{
  "ptid_time": "137_S_4351_2017-10-31",
  "img_path": "/data/qiuhui/data/adni/images/137_S_4351/2017-10-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,330 mm³, 43.7% above the reference mean. With a Z-score of 1.00 (84.1th percentile), this represents mild enlargement; hippocampal volume measures 6,608 mm³, 7.1% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume ; whole brain volume measures 962,285 mm³, 1.3% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,855 mm³, 5.0% above the reference mean. With a Z-score of 0.30 (62.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,104 mm³, 5.3% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,153 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.7th percentile), this represents normal volume . ",
  "text_data": "Age is 73.8 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 26.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (Z-score 1.00), but hippocampal volume is within normal limits (Z-score -0.65), and other brain regions are also normal. Cognitive scores (MMSE 29, MoCA 26) are borderline for MCI but not strongly indicative of dementia. APOE4 carrier status increases Alzheimer's risk but is not diagnostic.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:32:06.937072"
}