Posts Tagged ‘ischemic risk’ - Part 2

Exercise Body Surface Potential Mapping in Single and Multiple Coronary Artery Disease: Results (3)The group mean 5-min recovery maps and the recovery minus rest subtraction maps confirmed that, on average, substantial ST integral ischemic changes persisted, although significantly […]

The group mean ST isointegral maps of the four CAD groups and the control subjects are illustrated in Figure 4. As can be seen, the spatial changes in ST patterns from rest to peak exercise were similar in all four patient groups, namely the development of absolute negative ST integral values over the left lateral chest, with minima located over the precordium (Fig 4). This common reduction in ST integrals, […]

Exercise Body Surface Potential Mapping in Single and Multiple Coronary Artery Disease: Results (1)BSPM
The exercise tolerance test data of the 51 CAD patients are presented in Table 2 and that of the normal control subjects in […]

Conmary Angiography In addition to standard clinical evaluation of percent luminal narrowing (Table 1), the coronary arteriograms of all study patients were assessed according to the Pujadas,” Green lane and modified Gensini scoring systems. Our modification of the Gensini system was designed to allow for the presence of effective collaterals. For example, the collateral score for an occluded left anterior descending artery was calculated as follows: reopacified and normal, 32×0.5; […]

Exercise Body Surface Potential Mapping in Single and Multiple Coronary Artery Disease: Methods (6)Thallium Scintigraphy
In all patients, 1.5 mCi of thallium was injected intravenously at peak exercise and exercise was continued for a further 1 min. […]

BSPM Analysis
The BSPM data were analyzed and displayed using a VAX 11/780 computer. The 15-s recordings at each lead were averaged using previously tested algorithms with the PR segment as baseline. In addition, editing of each analog-form averaged lead was performed; leads judged unacceptable because of noise or baseline drift were deleted and replaced by interpolated data from surrounding leads.

Exercise Body Surface Potential Mapping in Single and Multiple Coronary Artery Disease: Methods (4)BSPM Recording
We utilized previously described methods of BSPM data acquisition. Briefly, this included 117 torso and four limb electrodes of silver-silver chloride. The […]

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