{
  "ptid_time": "100_S_4512_2014-04-29",
  "img_path": "/data/qiuhui/data/adni/images/100_S_4512/2014-04-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,322 mm³, 52.5% below the reference mean. With a Z-score of -1.20 (11.4th percentile), this represents mild atrophy; hippocampal volume measures 6,920 mm³, 2.7% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume ; whole brain volume measures 957,265 mm³, 1.8% below the reference mean. With a Z-score of -0.22 (41.1th percentile), this represents normal volume . ",
  "text_data": "Age is 70.0 years. Gender is Female. Education: 16 years. MMSE: 25.0. MoCA: 24.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume shows mild atrophy (Z-score -1.20), but hippocampal and whole brain volumes are within normal ranges (Z-scores -0.25 and -0.22, respectively). Cognitive scores (MMSE 25, MoCA 24) are borderline but not strongly indicative of dementia, and there is no significant biomarker evidence (normal AV45, APOE4-negative).  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline cognitive scores and mild ventricular atrophy, but lack of strong biomarker or hippocampal atrophy support)",
  "timestamp": "2025-07-26T11:25:29.499967"
}