{
  "ptid_time": "027_S_1387_2007-10-26",
  "img_path": "/data/qiuhui/data/adni/images/027_S_1387/2007-10-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 88,198 mm³, 87.6% above the reference mean. With a Z-score of 2.54 (99.5th percentile), this represents significant enlargement; whole brain volume measures 860,264 mm³, 16.4% below the reference mean. With a Z-score of -2.15 (1.6th percentile), this represents significant atrophy. ",
  "text_data": "Age is 86.1 years. Gender is Male. Education: 20 years. MMSE: 24.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The significant ventricular enlargement (Z-score 2.54) and whole brain atrophy (Z-score -2.15) indicate substantial structural brain changes. Combined with an MMSE score of 24 (borderline impaired) in an 86-year-old male with one APOE4 allele, this strongly suggests neurodegenerative pathology.  \n\nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T03:50:56.078353"
}