{
  "ptid_time": "019_S_5012_2013-05-15",
  "img_path": "/data/qiuhui/data/adni/images/019_S_5012/2013-05-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 51,821 mm³, 34.5% above the reference mean. With a Z-score of 0.83 (79.6th percentile), this represents normal volume ; whole brain volume measures 1,024,830 mm³, 5.1% below the reference mean. With a Z-score of -0.66 (25.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,670 mm³, 10.5% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,057 mm³, 14.8% below the reference mean. With a Z-score of -1.26 (10.4th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,887 mm³, 6.8% below the reference mean. With a Z-score of -0.61 (27.0th percentile), this represents normal volume . ",
  "text_data": "Age is 76.8 years. Gender is Male. Education: 16 years. MMSE: 25.0. MoCA: 21.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in the fusiform gyrus but otherwise normal volumes in other regions. Cognitive testing (MMSE 25, MoCA 21) suggests mild cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T01:09:02.939032"
}