE) to evaluate myocardial ischemia. We compared two different types of RTP power modulation techniques, angiomode (AM) and high-resolution grayscale (HR), with 99mTc-tetrofosmin single-photon emission computed tomography (SPECT) for the detection of myocardial ischemia.

Methods: Patients with known or suspected coronary artery disease (CAD), admitted to SPECT, were prospectively invited to participate.

Hospitalization and Health Care Costs Due to Congestive Heart Failure in the Elderly.

The objective of this study is to describe the occurrence of readmissions due to congestive heart failure (CHF) in an elderly population and to give insight into the costs associated with readmissions. Two hundred and seven patients ages 65-84, hospitalized due to CHF, were included in the analysis. Seventy-six patients (37%) were readmitted due to CHF within 1 year including 32 (16 %) readmitted within 30 days.