{
  "ptid_time": "027_S_0116_2009-02-23",
  "img_path": "/data/qiuhui/data/adni/images/027_S_0116/2009-02-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,610 mm³, 26.4% below the reference mean. With a Z-score of -0.77 (22.2th percentile), this represents normal volume ; whole brain volume measures 901,061 mm³, 12.4% below the reference mean. With a Z-score of -1.63 (5.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 81.4 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.63, 5.1th percentile) but has normal ventricular volume and a perfect MMSE score of 30. The absence of APOE4 alleles and intact cognitive performance suggest no significant impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to the discrepancy between structural atrophy and preserved cognition, though common in aging)",
  "timestamp": "2025-07-26T03:27:51.625123"
}