{
  "ptid_time": "168_S_6413_2020-10-06",
  "img_path": "/data/qiuhui/data/adni/images/168_S_6413/2020-10-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,047 mm³, 43.1% below the reference mean. With a Z-score of -1.16 (12.3th percentile), this represents mild atrophy; hippocampal volume measures 6,646 mm³, 2.3% above the reference mean. With a Z-score of 0.19 (57.4th percentile), this represents normal volume ; whole brain volume measures 903,118 mm³, 2.7% below the reference mean. With a Z-score of -0.32 (37.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,075 mm³, 17.7% above the reference mean. With a Z-score of 0.95 (83.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,430 mm³, 2.0% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,037 mm³, 11.0% below the reference mean. With a Z-score of -0.98 (16.3th percentile), this represents normal volume . ",
  "text_data": "Age is 80.2 years. Gender is Female. Education: 20 years. MMSE: 28.0. MoCA: 19.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.41 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The MMSE score of 28 is within the normal range, but the MoCA score of 19 suggests mild cognitive impairment (MCI). The AV45 scan shows significant amyloid burden, supporting Alzheimer's pathology. While hippocampal and most other brain volumes are normal, mild ventricular enlargement suggests some atrophy.  \nDiagnosis: MCI (likely due to Alzheimer's disease)  \nConfidence: Medium (MoCA and AV45 strongly suggest MCI/early AD, but MMSE is normal and structural atrophy is mild)",
  "timestamp": "2025-07-26T17:20:53.756018"
}