{
  "ptid_time": "053_S_0919_2007-05-08",
  "img_path": "/data/qiuhui/data/adni/images/053_S_0919/2007-05-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,626 mm³, 1.3% below the reference mean. With a Z-score of -0.03 (48.7th percentile), this represents normal volume ; hippocampal volume measures 8,389 mm³, 4.5% above the reference mean. With a Z-score of 0.45 (67.4th percentile), this represents normal volume ; whole brain volume measures 1,168,760 mm³, 3.0% above the reference mean. With a Z-score of 0.43 (66.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,631 mm³, 14.8% below the reference mean. With a Z-score of -1.03 (15.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,350 mm³, 12.9% below the reference mean. With a Z-score of -1.07 (14.3th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,961 mm³, 2.5% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume . ",
  "text_data": "Age is 62.9 years. Gender is Male. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild atrophy in the entorhinal cortex and fusiform gyrus, which are regions often affected in early Alzheimer's disease. However, hippocampal and whole brain volumes are normal, and the MMSE score of 29 is within the normal range, suggesting no significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy in key regions but preserved cognitive function and other normal structural measures)",
  "timestamp": "2025-07-26T07:55:45.311057"
}