{
  "ptid_time": "002_S_1155_2014-01-09",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1155/2014-01-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,189 mm³, 57.2% above the reference mean. With a Z-score of 1.36 (91.3th percentile), this represents mild enlargement; hippocampal volume measures 8,461 mm³, 5.4% above the reference mean. With a Z-score of 0.54 (70.6th percentile), this represents normal volume ; whole brain volume measures 1,134,930 mm³, 0.0% above the reference mean. With a Z-score of 0.00 (50.2th percentile), this represents normal volume . ",
  "text_data": "Age is 64.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (57.2% above mean, Z-score 1.36), but hippocampal and whole brain volumes are normal. Cognitive testing shows a perfect MMSE (30/30) but a slightly reduced MoCA (25/30), which could indicate subtle cognitive changes. No APOE4 risk allele is present.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (MoCA suggests possible impairment, but MMSE is intact and structural changes are mild.)",
  "timestamp": "2025-07-25T20:11:48.900795"
}