{
  "ptid_time": "068_S_0210_2009-05-21",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0210/2009-05-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,187 mm³, 49.5% below the reference mean. With a Z-score of -1.13 (12.9th percentile), this represents mild atrophy; hippocampal volume measures 7,469 mm³, 5.0% above the reference mean. With a Z-score of 0.46 (67.6th percentile), this represents normal volume ; whole brain volume measures 942,000 mm³, 3.4% below the reference mean. With a Z-score of -0.42 (33.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,396 mm³, 7.5% below the reference mean. With a Z-score of -0.46 (32.2th percentile), this represents normal volume ; fusiform gyrus volume measures 15,247 mm³, 10.4% below the reference mean. With a Z-score of -0.94 (17.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,782 mm³, 7.2% below the reference mean. With a Z-score of -0.63 (26.5th percentile), this represents normal volume . ",
  "text_data": "Age is 75.4 years. Gender is Female. Education: 13 years. MMSE: 27.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular enlargement (mild atrophy) but otherwise normal volumes in key regions like the hippocampus, entorhinal cortex, and temporal lobes. The MMSE score of 27 is within the normal range, and the absence of APOE4 reduces genetic risk. No significant cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:46:35.790300"
}