{
  "ptid_time": "082_S_4428_2012-06-25",
  "img_path": "/data/qiuhui/data/adni/images/082_S_4428/2012-06-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,903 mm³, 25.0% below the reference mean. With a Z-score of -0.60 (27.5th percentile), this represents normal volume ; whole brain volume measures 1,154,930 mm³, 7.0% above the reference mean. With a Z-score of 0.91 (81.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,882 mm³, 5.3% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; fusiform gyrus volume measures 22,568 mm³, 19.8% above the reference mean. With a Z-score of 1.69 (95.4th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 22,777 mm³, 6.7% above the reference mean. With a Z-score of 0.61 (72.8th percentile), this represents normal volume . ",
  "text_data": "Age is 73.1 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only the fusiform gyrus showing moderate enlargement (not typically associated with neurodegeneration). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele. No structural or clinical evidence of impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:07:32.870934"
}