RT Journal Article
SR Electronic
T1 <sup>90</sup>Y PET for Qualitative and Quantitative Assessment of Residual Activity in Delivery Apparatus After Radioembolization
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 178
OP 179
DO 10.2967/jnmt.120.258251
VO 49
IS 2
A1 Kao, Yung Hsiang
A1 Corlett, Alicia
A1 Jorna, Katrina
A1 Rhodes, Alexander
A1 Sivaratnam, Dinesh
YR 2021
UL http://tech.snmjournals.org/content/49/2/178.abstract
AB Assessment of residual activity is critical for quality assurance after 90Y radioembolization. The resin microsphere manufacturer’s indirect method of estimating the residual activity is laborious and vulnerable to inaccuracies. Furthermore, the method cannot localize the exact site of residual activity. 90Y PET/CT for qualitative and quantitative assessment of residual activity has not, to our knowledge, been described. We show an example of 90Y PET/CT of residual activity in the delivery apparatus and catheters packed inside the delivery box. Focally intense residual activity was clearly localized to the stopcock junction. Residual activity was directly quantified by setting the PET volume-of-interest isocontour threshold to 1%.