{
  "ptid_time": "027_S_0118_2009-02-10",
  "img_path": "/data/qiuhui/data/adni/images/027_S_0118/2009-02-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,538 mm³, 9.5% below the reference mean. With a Z-score of -0.28 (39.1th percentile), this represents normal volume ; whole brain volume measures 924,240 mm³, 10.2% below the reference mean. With a Z-score of -1.34 (9.1th percentile), this represents mild atrophy. ",
  "text_data": "Age is 83.4 years. Gender is Male. Education: 20 years. MMSE: 25.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy (Z-score -1.34, 9.1th percentile) but normal ventricular volume. The MMSE score of 25 is borderline, but no APOE4 risk allele is present. Mild atrophy and slightly reduced MMSE suggest possible cognitive decline but not severe enough for dementia.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-26T03:28:56.055381"
}