12. Magnetic Resonance Imaging (6) Panels A–D: MRI study at baseline demonstrates slight apical hypokinesis in end-systolic phase (arrows in D, C = end-diastolic phase). In A and B, short-axis delayed-enhanced MR images show multiple foci in the sub-epicardium and the midwall (arrows in A and B) and the acute ECG shows ST-elevation (arrows). At 3-months follow-up (E–H), systolic function normalized (G and H) and delayed-enhancement demonstrates resolution of inflammatory foci (E and F, identical location as in A and B) with ECG normalization (F/u).
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14. Radionuclide Imaging (7) (Fig.) Stress and rest images from single-photon emission computed tomography (SPECT) of a 52-yr-old man with recent-onset angina. Images obtained during stress show a large area of ischemia in the territory fed by the left anterior descending (LAD) artery that is absent at rest. Angiography confirmed a 95 to 99% occlusion involving the bifurcation of the LAD at the first diagonal branch. [Source: http://www.merck.com/mmpe/multimedia/Photo1sec07ch070.html?Ref=t&ItemId=Photo1sec07ch070&RefId=sec07/ch070/ch070i]
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20. EDEMA in CHF Fig A. Pulmonary Edema Fig B. Edema in Extremities Fig C. Edema in Congestive Heart Failure
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22. Cardiomegaly in CHF Fig a. Cardiomegaly Fig b. Cardiomyopathy Fig c. Cardiac Hypertrophy
23. Question 3. How is tissue fluid normally formed, and how is this changed in congestive heart failure?
24. Formation of Tissue Fluid Fig A. Normal Formation of Tissue Fluid Fig B. Fluid Retention in Congestive Heart Failure
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26. Question 4. What is the mechanism of action of thiazide diuretics, and how may they help patients with heart failure?