ArticleEuropean radiology experimental2026
Optimization of PET acquisition time for thoracic lesions in
Article in European radiology experimental, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study aimed to define the minimum positron emission tomography (PET) acquisition time for chest PET/magnetic resonance imaging (MRI), providing image quality and lesion detectability comparable to a 20-min reference. MATERIALS AND
methodsIn this retrospective study, list-mode data from 101 patients undergoing chest
resultsIn 101 patients, 283 lesions were identified. Subjective scores increased from a median of 2 (interquartile range 2-2) at 0.5 min to 5 (5-5) at 7 min (p < 0.001), then plateaued (7-20 min; all p = 1.000). L_SUV
conclusionA 7-min acquisition time provided subjective quality and detectability comparable to the 20-min protocol, supporting routine use. For quantitative assessments, 3-5 min sufficed, and patients with shorter KEY POINTS: Question What is the minimum PET acquisition time for chest 18F-FDG PET/MRI that maintains image quality and lesion detectability equivalent to a 20‑min reference? Findings A 7‑min PET acquisition matches 20‑min image quality and detectability; quantitative parameters stabilize at 3‑5 min; 2 min suffices for patients with shorter uptake or larger lesions. Relevance statement Reducing PET acquisition time to 7 min enhances patient comfort, reduces motion artifacts, and increases scanner throughput without compromising chest PET/MRI diagnostic performance, thereby improving patient experience and workflow efficiency. Further clinical validation is needed.
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