{
  "ptid_time": "029_S_1038_2007-06-15",
  "img_path": "/data/qiuhui/data/adni/images/029_S_1038/2007-06-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,692 mm³, 15.6% below the reference mean. With a Z-score of -0.45 (32.5th percentile), this represents normal volume ; hippocampal volume measures 6,106 mm³, 12.4% below the reference mean. With a Z-score of -1.07 (14.3th percentile), this represents mild atrophy; whole brain volume measures 986,737 mm³, 4.1% below the reference mean. With a Z-score of -0.54 (29.5th percentile), this represents normal volume ; entorhinal cortex volume measures 2,997 mm³, 24.5% below the reference mean. With a Z-score of -1.60 (5.4th percentile), this represents moderate atrophy; fusiform gyrus volume measures 16,602 mm³, 8.1% below the reference mean. With a Z-score of -0.70 (24.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,609 mm³, 17.7% below the reference mean. With a Z-score of -1.58 (5.7th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 83.7 years. Gender is Male. Education: 20 years. MMSE: 26.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild to moderate atrophy in the hippocampus and entorhinal cortex, as well as moderate atrophy in the middle temporal gyrus—key regions affected in Alzheimer's disease. The MMSE score of 26 is borderline, and the presence of one APOE4 allele increases Alzheimer's risk, but the absence of severe global atrophy or significant cognitive decline suggests early-stage impairment.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-26T04:21:12.090291"
}