{
  "ptid_time": "031_S_0830_2009-09-21",
  "img_path": "/data/qiuhui/data/adni/images/031_S_0830/2009-09-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,815 mm³, 8.6% above the reference mean. With a Z-score of 0.21 (58.1th percentile), this represents normal volume ; whole brain volume measures 978,231 mm³, 9.4% below the reference mean. With a Z-score of -1.22 (11.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 73.8 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 6.0. 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 -1.22, 11.2th percentile). Despite this, the MMSE score of 28 is within the normal range, and the presence of one APOE4 allele alone is not diagnostic.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T04:38:34.230246"
}