{
  "ptid_time": "002_S_1261_2007-08-30",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1261/2007-08-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,754 mm³, 13.1% above the reference mean. With a Z-score of 0.30 (61.8th percentile), this represents normal volume ; whole brain volume measures 1,025,270 mm³, 5.2% above the reference mean. With a Z-score of 0.65 (74.3th percentile), this represents normal volume . ",
  "text_data": "Age is 71.6 years. Gender is Female. Education: 16 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "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 absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:12:46.764548"
}