{
  "ptid_time": "082_S_2121_2013-11-14",
  "img_path": "/data/qiuhui/data/adni/images/082_S_2121/2013-11-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,737 mm³, 4.7% below the reference mean. With a Z-score of -0.11 (45.7th percentile), this represents normal volume ; hippocampal volume measures 6,755 mm³, 5.1% below the reference mean. With a Z-score of -0.46 (32.1th percentile), this represents normal volume ; whole brain volume measures 1,114,690 mm³, 14.4% above the reference mean. With a Z-score of 1.81 (96.5th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,049 mm³, 17.0% below the reference mean. With a Z-score of -1.04 (14.9th percentile), this represents mild atrophy; fusiform gyrus volume measures 21,926 mm³, 28.9% above the reference mean. With a Z-score of 2.63 (99.6th percentile), this represents significant enlargement; middle temporal gyrus volume measures 21,651 mm³, 12.9% above the reference mean. With a Z-score of 1.12 (86.9th percentile), this represents mild enlargement. ",
  "text_data": "Age is 70.8 years. Gender is Female. Education: 14 years. MMSE: 27.0. MoCA: 22.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal and ventricular volumes are within normal ranges, but the entorhinal cortex shows mild atrophy (Z-score -1.04, 14.9th percentile), which is concerning for early neurodegenerative changes. The MoCA score of 22 suggests mild cognitive impairment, while the MMSE of 27 is borderline normal. APOE4 positivity increases Alzheimer's risk.  \n\nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **Medium** (due to conflicting MMSE/MoCA scores and isolated entorhinal atrophy without significant hippocampal involvement)",
  "timestamp": "2025-07-26T10:03:36.747319"
}