{
  "ptid_time": "011_S_0023_2008-11-25",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0023/2008-11-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,551 mm³, 36.3% below the reference mean. With a Z-score of -0.87 (19.3th percentile), this represents normal volume ; hippocampal volume measures 8,015 mm³, 6.0% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume ; whole brain volume measures 1,036,290 mm³, 4.0% below the reference mean. With a Z-score of -0.52 (30.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,237 mm³, 21.1% below the reference mean. With a Z-score of -1.43 (7.7th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,166 mm³, 8.9% below the reference mean. With a Z-score of -0.76 (22.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,049 mm³, 10.7% below the reference mean. With a Z-score of -0.96 (16.7th percentile), this represents normal volume . ",
  "text_data": "Age is 74.7 years. Gender is Male. Education: 14 years. MMSE: 28.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume analysis shows mostly normal volumes, with mild atrophy only in the entorhinal cortex (Z-score -1.43, 7.7th percentile). The MMSE score of 28 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant cognitive decline is indicated.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:42:02.538824"
}