{
  "ptid_time": "099_S_4104_2013-07-25",
  "img_path": "/data/qiuhui/data/adni/images/099_S_4104/2013-07-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,291 mm³, 26.6% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; hippocampal volume measures 6,734 mm³, 10.9% below the reference mean. With a Z-score of -1.06 (14.3th percentile), this represents mild atrophy; whole brain volume measures 1,009,970 mm³, 6.4% below the reference mean. With a Z-score of -0.83 (20.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,682 mm³, 10.2% below the reference mean. With a Z-score of -0.69 (24.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,431 mm³, 7.5% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,651 mm³, 3.2% below the reference mean. With a Z-score of -0.29 (38.6th percentile), this represents normal volume . ",
  "text_data": "Age is 74.4 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows mild atrophy (Z-score -1.06, 14.3rd percentile), while other brain regions are within normal ranges. Cognitive scores (MMSE 29, MoCA 25) are borderline for MCI but not strongly indicative of dementia. No APOE4 risk allele is present.  \nDiagnosis: **MCI** (Mild Cognitive Impairment)  \nConfidence: **Medium** (Hippocampal atrophy suggests early neurodegeneration, but cognitive scores are not severely impaired and other regions are preserved.)",
  "timestamp": "2025-07-26T11:06:16.529141"
}