Article Figures & Data
Figures
- FIGURE 1.
(A) Electrocardiogram showing atrial fibrillation, inferior myocardial infarction pattern, and low QRS voltage. (B) Transthoracic echocardiogram showing severe left ventricular hypertrophy in parasternal long-axis view. (C) Speckle-tracking strain echocardiogram showing apical-sparing pattern. (D) Contrast-enhanced cardiac MRI showing diffuse gadolinium enhancement in left ventricle. (E) Parametric mapping depicting elevated native myocardial T1 at 1,260 ms and abnormal extracellular volume, at 60%. (F and G) [99mTc]Tc-pyrophosphate scintigraphy, with anterior planar view depicting grade 3 tracer uptake (F), confirmed on cardiofocal SPECT reconstruction (G). Cardiac boundaries are well depicted in short-axis, horizontal long-axis, and vertical long-axis orientations. H/CL = heart–to–contralateral-lung ratio.
- FIGURE 2.
(A) Electrocardiogram showing sinus rhythm with first-degree atrioventricular block and low QRS voltage in limb leads. (B) Transthoracic echocardiogram showing severe left ventricular hypertrophy in parasternal long-axis view. (C) Speckle-tracking strain echocardiogram showing apical-sparing pattern. (D) Contrast-enhanced cardiac MRI showing diffuse gadolinium enhancement in left ventricle. (E) Parametric mapping depicting elevated native myocardial T1 at 1,194 ms and elevated extracellular volume, at 54%. (F) [99mTc]Tc-pyrophosphate scintigraphy, with anterior planar view depicting grade 1 tracer uptake. (G) Cardiofocal SPECT reconstruction confirming lack of myocardial tracer uptake. H/CL = heart–to–contralateral-lung ratio.
- FIGURE 3.
(A) Transthoracic echocardiogram showing mild left ventricular hypertrophy in parasternal long-axis view. (B) Speckle-tracking strain echocardiogram showing apical-sparing pattern. (C) [99mTc]Tc-pyrophosphate scintigraphy, with anterior planar view depicting grade 2 tracer uptake. (D) Cardiofocal SPECT reconstruction confirming lack of myocardial tracer uptake. (E) Chest reconstruction identifying significant blood-pool activity in cardiac chambers. Arrow points out mechanical mitral valve. H/CL = heart–to–contralateral-lung ratio; LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle.
