{
  "ptid_time": "099_S_4475_2013-02-26",
  "img_path": "/data/qiuhui/data/adni/images/099_S_4475/2013-02-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,065 mm³, 10.7% above the reference mean. With a Z-score of 0.31 (62.2th percentile), this represents normal volume ; whole brain volume measures 947,623 mm³, 7.9% below the reference mean. With a Z-score of -1.04 (15.0th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,391 mm³, 39.8% below the reference mean. With a Z-score of -2.60 (0.5th percentile), this represents significant atrophy; fusiform gyrus volume measures 15,467 mm³, 14.4% below the reference mean. With a Z-score of -1.25 (10.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,622 mm³, 12.6% below the reference mean. With a Z-score of -1.13 (12.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 84.9 years. Gender is Male. Education: 14 years. MMSE: 23.0. MoCA: 21.0. Logical Memory: 5.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The imaging shows significant atrophy in the entorhinal cortex (Z-score -2.60, 0.5th percentile) and mild atrophy in the whole brain, fusiform gyrus, and middle temporal gyrus. Cognitive scores (MMSE 23, MoCA 21) are below normal for age, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T11:08:37.743331"
}