{
  "ptid_time": "033_S_1279_2008-09-03",
  "img_path": "/data/qiuhui/data/adni/images/033_S_1279/2008-09-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,046 mm³, 32.6% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; hippocampal volume measures 5,644 mm³, 26.6% below the reference mean. With a Z-score of -2.98 (0.1th percentile), this represents significant atrophy; whole brain volume measures 997,665 mm³, 3.1% below the reference mean. With a Z-score of -0.38 (35.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,482 mm³, 10.6% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,225 mm³, 10.9% below the reference mean. With a Z-score of -1.23 (11.0th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,743 mm³, 6.0% above the reference mean. With a Z-score of 0.53 (70.2th percentile), this represents normal volume . ",
  "text_data": "Age is 69.8 years. Gender is Female. Education: 16 years. MMSE: 25.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.98, 0.1th percentile), which is strongly associated with Alzheimer's disease, while other regions are mostly normal or mildly affected. The MMSE score of 25 suggests mild cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: MCI (likely due to Alzheimer's pathology)  \nConfidence: Medium",
  "timestamp": "2025-07-26T05:31:30.153370"
}