ArticleAnnals of nuclear medicine2026
Regional differences in
Article in Annals of nuclear medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
11 authors.
Funding
Abstract
objectiveTo investigate regional
methodsThis retrospective study included 38 consecutive participants who underwent ¹⁸F-flutemetamol PET using a high-resolution dhPET scanner (SET-5002, Shimadzu). Participants were classified as Aβ⁺ or Aβ⁻ based on cortical uptake patterns. Voxels of interest were anatomically defined using OpenMAP-T1, an MRI-based automated brain parcellation software, and merged into 33 regions for SUVR calculation. SUVRs were calculated using the Centiloid whole cerebellar VOIs as the reference region. Group comparisons were assessed using two-way repeated-measures ANOVA, followed by Mann-Whitney U tests with false discovery rate correction. Age and MMSE were compared using nonparametric tests, and gender using Fisher's exact test.
resultsThe Aβ⁺ (n = 25) and Aβ⁻ (n = 13) groups did not differ in age, gender, or MMSE. ANOVA revealed significant effects of group, VOI, and group×VOI interaction (all p < 0.001). After FDR correction, SUVRs were significantly higher in the Aβ⁺ group across widespread cortical gray matter, cerebral white matter, and subcortical structures, as well as in the choroid plexus and cerebellar gray matter (all q < 0.05). No significant differences were observed in cerebellar white matter, cerebellar peduncle, or brainstem regions.
conclusionHigh-resolution dhPET revealed significantly higher SUVRs in Aβ⁺ compared with Aβ⁻ subjects in supratentorial structures, including cerebral white matter, and in cerebellar gray matter.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.