{
  "ptid_time": "072_S_0315_2010-04-08",
  "img_path": "/data/qiuhui/data/adni/images/072_S_0315/2010-04-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,239 mm³, 18.9% below the reference mean. With a Z-score of -0.45 (32.5th percentile), this represents normal volume ; hippocampal volume measures 8,422 mm³, 11.4% above the reference mean. With a Z-score of 1.11 (86.7th percentile), this represents mild enlargement; whole brain volume measures 1,154,320 mm³, 6.9% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,275 mm³, 4.3% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; fusiform gyrus volume measures 15,961 mm³, 15.3% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy; middle temporal gyrus volume measures 20,273 mm³, 5.0% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume . ",
  "text_data": "Age is 75.5 years. Gender is Male. Education: 16 years. MMSE: 30.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in the fusiform gyrus but otherwise normal or above-average volumes in other regions, including the hippocampus. The MMSE score of 30 is within the normal range, and there are no genetic risk factors (APOE4 negative).  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to isolated fusiform gyrus atrophy, but no clinical or other structural evidence of impairment)",
  "timestamp": "2025-07-26T09:07:29.498512"
}