{
  "ptid_time": "941_S_1195_2014-04-15",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1195/2014-04-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,146 mm³, 4.5% above the reference mean. With a Z-score of 0.13 (55.2th percentile), this represents normal volume ; hippocampal volume measures 6,225 mm³, 10.7% below the reference mean. With a Z-score of -0.92 (17.8th percentile), this represents normal volume ; whole brain volume measures 1,015,210 mm³, 1.4% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume . ",
  "text_data": "Age is 83.9 years. Gender is Male. Education: 20 years. MMSE: 28.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, with only mild deviations from the reference mean. Cognitive test scores (MMSE and MoCA) are both 28, indicating no significant cognitive impairment. The absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:27:05.198750"
}