Nuclear ventriculography (MUGA or RNV)

Alternative names:

cardiac blood pooling imaging; MUGA; nuclear heart scan; radionuclide ventriculography; RNV

Normal values:

Normal results indicate normal heart valve and chamber structure and function and a normal cardiac response to exercise.

What abnormal results mean:

Abnormal results may indicate a myocardial infarction, coronary artery disease, heart valve disease, or other cardiac disorders.

Additional conditions under which the test may be performed:

• atrial septal defect
• dilated cardiomyopathy
• heart failure
• idiopathic cardiomyopathy
• Lyme disease, secondary
• mitral stenosis
• peripartum cardiomyopathy
• senile cardiac amyloid
• SVC obstruction