11133
METHODS AND RESULTS : We prospectively compared the automated measurements of left ventricular ejection fraction ( LVEF ) and volumes from rest - injected gated Technetium 99m ( Tc99m ) perfusion SPECT with equilibrium radionuclide angiocardiography ( ERNA ) in 62 patients and the assessment of regional function with echocardiography in 22 patients .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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