{
  "ptid_time": "027_S_4801_2013-07-23",
  "img_path": "/data/qiuhui/data/adni/images/027_S_4801/2013-07-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 69,387 mm³, 80.1% above the reference mean. With a Z-score of 1.92 (97.3th percentile), this represents moderate enlargement; hippocampal volume measures 5,627 mm³, 25.6% below the reference mean. With a Z-score of -2.49 (0.6th percentile), this represents significant atrophy; whole brain volume measures 1,098,020 mm³, 1.7% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume . ",
  "text_data": "Age is 78.7 years. Gender is Male. Education: 16 years. MMSE: 17.0. MoCA: 12.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant hippocampal atrophy (Z-score -2.49, 0.6th percentile) and moderate ventricular enlargement (Z-score 1.92, 97.3th percentile), both consistent with neurodegenerative changes. The cognitive scores (MMSE 17, MoCA 12) indicate severe impairment, aligning with dementia.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease given hippocampal atrophy and APOE4 homozygosity)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:57:56.978678"
}