{
  "ptid_time": "035_S_0555_2007-05-24",
  "img_path": "/data/qiuhui/data/adni/images/035_S_0555/2007-05-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 73,105 mm³, 89.8% above the reference mean. With a Z-score of 2.15 (98.4th percentile), this represents significant enlargement; whole brain volume measures 1,170,050 mm³, 8.4% above the reference mean. With a Z-score of 1.09 (86.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 77.5 years. Gender is Male. Education: 16 years. MMSE: 30.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (Z-score 2.15, 98.4th percentile), which is often associated with neurodegeneration, but the whole brain volume is mildly enlarged (Z-score 1.09, 86.2nd percentile). The MMSE score of 30 is normal, and the presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting imaging findings despite normal cognition)",
  "timestamp": "2025-07-26T05:47:42.191050"
}