{
  "ptid_time": "129_S_4396_2013-12-10",
  "img_path": "/data/qiuhui/data/adni/images/129_S_4396/2013-12-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,465 mm³, 33.8% below the reference mean. With a Z-score of -0.91 (18.1th percentile), this represents normal volume ; hippocampal volume measures 6,455 mm³, 0.6% below the reference mean. With a Z-score of -0.05 (48.0th percentile), this represents normal volume ; whole brain volume measures 868,383 mm³, 6.4% below the reference mean. With a Z-score of -0.77 (22.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.4 years. Gender is Female. Education: 12 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.95 SUVR (mild reduced). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, and whole brain) are within normal ranges, and cognitive test scores (MMSE 29, MoCA 28) are intact. No significant atrophy or biomarker abnormalities (APOE4 negative, mild AV45 reduction) suggest active pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:16:57.147252"
}