{
  "ptid_time": "003_S_4350_2015-12-09",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4350/2015-12-09/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,775 mm³, 10.4% below the reference mean. With a Z-score of -1.01 (15.6th percentile), this represents mild atrophy. ",
  "text_data": "Age is 76.9 years. Gender is Male. Education: 13 years. MMSE: 29.0. MoCA: 30.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume shows mild atrophy (10.4% below mean, Z-score -1.01), but cognitive scores (MMSE 29, MoCA 30) are intact, and there is no APOE4 risk allele. Mild atrophy alone does not indicate significant cognitive impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (atrophy is present but not severe enough to suggest MCI/dementia given normal cognitive scores)",
  "timestamp": "2025-07-25T20:52:21.454634"
}