{
  "ptid_time": "067_S_0290_2009-05-06",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0290/2009-05-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 70,015 mm³, 81.8% above the reference mean. With a Z-score of 1.96 (97.5th percentile), this represents moderate enlargement; whole brain volume measures 1,070,090 mm³, 0.9% below the reference mean. With a Z-score of -0.11 (45.5th percentile), this represents normal volume . ",
  "text_data": "Age is 78.2 years. Gender is Male. Education: 16 years. MMSE: 26.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (81.8% above the reference mean), which is often associated with brain atrophy, while whole brain volume remains within normal limits. The MMSE score of 26 is borderline, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: **MCI** (Mild Cognitive Impairment)  \nConfidence: **Medium** (Ventricular enlargement and borderline MMSE suggest cognitive decline, but further clinical correlation is needed to confirm progression to dementia.)",
  "timestamp": "2025-07-26T08:29:38.430982"
}