{
  "ptid_time": "007_S_0344_2010-06-17",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0344/2010-06-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,797 mm³, 40.9% below the reference mean. With a Z-score of -1.19 (11.8th percentile), this represents mild atrophy; hippocampal volume measures 4,079 mm³, 41.5% below the reference mean. With a Z-score of -3.58 (0.0th percentile), this represents profound atrophy; whole brain volume measures 962,979 mm³, 6.4% below the reference mean. With a Z-score of -0.84 (20.0th percentile), this represents normal volume ; entorhinal cortex volume measures 1,787 mm³, 55.0% below the reference mean. With a Z-score of -3.60 (0.0th percentile), this represents profound atrophy; fusiform gyrus volume measures 15,996 mm³, 11.5% below the reference mean. With a Z-score of -0.99 (16.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,152 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.7th percentile), this represents normal volume . ",
  "text_data": "Age is 82.8 years. Gender is Male. Education: 13 years. MMSE: 19.0. Logical Memory: 1.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows profound atrophy in the hippocampus and entorhinal cortex (both with Z-scores < -3.5), which are key regions affected in Alzheimer's disease. The MMSE score of 19 indicates significant cognitive impairment, and the presence of two APOE4 alleles further increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-25T21:50:10.972188"
}