{
  "ptid_time": "136_S_0873_2007-04-23",
  "img_path": "/data/qiuhui/data/adni/images/136_S_0873/2007-04-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,423 mm³, 15.5% above the reference mean. With a Z-score of 0.36 (63.9th percentile), this represents normal volume ; whole brain volume measures 857,339 mm³, 12.0% below the reference mean. With a Z-score of -1.52 (6.5th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 78.6 years. Gender is Female. Education: 14 years. MMSE: 25.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.52, 6.5th percentile) but normal ventricular volume. The MMSE score of 25 is borderline, and the presence of one APOE4 allele increases Alzheimer's risk. These findings suggest cognitive decline but not severe enough for dementia.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:03:59.603041"
}