{
  "ptid_time": "031_S_0830_2007-04-03",
  "img_path": "/data/qiuhui/data/adni/images/031_S_0830/2007-04-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,617 mm³, 10.1% below the reference mean. With a Z-score of -0.24 (40.4th percentile), this represents normal volume ; whole brain volume measures 988,741 mm³, 8.4% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 71.3 years. Gender is Male. Education: 16 years. MMSE: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, but the whole brain volume shows mild atrophy (Z-score -1.09, 13.8th percentile). However, the MMSE score of 29 is normal, and there is only one APOE4 allele, which does not strongly indicate Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T04:38:09.799700"
}