{
  "ptid_time": "137_S_1414_2009-08-26",
  "img_path": "/data/qiuhui/data/adni/images/137_S_1414/2009-08-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,315 mm³, 39.5% below the reference mean. With a Z-score of -0.95 (17.2th percentile), this represents normal volume ; whole brain volume measures 1,047,630 mm³, 2.9% below the reference mean. With a Z-score of -0.38 (35.1th percentile), this represents normal volume . ",
  "text_data": "Age is 76.3 years. Gender is Male. Education: 18 years. MMSE: 28.0. Logical Memory: 4.0. APOEε4 alleles: 1.0. Biomarker levels: Pittsburgh compound B: 1.68 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 28 is well within the normal cognitive range (≥26). The presence of one APOE4 allele increases Alzheimer's risk but does not confirm impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T16:26:40.216700"
}