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. 2000 Mar;83(3):355–360. doi: 10.1136/heart.83.3.355

Myocardial perfusion imaging

R Gibbons 1
PMCID: PMC1729347  PMID: 10677421

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Figure 1:  .

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Cumulative survival in 5183 consecutive patients who underwent dual isotope (rest thallium-stress sestamibi) SPECT perfusion imaging as a function of the scan results. The rate of death increased significantly with worsening scan abnormalities. (Reproduced from Hachamovitch et al. Incremental prognostic value of myocardial perfusion single photon emission computed tomography for the prediction of cardiac death. Circulation 1998;97:535, with permission of the American Heart Association.)

Figure 2:  .

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Cardiac survival in patients with intermediate risk exercise ECGs, subgrouped on the basis of their findings on perfusion imaging. The three subgroups shown—patients with normal perfusion scans and normal heart size; patients with near normal scans and normal heart size; and patients with cardiac enlargement—were significantly different from one another (p < 0.001). Both of the subgroups with normal heart size had a low risk of subsequent cardiac death, with an annual cardiac mortality of less than 0.5%. (Reproduced from Gibbons et al 12 with permission of the American Heart Association.)

Figure 3:  .

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Survival of patients in the VANQWISH trial, as a function of randomisation to the invasive strategy (early coronary angiography) or the conservative strategy (selective coronary angiography using perfusion imaging). There was no significant difference in outcome comparing the two strategies. (Reproduced from Boden et al16 with the permission of the Massachusetts Medical Society.)

Figure 4:  .

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Comparison of segmental activity on a resting technetium-99m sestamibi scan with segmental activity on the redistribution image from a resting thallium-201 scan in segments with abnormal contractile function. There was a significant correlation (r = 0.78) between segmental activity on the two scans, although there was some variability. More importantly, activity in those segments with dysfunction which improved after revascularisation generally exceeded 60% of peak counts on both scans. In contrast, dysfunctional segments that did not improve following revascularisation, presumably because they were fibrotic, generally had activity at less than 60% of peak counts on both scans. (Reproduced from Udelson et al. Predicting recovery of severe regional ventricular dysfunction. Comparison of resting scintigraphy with thallium-201 and technetium-99m sestamibi. Circulation 1994;89:2552, with permission of the American Heart Association.)

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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