{
  "ptid_time": "137_S_1414_2009-03-11",
  "img_path": "/data/qiuhui/data/adni/images/137_S_1414/2009-03-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,577 mm³, 38.8% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume ; whole brain volume measures 1,041,460 mm³, 3.5% below the reference mean. With a Z-score of -0.46 (32.4th percentile), this represents normal volume . ",
  "text_data": "Age is 75.8 years. Gender is Male. Education: 18 years. MMSE: 30.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 30 is optimal, indicating no cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not currently manifest as cognitive decline.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T16:26:32.471263"
}