Table 3.
Operating Characteristics of Different Imaging Techniques for Various Applications in Patients with IHD
| APPLICATION/Technique | REFERENCE STANDARD | SENSITIVITY | SPECIFICITY |
|---|---|---|---|
| Prediction of CAD
| |||
| Dobutamine MRI-Qualitative Wall Motion (40) | >50% stenosis on angiography | 83% | 83% |
|
|
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| Dobutamine Echo-Qualitative Wall Motion (41) | >50% stenosis on angiography | 76% | 93% |
|
|
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| Dobutamine STE-Longitudinal Strain (41) | >50% stenosis on angiography | 84% | 88% |
|
| |||
| Viability/Prediction of Recovery after Revascularization
| |||
| MRI-Gadolinium Hyperenhancement (37) | Visually determined improvement in segmental contraction after revasc. | 72% | 92% |
|
|
|||
| Resting STE-Radial Strain (37) | Visually determined improvement in segmental contraction after revasc. | 70% | 85% |
|
| |||
| Prediction of Infarct Size after Acute Injury
| |||
| LVEF (43) | MRI determined infract size greater than 20% of LV mass | 80% | 55% |
|
|
|||
| STE-LV Global Strain (43) | MRI determined infarct size greater than 20% of LV mass | 90% | 86% |
|
| |||
| Prediction of LV Remodeling after Acute Injury
| |||
| STE-Longitudinal Strain (42) | Increase in LV end-diastolic volume of ≥ 15% 3 months after acute MI | 91% | 86% |