{
  "ptid_time": "037_S_0303_2007-04-25",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0303/2007-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,782 mm³, 28.1% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; whole brain volume measures 949,148 mm³, 7.8% below the reference mean. With a Z-score of -1.02 (15.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 85.2 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, but there is mild whole brain atrophy. The MMSE score of 29 is normal, and the presence of one APOE4 allele increases Alzheimer's risk but does not confirm impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy but normal cognitive scores)",
  "timestamp": "2025-07-26T06:25:23.400573"
}