Cardiac fibroma. Long-term fate after excision.

The accuracy precision of the stress electrocardiogram has been assessed using a meta-analysis of 147 studies that included a total of 24,074 patients [1, 2]. The mean values for the sensitivity and specificity in the 58 studies that included only patients without antecedents of myocardial infarction were 67% and 72%, respectively. As can be seen in Table 1, the results improve when patients who have ST segment depression in the basal ECG, those who are being treated with digoxin and those who have criteria of left ventricular hypertrophy are excluded. These values highlight that the conventional exercise test is an investigation that is more specific than sensitive. Fortunately its sensitivity is lower only with respect to patients with less serious coronary artery disease such as those with single vessel disease.

Diagnostic Accuracy of SPET

Myocardial perfusion defects resulting from conditions other than atherosclerosis

A rare case of right atrial myxoma in which thallium-201 gave a good delineation of the tumor was presented. In this case, the feeding arteries were seen to be highly developed on coronary arteriogram. The amount of blood containing thallium-201 supplied to the tumor through the feeding arteries was so great that the tumor was considered to be visualized by thallium-201 imaging.

A large myxoma of the right atrium demonstrated by thallium-201.

A rare case of benign cardiac fibroma causing a focal defect on Tl-201 imaging in an adult patient is presented. The abnormalities on the Tl-201 scan are correlated with other studies performed on the same patient. The usefulness of the Tl-201 myocardial perfusion scan as an early, noninvasive test in cardiac workup is stressed.

Detection of benign cardiac fibroma on thallium-201 imaging in an adult.

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Detection of benign cardiac fibroma on thallium-201 imaging in an adult.