{
  "ptid_time": "116_S_0648_2008-07-30",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0648/2008-07-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,580 mm³, 51.6% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy; whole brain volume measures 1,176,240 mm³, 20.7% above the reference mean. With a Z-score of 2.60 (99.5th percentile), this represents significant enlargement. ",
  "text_data": "Age is 73.5 years. Gender is Female. Education: 14 years. MMSE: 29.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy (Z-score -1.18), but whole brain volume is significantly enlarged (Z-score 2.60), which is unusual for typical neurodegenerative patterns. The MMSE score of 29 is within the normal range, and the absence of APOE4 alleles reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting imaging findings despite normal cognition)",
  "timestamp": "2025-07-26T11:55:32.645996"
}