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Effect of Silicon implant on ejection fraction by MUGA scan

Learning Objectives:
1. Illustrate unusual MUGA scan appearance of silicon defect.
2. Demonstrate effect of angle rotation on ejection fraction.

A 48 yr old female patient was recently diagnosed with cancer of the left breast. She had left mastectomy followed by silicon breast implantation. The patient had a baseline equilibrium radionuclide ventriculography (ERNV) after the breast implant surgery and before starting chemotherapy.

The images were acquired in a "standard" (LAO) view (45 degree angle to the patient's central long axis, with only minor adjustments to optimally separate the left ventricle, right ventricle and the left atrial activity from each other and to make axis of the left ventricle absolutely vertical). This view showed a photopenic defect in the middle of the left ventricle. The study was processed using automated software. The ejection fraction was 53 % (Figure 1).

Primary Authors & Institutions
Primary Author Sumina Goel, MD
Tulsa, OK
Emiliya Shelmiyeva, CNMT
st'luke /roosevelt hospital, East Brunswick, NJ
E. Gordon DePuey, MD
St. Luke's-Roosevelt Hospital, New York, NY

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