{
  "ptid_time": "130_S_1200_2010-02-07",
  "img_path": "/data/qiuhui/data/adni/images/130_S_1200/2010-02-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 64,607 mm³, 37.4% above the reference mean. With a Z-score of 1.09 (86.1th percentile), this represents mild enlargement; whole brain volume measures 1,121,480 mm³, 9.0% above the reference mean. With a Z-score of 1.18 (88.0th percentile), this represents mild enlargement. ",
  "text_data": "Age is 87.4 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1257.00 pg/mL (normal ); Total tau: 161.10 pg/mL (mild reduced); Phosphorylated tau: 16.34 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (37.4% above reference mean), but whole brain volume is also slightly above average (9.0% above reference mean). MMSE is normal (28/30), Aβ is normal, and APOE4 is negative, with no significant tauopathy.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (mild ventricular enlargement could be age-related, but no clear biomarkers or cognitive deficits suggest pathology)",
  "timestamp": "2025-07-26T14:34:35.042343"
}