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18F-FDG/PET-CT imaging findings after sternotomy.


ABSTRACT:

Background

The clinical diagnosis of deep sternal wound infection (DSWI) is supported by imaging findings including 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT). To avoid misinterpretation due to normal post-surgery inflammation we assessed normal imaging findings in non-infected patients after sternotomy.

Methods

This is a prospective cohort study including non-infectious patients with sternotomy. All patients underwent 18F-FDG-PET/CT at either 5 weeks (group 1), 12 weeks (group 2) or 52 weeks (group 3) post-surgery. 18F-FDG uptake was scored visually in five categories and assessed quantitatively.

Results

A total of 44 patients were included. Sternal mean SUVmax was 7.34 (± 1.86), 5.22 (± 2.55) and 3.20 (± 1.80) in group 1, 2 and 3, respectively (p < 0.01). Sternal mean SUVmean was 3.84 (± 1.00), 2.69 (± 1.32) and 1.71 (± 0.98) in group 1, 2 and 3 (p < 0.01). All patients in group 1 had elevated uptake whereas group 2 and 3 showed 2/15 (13%) and 11/20 (55%) patients respectively with no elevated uptake. Group 3 still showed an elevated uptake pattern in in 9/20 (45%) and in 3/9 (33%) with a high-grade diffuse uptake pattern.

Conclusion

This study shows significant lower sternal 18F-FDG at 55 weeks compared to 5 weeks post-sternotomy however elevated uptake patterns may persist.

SUBMITTER: Blomjous MSH 

PROVIDER: S-EPMC10261398 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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Publications

<sup>18</sup>F-FDG/PET-CT imaging findings after sternotomy.

Blomjous Maurits S H MSH   Mulders Ties A TA   Wahadat Ali R AR   Tanis Wilco W   Bogers Ad J J C AJJC   Roos-Hesselink Jolien W JW   Budde Ricardo P J RPJ  

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology 20221108 3


<h4>Background</h4>The clinical diagnosis of deep sternal wound infection (DSWI) is supported by imaging findings including 18F-fluorodeoxyglucose positron emission tomography/computed tomography (<sup>18</sup>F-FDG-PET/CT). To avoid misinterpretation due to normal post-surgery inflammation we assessed normal imaging findings in non-infected patients after sternotomy.<h4>Methods</h4>This is a prospective cohort study including non-infectious patients with sternotomy. All patients underwent <sup>  ...[more]

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