{
  "ptid_time": "023_S_0031_2008-12-02",
  "img_path": "/data/qiuhui/data/adni/images/023_S_0031/2008-12-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,691 mm³, 22.4% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; hippocampal volume measures 6,569 mm³, 1.1% above the reference mean. With a Z-score of 0.09 (53.6th percentile), this represents normal volume ; whole brain volume measures 888,870 mm³, 4.2% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; entorhinal cortex volume measures 2,982 mm³, 13.9% below the reference mean. With a Z-score of -0.75 (22.7th percentile), this represents normal volume ; fusiform gyrus volume measures 13,206 mm³, 18.0% below the reference mean. With a Z-score of -1.35 (8.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,810 mm³, 9.9% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.7 years. Gender is Female. Education: 18 years. MMSE: 29.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild atrophy noted in the fusiform gyrus. The MMSE score of 29 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant hippocampal or entorhinal cortex atrophy is present, which are typically associated with Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T02:27:00.760507"
}