{
  "ptid_time": "116_S_0752_2009-09-03",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0752/2009-09-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,381 mm³, 33.6% above the reference mean. With a Z-score of 0.91 (81.8th percentile), this represents normal volume ; whole brain volume measures 913,259 mm³, 1.6% below the reference mean. With a Z-score of -0.19 (42.3th percentile), this represents normal volume . ",
  "text_data": "Age is 85.0 years. Gender is Female. Education: 16 years. Handedness: Unknown. Race: Unknown. MMSE: 21.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is slightly elevated but still within normal range, while whole brain volume is minimally reduced but also within normal limits. The MMSE score of 21 suggests cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer's type)  \nConfidence: Medium (MMSE supports dementia, but structural changes are mild for age)",
  "timestamp": "2025-07-26T11:58:13.247612"
}