{
  "ptid_time": "009_S_4958_2013-04-17",
  "img_path": "/data/qiuhui/data/adni/images/009_S_4958/2013-04-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 71,611 mm³, 85.9% above the reference mean. With a Z-score of 2.06 (98.0th percentile), this represents significant enlargement; hippocampal volume measures 6,525 mm³, 13.7% below the reference mean. With a Z-score of -1.33 (9.1th percentile), this represents mild atrophy; whole brain volume measures 1,014,190 mm³, 6.0% below the reference mean. With a Z-score of -0.78 (21.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,757 mm³, 8.4% below the reference mean. With a Z-score of -0.57 (28.5th percentile), this represents normal volume ; fusiform gyrus volume measures 16,150 mm³, 14.3% below the reference mean. With a Z-score of -1.22 (11.2th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,182 mm³, 10.1% below the reference mean. With a Z-score of -0.91 (18.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.0 years. Gender is Male. Education: 20 years. MMSE: 28.0. MoCA: 27.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant ventricular enlargement (98th percentile) and mild hippocampal atrophy (9.1th percentile), which are structural markers often associated with Alzheimer's disease. However, cognitive scores (MMSE 28, MoCA 27) are within normal ranges, suggesting no significant functional impairment.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (Structural changes are concerning, but cognitive performance remains intact, making early MCI more likely than dementia.)",
  "timestamp": "2025-07-25T22:24:59.559143"
}