{
  "ptid_time": "128_S_4607_2012-11-09",
  "img_path": "/data/qiuhui/data/adni/images/128_S_4607/2012-11-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,286 mm³, 1.8% below the reference mean. With a Z-score of -0.05 (47.9th percentile), this represents normal volume ; hippocampal volume measures 8,059 mm³, 3.2% above the reference mean. With a Z-score of 0.45 (67.3th percentile), this represents normal volume ; whole brain volume measures 1,061,530 mm³, 2.0% above the reference mean. With a Z-score of 0.24 (59.6th percentile), this represents normal volume ; entorhinal cortex volume measures 2,938 mm³, 20.5% below the reference mean. With a Z-score of -1.60 (5.4th percentile), this represents moderate atrophy; fusiform gyrus volume measures 18,353 mm³, 0.4% below the reference mean. With a Z-score of -0.04 (48.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,897 mm³, 1.8% above the reference mean. With a Z-score of 0.15 (55.8th percentile), this represents normal volume . ",
  "text_data": "Age is 56.7 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 30.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The entorhinal cortex shows moderate atrophy (Z-score -1.60, 5.4th percentile), which is a key early marker for Alzheimer's pathology. However, hippocampal and whole brain volumes are normal, and cognitive scores (MMSE, MoCA) are intact, suggesting no functional impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Isolated entorhinal atrophy may precede symptoms, but current cognitive performance is unimpaired.)",
  "timestamp": "2025-07-26T14:02:54.223051"
}