{
  "ptid_time": "029_S_1384_2007-10-04",
  "img_path": "/data/qiuhui/data/adni/images/029_S_1384/2007-10-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 62,585 mm³, 62.5% above the reference mean. With a Z-score of 1.50 (93.3th percentile), this represents mild enlargement; whole brain volume measures 1,064,230 mm³, 1.4% below the reference mean. With a Z-score of -0.18 (42.8th percentile), this represents normal volume . ",
  "text_data": "Age is 72.5 years. Gender is Male. Education: 16 years. MMSE: 27.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (62.5% above mean, Z-score 1.50), suggesting possible atrophy, while whole brain volume is normal (Z-score -0.18). The MMSE score of 27 is within normal limits, but the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: **MCI** (mild cognitive impairment, given structural changes but preserved cognitive function)  \nConfidence: **Medium** (imaging suggests early neurodegeneration, but MMSE is normal; APOE4 status adds risk but not definitive diagnosis).",
  "timestamp": "2025-07-26T04:24:33.887707"
}