{
  "ptid_time": "128_S_0135_2007-02-09",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0135/2007-02-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,859 mm³, 30.0% below the reference mean. With a Z-score of -0.81 (20.9th percentile), this represents normal volume ; whole brain volume measures 982,562 mm³, 5.9% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume . ",
  "text_data": "Age is 83.3 years. Gender is Female. Education: 18 years. MMSE: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.22 SUVR (mild reduced); Amyloid beta: 1583.00 pg/mL (mild elevated); Total tau: 243.50 pg/mL (normal ); Phosphorylated tau: 22.10 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and cognitive performance (MMSE: 30) is intact. Mildly elevated Aβ suggests possible early amyloid pathology, but normal tau levels and strong cognitive performance argue against significant neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mildly elevated Aβ, but no other supporting biomarkers or cognitive decline)",
  "timestamp": "2025-07-26T13:33:46.473948"
}