{
  "ptid_time": "137_S_4299_2012-05-17",
  "img_path": "/data/qiuhui/data/adni/images/137_S_4299/2012-05-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,438 mm³, 86.8% above the reference mean. With a Z-score of 1.99 (97.7th percentile), this represents moderate enlargement; hippocampal volume measures 6,702 mm³, 5.8% below the reference mean. With a Z-score of -0.53 (29.7th percentile), this represents normal volume ; whole brain volume measures 969,929 mm³, 0.5% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume . ",
  "text_data": "Age is 77.3 years. Gender is Female. Education: 12 years. MMSE: 27.0. MoCA: 20.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is moderately enlarged (86.8% above the mean, Z-score 1.99), which is suggestive of atrophy, while hippocampal and whole brain volumes are within normal ranges. The MMSE score of 27 is normal, but the MoCA score of 20 indicates mild cognitive impairment (MCI), particularly given the age of 77.3. The absence of APOE4 reduces but does not eliminate Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:29:24.334843"
}