{
  "ptid_time": "109_S_4380_2012-08-07",
  "img_path": "/data/qiuhui/data/adni/images/109_S_4380/2012-08-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,085 mm³, 14.1% below the reference mean. With a Z-score of -0.34 (36.8th percentile), this represents normal volume ; whole brain volume measures 1,140,260 mm³, 5.6% above the reference mean. With a Z-score of 0.73 (76.8th percentile), this represents normal volume ; entorhinal cortex volume measures 5,585 mm³, 36.2% above the reference mean. With a Z-score of 2.45 (99.3th percentile), this represents significant enlargement; fusiform gyrus volume measures 23,544 mm³, 25.0% above the reference mean. With a Z-score of 2.13 (98.3th percentile), this represents significant enlargement; middle temporal gyrus volume measures 22,168 mm³, 3.9% above the reference mean. With a Z-score of 0.35 (63.7th percentile), this represents normal volume . ",
  "text_data": "Age is 72.3 years. Gender is Male. Education: 17 years. MMSE: 30.0. MoCA: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows normal ventricular and whole brain volumes, with significant enlargement in the entorhinal cortex and fusiform gyrus, which is atypical for Alzheimer's. Cognitive scores (MMSE, MoCA) are intact, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:32:44.113069"
}