{
  "ptid_time": "941_S_6499_2018-07-17",
  "img_path": "/data/qiuhui/data/adni/images/941_S_6499/2018-07-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,794 mm³, 11.0% above the reference mean. With a Z-score of 0.28 (60.8th percentile), this represents normal volume ; whole brain volume measures 859,594 mm³, 16.5% below the reference mean. With a Z-score of -2.05 (2.0th percentile), this represents significant atrophy. ",
  "text_data": "Age is 69.5 years. Gender is Female. Education: 11 years. Handedness: Right. Race: White. MMSE: 28.0. MoCA: 19.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The patient shows significant whole brain atrophy (Z-score -2.05, 2nd percentile) but normal ventricular volume. Cognitive testing reveals a high MMSE (28/30) but a low MoCA (19/30), suggesting possible mild cognitive impairment (MCI). The absence of APOE4 reduces but does not eliminate Alzheimer’s risk.  \n\n**Diagnosis:** **MCI** (likely amnestic subtype given MoCA discrepancy with MMSE)  \n**Confidence:** **Medium** (strong atrophy supports neurodegeneration, but MMSE is unexpectedly high for dementia; clinical correlation needed).",
  "timestamp": "2025-07-26T17:48:50.899134"
}