{
  "ptid_time": "041_S_0549_2006-06-13",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0549/2006-06-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,057 mm³, 49.9% below the reference mean. With a Z-score of -1.18 (11.8th percentile), this represents mild atrophy; hippocampal volume measures 7,451 mm³, 7.2% below the reference mean. With a Z-score of -0.72 (23.7th percentile), this represents normal volume ; whole brain volume measures 1,037,380 mm³, 8.6% below the reference mean. With a Z-score of -1.21 (11.3th percentile), this represents mild atrophy; entorhinal cortex volume measures 4,742 mm³, 11.2% above the reference mean. With a Z-score of 0.78 (78.2th percentile), this represents normal volume ; fusiform gyrus volume measures 16,140 mm³, 18.9% below the reference mean. With a Z-score of -1.57 (5.8th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 17,783 mm³, 20.7% below the reference mean. With a Z-score of -1.70 (4.4th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 68.7 years. Gender is Male. Education: 14 years. MMSE: 25.0. Logical Memory: 2.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild to moderate atrophy in several brain regions (ventricular, whole brain, fusiform gyrus, middle temporal gyrus), while hippocampal and entorhinal cortex volumes are normal. The MMSE score of 25 is slightly below normal (typically ≥26), suggesting mild cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but is not definitive.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T06:58:40.866949"
}