{
  "ptid_time": "116_S_4635_2013-04-25",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4635/2013-04-25/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,638 mm³, 7.4% above the reference mean. With a Z-score of 0.67 (75.0th percentile), this represents normal volume ; whole brain volume measures 1,159,440 mm³, 19.0% above the reference mean. With a Z-score of 2.39 (99.2th percentile), this represents significant enlargement. ",
  "text_data": "Age is 73.7 years. Gender is Female. Education: 12 years. MMSE: 29.0. MoCA: 24.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is within the normal range (75th percentile), and whole brain volume is significantly enlarged (99.2nd percentile). Cognitive scores (MMSE 29, MoCA 24) are borderline for MCI but still within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate dementia at this stage.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (MoCA is slightly low, but structural imaging does not suggest neurodegeneration)",
  "timestamp": "2025-07-26T12:13:28.708554"
}