{
  "ptid_time": "022_S_2263_2011-01-18",
  "img_path": "/data/qiuhui/data/adni/images/022_S_2263/2011-01-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,730 mm³, 1.0% below the reference mean. With a Z-score of -0.02 (49.1th percentile), this represents normal volume ; hippocampal volume measures 7,761 mm³, 3.3% below the reference mean. With a Z-score of -0.33 (37.0th percentile), this represents normal volume ; whole brain volume measures 1,133,910 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.7th percentile), this represents normal volume . ",
  "text_data": "Age is 62.0 years. Gender is Male. Education: 16 years. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Respiratory; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Allergies or Drug Sensitivities; Smoking. MMSE: 29.0. MoCA: 28.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ); Amyloid beta: 776.90 pg/mL (normal ); Total tau: 193.20 pg/mL (normal ); Phosphorylated tau: 13.19 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, with Z-scores close to zero. Cognitive scores (MMSE 29, MoCA 28) are intact, and biomarkers (Aβ normal, T-tau normal, P-tau mildly reduced, AV45 normal) do not suggest significant pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T02:14:14.945476"
}