{
  "ptid_time": "116_S_0834_2007-04-26",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0834/2007-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 61,924 mm³, 106.2% above the reference mean. With a Z-score of 2.52 (99.4th percentile), this represents significant enlargement; whole brain volume measures 1,116,480 mm³, 1.6% below the reference mean. With a Z-score of -0.23 (41.1th percentile), this represents normal volume . ",
  "text_data": "Age is 64.4 years. Gender is Male. Education: 13 years. MMSE: 22.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The significant ventricular enlargement (Z-score 2.52) suggests substantial brain atrophy, which is concerning for neurodegeneration. The MMSE score of 22 indicates cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \n\n**Diagnosis:** **Dementia** (likely Alzheimer’s disease given atrophy pattern and APOE4 status)  \n**Confidence:** **High** (due to clear structural and cognitive deficits)",
  "timestamp": "2025-07-26T11:58:43.986958"
}