{
  "ptid_time": "027_S_5197_2013-06-09",
  "img_path": "/data/qiuhui/data/adni/images/027_S_5197/2013-06-09/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,948 mm³, 16.4% below the reference mean. With a Z-score of -1.50 (6.6th percentile), this represents moderate atrophy; whole brain volume measures 810,154 mm³, 16.9% below the reference mean. With a Z-score of -2.12 (1.7th percentile), this represents significant atrophy. ",
  "text_data": "Age is 78.9 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Allergies or Drug Sensitivities. MMSE: 30.0. MoCA: 24.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.16 SUVR (normal ); Amyloid beta: 1142.00 pg/mL (normal ); Total tau: 151.00 pg/mL (mild reduced); Phosphorylated tau: 13.05 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows significant whole brain and moderate hippocampal atrophy, but cognitive testing (MMSE 30, MoCA 24) is borderline normal/mildly impaired. Biomarkers (Aβ normal, tau reduced) do not support Alzheimer's pathology.  \nDiagnosis: MCI (likely non-AD etiology)  \nConfidence: Medium (atrophy is concerning, but biomarkers and cognitive scores are atypical for AD)",
  "timestamp": "2025-07-26T04:11:20.283800"
}