{
  "ptid_time": "016_S_4688_2013-02-13",
  "img_path": "/data/qiuhui/data/adni/images/016_S_4688/2013-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,533 mm³, 33.6% below the reference mean. With a Z-score of -0.91 (18.2th percentile), this represents normal volume ; hippocampal volume measures 6,704 mm³, 3.2% above the reference mean. With a Z-score of 0.26 (60.2th percentile), this represents normal volume ; whole brain volume measures 935,249 mm³, 0.8% above the reference mean. With a Z-score of 0.09 (53.6th percentile), this represents normal volume . ",
  "text_data": "Age is 82.2 years. Gender is Female. Education: 14 years. MMSE: 29.0. MoCA: 29.0. Laboratory findings: Vitamin B12: 1192.00 (profound elevated); Serum Glucose: 137.00 (profound elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, and whole brain) are within normal ranges, and cognitive scores (MMSE and MoCA) are at the upper end of normal, indicating no significant cognitive impairment. The absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T00:29:45.712611"
}