Abstract #0980
Detection of Pulmonary Nodules by Ultra-short TE Sequences in Oncology Patients using a PET/MR System
Nicholas Scott Burris 1 , Peder Larson 1 , Kevin M Johnson 2 , Michael D Hope 3 , Spencer Behr 3 , and Thomas A Hope 3
1
Radiology, University of California San
Francisco, San Francisco, CA, United States,
2
University
of WisconsinMadison, WI, United States,
3
University
of California San Francisco, CA, United States
Using an investigational 3T PET/MR system, 3D
ultra-short TE (UTE) and zero TE sequences (ZTE) were
used to evaluate pulmonary nodules in 5 oncology
patients undergoing clinical PET/CT, with CT considered
the gold-standard. UTE was highly sensitive for nodules
≥8mm (95%) and moderately sensitive for smaller nodules
between 4-6mm in size (71%). ZTE was less sensitive for
>8mm (51%) and nodules 4-6mm (42%). PET-avid nodules
were detected at higher rates by both sequences.
Preliminary results of UTE for pulmonary nodule
detection are promising, and UTE may offer an alterative
approach to PET/MR evaluation of oncology patients in
the future.
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