{
  "ptid_time": "137_S_0800_2007-09-12",
  "img_path": "/data/qiuhui/data/adni/images/137_S_0800/2007-09-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,690 mm³, 20.3% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume ; whole brain volume measures 977,411 mm³, 9.4% below the reference mean. With a Z-score of -1.23 (11.0th percentile), this represents mild atrophy. ",
  "text_data": "Age is 75.0 years. Gender is Male. Education: 12 years. MMSE: 28.0. Logical Memory: 3.0. APOEε4 alleles: 2.0. Biomarker levels: Pittsburgh compound B: 2.45 SUVR (significant elevated); Amyloid beta: 521.10 pg/mL (mild reduced); Total tau: 213.90 pg/mL (normal ); Phosphorylated tau: 21.19 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy but normal ventricular volume, with cognitive performance (MMSE 28) within normal range. Biomarkers indicate mild Aβ reduction but normal tau levels, suggesting early pathological changes without significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy and Aβ changes, but preserved cognition)",
  "timestamp": "2025-07-26T16:17:57.931632"
}