{
  "ptid_time": "035_S_0048_2006-06-16",
  "img_path": "/data/qiuhui/data/adni/images/035_S_0048/2006-06-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,858 mm³, 43.3% below the reference mean. With a Z-score of -1.04 (15.0th percentile), this represents mild atrophy; whole brain volume measures 1,034,860 mm³, 4.1% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume . ",
  "text_data": "Age is 78.8 years. Gender is Male. Education: 14 years. MMSE: 28.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy (Z-score -1.04), but whole brain volume is within normal limits (Z-score -0.54). The MMSE score of 28 is normal, and while APOE4 homozygosity (2.0) increases Alzheimer's risk, there are no significant cognitive deficits.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to APOE4 risk but normal cognitive and structural findings)",
  "timestamp": "2025-07-26T05:42:35.830469"
}