{
  "ptid_time": "130_S_0783_2007-08-27",
  "img_path": "/data/qiuhui/data/adni/images/130_S_0783/2007-08-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,522 mm³, 12.3% above the reference mean. With a Z-score of 0.33 (63.0th percentile), this represents normal volume ; whole brain volume measures 959,347 mm³, 3.4% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume . ",
  "text_data": "Age is 80.2 years. Gender is Female. Education: 18 years. MMSE: 29.0. Logical Memory: 2.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 620.10 pg/mL (mild reduced); Total tau: 249.10 pg/mL (normal ); Phosphorylated tau: 22.62 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular and whole brain volumes are within normal ranges, and the MMSE score of 29 indicates intact cognitive function. While Aβ is mildly reduced, tau markers (T-tau and P-tau) are normal, suggesting no significant Alzheimer's pathology at this stage.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mildly reduced Aβ, but no other strong indicators of pathology)",
  "timestamp": "2025-07-26T14:31:09.857832"
}