{
  "ptid_time": "023_S_4164_2012-07-05",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4164/2012-07-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,132 mm³, 4.2% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; hippocampal volume measures 7,649 mm³, 1.2% above the reference mean. With a Z-score of 0.12 (54.6th percentile), this represents normal volume ; whole brain volume measures 1,128,450 mm³, 4.5% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume . ",
  "text_data": "Age is 73.1 years. Gender is Male. Education: 12 years. MMSE: 29.0. MoCA: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, with Z-scores close to or slightly above the mean. Cognitive screening scores (MMSE 29, MoCA 27) are also within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:03:32.689062"
}