{
  "ptid_time": "141_S_0697_2006-08-21",
  "img_path": "/data/qiuhui/data/adni/images/141_S_0697/2006-08-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 59,530 mm³, 26.6% above the reference mean. With a Z-score of 0.77 (78.0th percentile), this represents normal volume ; whole brain volume measures 945,561 mm³, 8.1% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 86.8 years. Gender is Male. Education: 17 years. MMSE: 26.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 385.30 pg/mL (moderate reduced); Total tau: 305.70 pg/mL (normal ); Phosphorylated tau: 31.25 pg/mL (mild elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows mild whole brain atrophy (Z-score -1.06) with moderately reduced Aβ and mildly elevated P-tau, suggesting early neurodegenerative changes. However, MMSE is within normal limits (26/30), and ventricular volume is normal, making dementia less likely at this stage.  \n\n**Diagnosis:** **MCI (Mild Cognitive Impairment)**  \n**Confidence:** **Medium** (Biomarkers suggest neurodegeneration, but cognitive function is still relatively preserved.)",
  "timestamp": "2025-07-26T16:46:37.211762"
}