{
  "ptid_time": "067_S_0110_2007-03-06",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0110/2007-03-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 71,586 mm³, 93.7% above the reference mean. With a Z-score of 2.53 (99.4th percentile), this represents significant enlargement; hippocampal volume measures 4,321 mm³, 33.5% below the reference mean. With a Z-score of -2.68 (0.4th percentile), this represents significant atrophy; whole brain volume measures 997,543 mm³, 7.5% above the reference mean. With a Z-score of 0.90 (81.5th percentile), this represents normal volume ; entorhinal cortex volume measures 2,431 mm³, 29.8% below the reference mean. With a Z-score of -1.61 (5.4th percentile), this represents moderate atrophy; fusiform gyrus volume measures 16,805 mm³, 4.3% above the reference mean. With a Z-score of 0.32 (62.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 15,756 mm³, 12.6% below the reference mean. With a Z-score of -1.12 (13.1th percentile), this represents mild atrophy. ",
  "text_data": "Age is 83.6 years. Gender is Female. Education: 10 years. MMSE: 23.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant hippocampal and entorhinal cortex atrophy, which are hallmark features of Alzheimer's disease, alongside ventricular enlargement (a marker of neurodegeneration). The MMSE score of 23 suggests mild cognitive impairment, but the severe atrophy in memory-critical regions leans toward dementia.  \nDiagnosis: Dementia  \nConfidence: High",
  "timestamp": "2025-07-26T08:25:57.481332"
}