Knowledge of the injection site and the adequacy of the injection are helpful at the time of image interpretation. Extravasation of radiopharmaceutical can result in an incomplete intravascular injection which, in turn, can lead to a false-negative interpretation of SPECT MPI. Lymphatic uptake and deposition within regional lymph nodes (usually axillary) can occur after a significant extravasation. Implanted IV ports or central venous catheters can be used for radiopharmaceutical administration and can be a source of “hot” artifacts on the final images even if well-flushed.
KeywordsCentral Venous Catheter Lymph Node Basin Regional Lymph Node Basin Nuclear Stress Test Scatter Artifact
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