{
  "ptid_time": "116_S_0752_2007-08-08",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0752/2007-08-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,386 mm³, 22.8% above the reference mean. With a Z-score of 0.62 (73.1th percentile), this represents normal volume ; whole brain volume measures 923,511 mm³, 0.5% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume . ",
  "text_data": "Age is 83.0 years. Gender is Female. Education: 16 years. MMSE: 28.0. Logical Memory: 4.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 28 is within the normal cognitive range (≥26). The presence of one APOE4 allele increases Alzheimer's risk but does not confirm impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to normal imaging and MMSE, but age and APOE4 status warrant caution)",
  "timestamp": "2025-07-26T11:57:51.554420"
}