{
  "ptid_time": "099_S_2063_2013-11-13",
  "img_path": "/data/qiuhui/data/adni/images/099_S_2063/2013-11-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,956 mm³, 14.1% above the reference mean. With a Z-score of 0.34 (63.2th percentile), this represents normal volume ; hippocampal volume measures 8,806 mm³, 16.5% above the reference mean. With a Z-score of 1.61 (94.6th percentile), this represents moderate enlargement; whole brain volume measures 1,183,830 mm³, 9.7% above the reference mean. With a Z-score of 1.26 (89.5th percentile), this represents mild enlargement. ",
  "text_data": "Age is 71.3 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes (ventricular, hippocampal, and whole brain) are all above the reference mean, with hippocampal and whole brain volumes showing mild to moderate enlargement. The MMSE score of 30 is normal, and the MoCA score of 26 is slightly below the typical cutoff of 26/30 but still within the normal range for age. APOE4 carrier status increases Alzheimer's risk but does not confirm pathology.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (MoCA is borderline, but structural imaging and MMSE support normal cognition)",
  "timestamp": "2025-07-26T11:02:26.377561"
}