{
  "ptid_time": "005_S_0929_2007-05-09",
  "img_path": "/data/qiuhui/data/adni/images/005_S_0929/2007-05-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,209 mm³, 0.4% above the reference mean. With a Z-score of 0.01 (50.5th percentile), this represents normal volume ; whole brain volume measures 928,013 mm³, 9.8% below the reference mean. With a Z-score of -1.29 (9.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 82.5 years. Gender is Male. Education: 14 years. MMSE: 23.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient shows mild whole brain atrophy (9.8% below reference mean, Z-score -1.29) with normal ventricular volume. The MMSE score of 23 suggests mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \n**Diagnosis:** **MCI** (Mild Cognitive Impairment)  \n**Confidence:** **Medium** (Atrophy and MMSE support MCI, but clinical correlation and further testing would help confirm progression to dementia.)",
  "timestamp": "2025-07-25T21:17:05.060997"
}